Comprehensive AC Guide for Summer in Portland, Oregon

How to Stay Cool With Your Air Conditioner This Summer

Staying cool during Portland’s summers is about maximizing your air conditioner’s performance while reducing energy usage. Doing so gives you ultimate comfort without spending too much on cooling costs. Fortunately, Portland’s summers are mild with temperatures reaching into the mid-70s to mid-80s. However, it never hurts to get the most out of your air conditioner so that it works when you need it most.

Maintaining a cool environment in your home starts with investing in a quality air conditioner that includes money-saving features. Caring for your system can prolong its performance life and help it run more efficiently. You’ll also need to address issues quickly as they arise to cut down on repair costs. 

Below is a comprehensive AC guide for summer. The more you know, the more equipped you are to make smart choices throughout your system’s lifespan. 

Let’s get started!

QUICK SUMMARY

• • Understanding Portland’s climate lays the groundwork for buying the right air conditioner.
  • In addition to the climate, there are other things to consider when investing in a quality AC.
  • When choosing cooling systems, compare central air conditioners, heat pumps, and mini-split ductless AC.
  • Advanced features and accessories can enhance your AC’s performance and give you great comfort control. 
  • Preventative maintenance reduces repairs, keeps your system running efficiently, and prolongs your AC’s performance life.
  • Partner with a reputable HVAC company in Portland that provides exceptional customer service with no hassles.

What Makes Portland, Oregon’s Climate Unique?

Portland’s climate has wet winters and dry summers. In winter, temperatures range from 36°F to 54°F degrees Fahrenheit, and it rains a lot, which keeps the air humid. Summers are different; they’re warmer, with temperatures between 53°F to 83°F, and the air gets drier.

The city gets around 144 sunny days each year, but it’s also quite windy, especially in spring and fall. This combination of weather patterns, from rain to sunshine and wind, makes Portland’s climate interesting and varied.

 Let’s take a closer look at the Portland climate and how it affects your air conditioner. 

Moderate Altitude

Portland is about 20 feet above sea level, which makes the air moist. For most towns, being closer to sea level equates to warmer temperatures during the summer. However, the winds from the east compensate by cooling the air (more on that below). Portland experiences mild weather during the summer without extreme highs or lows in temperature, especially since it’s near the coast, where the ocean acts as a natural thermal buffer. 

Lower altitude combined with the coastal climate keeps your air conditioner from working too hard to cool your home. 

Moderately Humid Air

The average annual relative humidity in Portland is 69.7% and the average monthly relative humidity is 59% during summer. Healthy humidity levels range between 30 and 50%. Portland is just above the healthy range, making it moderately humid. 

If you don’t like higher humidity levels, you’ll want to add a whole-home humidity control system to your air conditioner. Some modern AC systems have them built-in. Or, you can install them into your current system. A dehumidifier can remove the moisture from the air, making it drier. It also lets you control the humidity level throughout the house.

Rain or Shine?

The Pacific Northwest has the reputation of being a rainy area of the United States. While this is true for many cities in the region, Portland’s summers are relatively dry, with only 3% of the rainfall occurring in July and August. 

On the one hand, there is more sun, which contributes to warmer days. On the other hand, the dryer summers keep the humidity lower. Either way, a drier summer does not necessarily mean a hotter summer. You won’t necessarily have to run your AC all the time, but there are hot days when you will want to use your AC.

Mild, Cool Winds

In many parts of the country, the winds come from the south, producing higher heat and humidity. Not so with Portland. During the summer, high pressure starts to build over the Pacific Ocean. Northwesterly winds arrive during the afternoon and evening, and moisture levels drop because of the high pressure. This pressure system is why summers are warm and dry in Portland.

The downside is that the average wind speed is only 5.3 miles per hour. You may not get the breeze you want when opening the windows. Fortunately, the city’s coastal location keeps the summers from getting too hot. 

What to Consider when Buying an AC to Tackle the Portland Climate?

Overall, you can expect a mild summer in Portland, Oregon compared to the rest of the US. Now that you have a better understanding of the climate, it’s time to take a closer look at what you should consider when buying an air conditioner conducive to this area.

Keep in mind, that when you’re comparing products, your main concerns should involve:

• Total cool air output
• Energy consumption
• Performance lifespan
• Features and add-ons
• Personal cooling preferences

If you need help comparing AC products, contact a local HVAC company in Portland. An experienced, certified technician can guide you through the process and help you pick the perfect Air Conditioning system. 

Here are some things to consider when staying cool in Portland, Oregon this summer:

1. The SEER Rating

One of the things you want to look for in an air conditioner is how efficiently it runs. The more efficient a unit is, the less energy it uses, the less you pay in energy costs. Efficiency is often measured using the SEER rating. What is it?

SEER is an industry term that stands for Seasonal Energy Efficiency Ratio.

According to the Department of Energy, the SEER Rating is a measurement that indicates how efficient your air conditioner is during summer—specifically the late spring/summer months between May and August.

Agencies like the Energy Information Administration and ENERGY STAR can calculate an air conditioner’s cooling output and report it in British Thermal Units (BTUs). From there, they divide the air conditioner’s output by the number of how many watt-hours it operates during summer.

The equation looks like this:

SEER = Total Cooling Output (in BTUs) / Total Electric Energy Input (in Watt-Hours)

The SEER range is 14 to 24. As you can guess, an AC with a higher SEER rating is more efficient. A model with a SEER rating of 20 is going to operate at a higher efficiency than a model with a rating of 15. The State of Oregon recommends a SEER rating of at least 14 for central air conditioners and heat pumps.

However, it should be noted that you don’t necessarily need an AC with a high SEER rating in Portland, Oregon. With a milder summer climate and temperature, you may be able to get by with a mid-range SEER rating and still achieve the right efficiency.

Note: The lowest SEER rating you can install in Oregon is 14. 

2. Buy a System Ideal for the Oregon Climate

Now that you know more about the climate in Portland, Oregon, you’ll want to buy an air conditioner that works best in this climate. Most experts recommend investing in a central air conditioner or heat pump, as they operate at maximum efficiency in this environment. 

If you have a smaller house, your home doesn’t have ductwork, or you need a supplement to your current AC, a ductless unit could be a great option. 

We go into more detail about each of these products below. In the meantime, take into account the average temperature, humidity, and amount of sunshine, which all contribute to the overall weather conditions in Portland.

3. Your Home’s Square Footage

If you don’t know your home’s overall square footage, simply measure the length and width. Then, multiply those two numbers together. 

However, you’ll need to get a bit more detailed than this basic estimate. What you want is your home’s livable square footage. You can use the same equation for each room you want to include, and then add all the rooms together. 

Whether you’re buying a new home or replacing an older system, you’ll need to add up your home’s square footage. Homes with more square footage require air conditioners with greater cooling output. 

The industry standard for measuring how much AC power you need is measured in British Thermal Units (BTUs). BTUs measure how much heat your air conditioner removes from the air. There are three factors to consider when assigning a BTU measurement:

1. Area: The area is the total area you want to cool. This is primarily the livable areas of your home.
2. Temperature Difference: This refers to the difference between the outside temperature and your desired inside temperature.
3. Constant: The constant is all the factors involved in cooling your home, such as insulation, ceiling height, and climate zone.

Put this all together, and you’re equation looks like this:

BTUs = Area×Temperature Difference×Constant

Here’s a simpler way of looking at it below:

Square Footage	Needed AC BTUs
100 – 150 sq. ft.	2,000 – 3,000
300 – 350 sq. ft.	6,000 – 7,000
700 – 1,000 sq. ft.	14,000 – 20,000
1,000 – 1,200 sq. ft.	20,000 – 24,000
1,400 – 1,500 sq. ft.	28,000 – 30,000
2,000 – 2,500 sq. ft.	40,000 – 50,000

4. Your Home’s Overall Design and Floor Plan

Complex floor plans require a more complex AC setup with an elaborate air duct network. You’ll need to include your home’s floor plan in your list of considerations. A few easy questions can help you determine your cooling needs based on your home’s overall design:

• How many stories does my home have?

• Will the AC cool the basement?

• Does the house have a basic or complex floor plan?

• How many rooms do we spend time in?

• Does my home have a metal, brick, or wood construction?

Once you answer these questions, you’re one step closer to understanding the type of AC system you need and the amount of power required to cool your home. If you’re still unsure, you can consult with our Portland, Oregon HVAC company or your local energy provider. Central Air Heating, Cooling & Plumbing offers a broad range of AC repair, installation, and maintenance services, so we can help you determine the right unit for your home. 

5. High-Efficiency Air Conditioners

Earlier, we mentioned the SEER rating. The rating tells you how efficient a unit is, so you can use it to differentiate high-efficiency air conditioners and standard air conditioners apart. What rating does a high-efficiency AC get? Look at the chart below:

Category	SEER Rating
Low-Efficiency	14 – 15
Mid-Efficiency	15 – 17
High-Efficiency	18+

However, a higher SEER rating is only part of the puzzle. Here are some other items to look for in a high-efficiency model.

• A SEER rating greater than 18
• An ENERGY STAR certification
• An air conditioner with enough BTUs to operate efficiently
• Variable-capacity or variable-speed operation

When combined, these qualities help you get maximum performance at minimal cost.

Note: As of 2023, the EPA requires a minimal SEER rating of 14 (also known as SEER2 rating) for all air conditioners, regardless of the type of system. As we stated earlier, the state of Oregon recommends a SEER rating of at least 14. 

Bottom Line: Since the temperatures reach the upper 80s in Portland, a high-efficiency AC may be a good idea, especially if you want to save money and leave a lower carbon footprint. However, you can always talk to one of our AC installation techs about what will work best for your home’s cooling needs.

6. Other Items to Think About

Here are a few other items that can help you fine-tune your search for the best AC for your home. 

• Thermostat features
• Installation and maintenance
• Performance noise and volume
• Air quality additions
• Upfront cost and warranty terms
• Smart features, like Wi-Fi connectivity and app control
• Product ratings and reviews
• Your personal preferences and lifestyle

3 Main Types of Air Conditioners for Your Oregon Home

According to Energy Trust of Oregon, air conditioners, heat pumps, and ductless AC are all viable solutions that can lower energy costs and improve comfort. 

Central air conditioning can be used with a gas furnace heating system. Ducted heat pumps are efficient for homes with existing ductwork and can heat and cool a home. Meanwhile, ductless mini-split air conditioners can be installed in a home that doesn’t have existing ductwork.

Let’s take a closer look at each type of cooling system.

Central Air Conditioner

What is it?
A central air conditioner uses a network of ducts to distribute cool air throughout your home. It consists of an outdoor unit that contains the compressor and condenser, and an indoor unit that contains the evaporator coil. If you own an older home, you may be able to use the current ductwork to accommodate a new central AC.

How does it work?
Central air conditioners extract heat from indoor air and transfer it outside, leaving behind cool air that is circulated through ducts into your living spaces. This system is efficient for larger homes with existing ductwork and provides consistent cooling throughout the entire house. The AC is part of a larger HVAC system that also includes a heating unit such as a furnace. 

When is it the best cooling option for my home?
Central air conditioning is ideal for homes with existing ductwork, especially in areas with hot and humid climates. It’s suitable for larger homes or multi-story residences where consistent cooling is needed throughout the entire living space. If you have a more complex floor plan or home design, or if you want more advanced features, a central air conditioner may be your best option. 

Do I need a central AC in Portland, Oregon?
Portland temperatures get hot during the summer. A central air conditioner can be a good option for homes with existing ductwork in this area. It provides effective and consistent cooling, making it suitable for residences in the area. If you have a larger home, you may need a more elaborate system to tackle the hotter temperatures in July and August. 

Heat Pump

What is it?
A heat pump is a versatile cooling and heating system that extracts heat from the air or ground outside your home and transfers it inside during the winter for heating. In the summer, it reverses this process to remove heat from indoor air and expel it outside for cooling. If you have a heat pump, you won’t need to buy separate cooling and heating systems, such as an AC and a furnace. 

How does it work?
Heat pumps use refrigerant to absorb and release heat through a cycle of compression and expansion. During the summer, they extract heat from indoor air and release it outside, providing cooling. This makes them energy-efficient and environmentally friendly alternatives to traditional air conditioners. Heat pumps are installed outside, which frees up space inside your home. 

When is it the best cooling option for my home?
It depends on several factors. For instance, if you already have ductwork, you can upgrade to a heat pump seamlessly. However, if not, you’ll have to add ductwork to the home. Alternatively, you can get a ductless heat pump. Even if you have a larger home or multiple stories, a heat pump has enough power to provide balanced cool air throughout the house. 

Do I need a heat pump in Portland, Oregon?
A heat pump can be an excellent cooling option. Its dual functionality for heating and cooling makes it versatile for year-round use. It provides great energy-efficient and cost-effective climate control for homes in the area. However, it’s a good idea to talk to one of the HVAC professionals at Central Air Heating, Cooling & Plumbing to determine if it’s your best option during the Portland winters. 

Ductless Mini-Split AC

What is it?
A ductless mini-split air conditioning is a compact cooling system that consists of an outdoor compressor unit and one or more indoor air-handling units. It does not require ductwork and is typically installed in individual rooms or zones for targeted cooling.

How does it work?
Ductless mini-split ACs use refrigerant to cool indoor air directly, eliminating the need for ducts. Each indoor unit is controlled independently so that you can control temperature settings in different areas of your home. This makes them highly efficient and versatile cooling solutions.

When is it the best cooling option for my home?
Ductless mini-split AC is ideal for homes without existing ductwork or for room additions where extending ducts is impractical. They’re also suitable for homes with specific cooling needs in different areas, as they offer a more customizable setup.

Do I need a ductless mini-split AC in Portland, Oregon?
In Portland, where ductwork may not be feasible or necessary for every room, a ductless mini-split AC can be a practical cooling solution. Its flexibility and efficiency make it suitable for homes with varying cooling needs so that you get personalized comfort and energy savings.

Which Type of Air Conditioner is Right for Me?

Look at the chart below to determine whether a central AC, heat pump, or ductless mini-split AC is best for your Portland, Oregon home.

Feature	Central Air	Heat Pump	Mini-Split AC
Primary Function	Cooling	Heating and cooling	Heating and cooling
Energy Efficiency	Moderate, depending on the SEER rating	High, especially in mild climates	Very high, with high SEER ratings
Installation Requirements	High, requires ductwork	Moderate to high, requires ductwork for traditional systems	Low, does not require ductwork
Maintenance Needs	Filter changes	Similar to central AC, plus the need to switch modes seasonally	Less frequent, due to no ductwork, but regular cleaning of filters is needed
Space Requirements	Significant, for both indoor and outdoor units	Similar to central AC, requires space for indoor and outdoor units	Minimal, small outdoor units and compact indoor units
Zoning Capabilities	Possible with advanced setups	Possible with advanced setups	Inherent, each indoor unit can be controlled independently
Lifespan	15-20 years	15-20 years, can vary with climate	20+ years, depending on maintenance
Climate-Friendly	Best in areas with hot summers	Efficient in areas with mild to moderate winters	Suitable for both hot and cold climates, excellent for targeted heating/cooling

Advanced AC Features You Should Know

When it comes to getting the most out of your air conditioner, every little bit helps. Advanced AC features help your system last longer, contribute to efficiency, and improve your lifestyle. Let’s take a look at some popular features available right now. 

Programmable Thermostats

A programmable thermostat allows you to set specific temperatures for different times of the day. You can program it to adjust the temperature based on your schedule, so you don’t waste energy cooling an empty house. 

Use pre-set schedules to control your home’s heating and cooling systems. You can program them to raise the temperature when you’re away or asleep and lower it when you’re at home and awake, helping you save energy and money.

Installing a programmable thermostat can help you save energy and reduce your utility bills. By automatically adjusting the temperature settings throughout the day, you can ensure that your home stays comfortable when you need it to be while minimizing energy usage when you don’t.

Smart Thermostats

A smart thermostat connects to your home’s Wi-Fi network and can be controlled remotely from your smartphone or computer. It learns your habits and preferences over time. It automatically adjusts the temperature to maximize comfort and efficiency.

Smart thermostats use sensors and algorithms to monitor your home’s temperature, humidity, and occupancy. They can learn your schedule and temperature preferences, adjusting the settings accordingly to keep you comfortable while also saving energy.

With remote access and intelligent features, you can easily control your home’s temperature from anywhere and optimize your energy usage for maximum efficiency and comfort.

Zoned Temperature Control

Zoned temperature control divides your home into different zones, each with its own thermostat and temperature settings. You can customize the temperature in different areas of your home, providing personalized comfort and energy savings.

Zoned temperature control systems use dampers in your ductwork to regulate airflow to different zones. Each zone has a thermostat so that you can set specific temperature levels for each area. You’re only cooling the areas of your home that need it, reducing energy waste.

You save money on your energy bills while improving comfort levels in your home. You also reduce energy waste and ensure that everyone stays comfortable in their preferred temperature zones.

Integrated Indoor Air Quality

Did you know that Portland consistently has good air quality? However, the outdoor air quality isn’t your primary concern. The real question is how good the air quality is in your home. 

Integrated indoor air quality features are built-in components of your HVAC system that improve the quality of the air inside your home. Solutions include air filters, UV lights, and humidity controls that work together to remove allergens, pollutants, and excess moisture from the air.

Onboard indoor air quality systems purify and clean the air inside your home. Air filters capture particles like dust, pollen, and pet dander, while UV lights kill airborne bacteria and viruses. Humidity controls help maintain optimal indoor humidity levels for comfort and health.

How to Keep Your AC Running Reliably All Summer Long

The hot season in Portland can start as early as June and run into September. Your goal should be to maintain an air conditioner that produces consistent cool air during this period. 

Meeting this goal goes beyond just installing a good system. You’ll need to schedule ongoing annual or seasonal AC maintenance to care for all the components and address small issues before they become big problems. Preferably, you’ll want to schedule professional AC maintenance in Portland in the early spring before you turn the unit on for the first time. When it’s time to schedule your AC maintenance, you can call our HVAC maintenance team.    

You may be wondering if the cost of maintenance is worth it. Check out these maintenance statistics:

• The average annual AC maintenance in Portland, Oregon costs $150 to $350.
• By contrast, the average annual AC repair cost in Portland, Oregon can go up to $650. 
• According to the US Department of Energy, just changing the filters on your AC reduces energy consumption by 5% to 15%.
• Maintaining your ductwork can improve the efficiency of heating and cooling systems by as much as 20%.

Even the most expensive annual maintenance costs typically top out at around $500. However, it can be as high as $1,600 to repair your AC or between $5,000 and $12,500 for AC replacement.

The bottom line: No matter how you look at it, you save money and enjoy a longer-lasting system when you provide ongoing care and maintenance. 

How Do Portland, Oregon Summers Impact AC Maintenance

The summer temperatures throughout the state of Oregon fluctuate considerably depending on where you live. Look at these examples:

City	Average Summer Daily High Temperature
Portland	76°F
Bend	74°F
Medford	84°F
Eugene	78°F
Clackamas	80°F

The climate in Portland, Oregon warms up as summer progresses. By August, the daily high is 83°F during the day. 

While nighttime temperatures are in the 50s during the summer, the daytime highs are in the 70s to 80s. The average daily high for June, July, and August is around 66°F. Let’s break it down month by month:

June

• Average high: 74ºF
• Average low: 53ºF
• Average rain: 1.6”

July

• Average high: 82ºF
• Average low: 57ºF
• Average rain: 0.5”

August

• Average high: 83ºF
• Average low: 57ºF
• Average rainfall: 0.6”

What does this mean for your air conditioner? You’ll be using your AC a lot during the day to combat the hot summer days. However, at night, you may be able to turn your AC off. Not using your AC at night can reduce wear and tear, which means maintenance will be easier. It also cuts down on Air Conditioning repairs and energy costs.  

What is Air Conditioner Maintenance and What does it Include?

Once you install your new air conditioner, you’ll want to keep it running reliably and efficiently throughout its expected lifespan. During AC maintenance, our HVAC technicians inspect the system, make adjustments, clean the parts, change the filter, and identify issues along the way. 

By signing up for an AC maintenance plan with Central Air Heating, Cooling & Plumbing, you can save money on your long-term AC repair and replacement costs. We can also save you money through special discounts on replacement parts. After you schedule AC maintenance in Portland, Oregon, one of our certified Technicians will show up to perform four main tasks:

• AC Inspection: The technician will assess your entire system, including all inside and outside components. They’re testing your system and looking for any issues that affect its performance. 

• AC Servicing: The technician will make minor adjustments and fixes. The goal here is to address small issues before they turn into big problems. 

• AC Cleaning: The technician removes dirt and grime buildup to reduce friction with moving parts and allow air and condensation to pass through the system freely.

• Air Filter Cleaning or Replacement: Although you can do this yourself, the technician can clean or replace the filter, depending on what type of filter you have. Whether you do it or have it done professionally, make sure you change the filter according to manufacturer specifications.

Keep in mind that each HVAC company in Portland approaches AC maintenance slightly differently. Our HVAC technicians can walk you through our maintenance services and explain what’s involved in our service plans. With that in mind here’s what you can expect during a maintenance visit from Central Air Heating, Cooling & Plumbing:

AC Maintenance Task	Task Description
Filter Replacement	Replace or clean air filters to ensure efficient airflow and improve air quality.
Coil Cleaning	Clean the evaporator and condenser coils to prevent reduced heat absorption and cooling efficiency.
Coil Fin Straightening	Straighten bent coil fins to restore airflow and system efficiency.
Drain Cleaning	Clean the condensate drain to prevent water damage and humidity issues.
Refrigerant Check	Check refrigerant levels and recharge if necessary to ensure optimal cooling.
Thermostat Calibration	Calibrate the thermostat for accurate temperature control and energy efficiency.
Electrical Connections Check	Inspect and tighten electrical connections to enhance the safety and dependability of the system.
Lubrication of Moving Parts	Lubricate motors and bearings to reduce friction and extend component lifespan.
Blower Components Adjustment	Adjust blower components to ensure balanced airflow and stabilize system operation.
System Controls Check	Test system controls to ensure proper start, operation, and shutdown sequences.
Ductwork Inspection	Inspect ductwork for leaks, obstructions, and insulation issues to ensure efficient air distribution.
Condensate Pump Inspection	Check the condensate pump to ensure it is functioning correctly and efficiently.
Airflow Measurement	Measure airflow through the evaporator coil to verify it meets design specifications.
Safety Devices Check	Test safety devices to ensure they are functioning properly to protect the system.
Air Leakage Check	Inspect for air leakage in the AC unit and ductwork to prevent energy loss.
Performance Evaluation	Conduct a comprehensive performance evaluation to ensure the system is operating efficiently and effectively.

Note: AC maintenance is not the same as repairs. However, if the technician finds an issue with your system, they may recommend a repair or part replacement, depending on the situation. Because a faulty part can influence the results of subsequent tests, the technician will pause the maintenance check and fix the part before they complete the rest of the checklist. 

What is an AC Maintenance Plan and What Does it Include?

The best HVAC companies in Portland, Oregon will often provide some sort of an annual plan to offset the cost of maintenance and repairs. A maintenance plan often includes scheduled seasonal or annual visits, as well as perks and discounts. At Central Air Heating, Cooling & Plumbing, we offer a maintenance plan that entails a complete inspection, filter cleaning or replacement, the cleaning of drain lines, and more. 

When it’s time to schedule your AC service, our company will let you know. We can also provide regular check-ups for your other HVAC devices. Our technicians will inspect, clean, and maintain your air conditioner to get it ready for summer. 

Here’s what you can typically expect to find in our AC annual maintenance plans:

• Service discounts: As a member of our maintenance plan, we’ll strive to give you the lowest rate possible for our specified services.
• Specials: Thanks to your exclusive membership, you may receive specials that are not offered to the public.
• Priority service: No matter how busy our technicians are, they’ll put you at the front of the line.
• Automatic visits: You get instant annual or seasonal service calls.
• Notifications: Our HVAC company will notify you when it’s time for your scheduled visits, so you don’t have to keep track of when your AC needs to be serviced.

There are several benefits to signing up for an AC maintenance plan. 

First, you save money on more than just maintenance. You will also get discounts or coupons for other services, such as installations and repairs. Second, you’ll get the preferred service whenever you call. In other words, the technician puts you at the front of the line. Third, the company may provide additional services not normally associated with maintenance. 

The biggest benefit is that you keep your system running consistently with zero problems all summer. You can also keep your energy costs low. 

AC Maintenance Tips

The majority of air conditioning maintenance and repair tasks should be performed by a certified and licensed HVAC technician in Oregon. It ensures that the job is done right the first time and adheres to industry standards. However, there are some jobs you can do yourself. Let’s take a look at some DIY AC maintenance jobs you can tackle. 

1. Read the AC Manual

Learn how your AC works by reading the manual. It provides valuable information on maintenance and troubleshooting, empowering you to handle minor issues and optimize performance. Some of the topics it covers include:

• Operating instructions
• Maintenance guidelines
• Troubleshooting tips
• Safety precautions
• Warranty information
• Technical specifications

If you can’t find the original hard copy, there should be online resources available to download a digital copy. Go to the manufacturer’s website and try to download a copy of your model. 

2. Change or Clean the AC Air Filter

Clogged filters restrict airflow. So, your air conditioner has to work harder, which leads to frequent breakdowns. Regularly changing or cleaning your AC air filter provides smoother airflow and improves the overall air quality in your house.

Filter Type	Change Frequency
Fiberglass Disposable Filters	Every 30-60 days
Pleated Media Filters	Every 90 days
Electrostatic Filters	Every 30 days
Activated Carbon Filters	Every 3 months
HEPA Filters	Annually or as recommended

3. Clean the Area Around the Outside AC Unit

Keep the area surrounding your outdoor AC unit clean and free of debris. Leaves, grass clippings, dirt, and other outdoor debris accumulate around the unit. As a result, they obstruct airflow and put more pressure on the unit. Regularly remove any debris and trim vegetation around the unit to ensure proper airflow and prevent overheating.

4. Check the Drain Pan and Drain Line

Every air conditioner is equipped with a drain pan and drain line. The drain line removes excess moisture produced by your AC system. Over time, the drain line can become clogged with algae, mold, or debris, leading to water backup and potential water damage. Periodically check the condensate drain line for clogs or blockages and clear them as needed to prevent issues and maintain proper drainage.

5. Check the Vents for Proper Airflow

Blocked or closed vents can disrupt the airflow. It leads to uneven cooling and causes strain on your AC system. Go around the house and check that all vents are open and unblocked to allow for proper airflow. Turn on the AC, place your hand in front of the vent, and check for consistent airflow for about 30 seconds. If you notice little to no air, there is a problem with the AC or ductwork. 

6. Check the Thermostat 

To check your thermostat, remove the cover and check for dust or debris. Use a soft brush or compressed air to clean the interior. This will give you more accurate temperature readings. Use a thermometer to compare the thermostat’s reading with the actual room temperature. If there is an issue, one of our HVAC technicians can adjust the calibration settings during their next maintenance check or repair visit.

7. Winterize the Outside AC Unit

To winterize your outside AC unit, you’ll need to turn off the power to the unit by switching off the circuit breaker. Next, remove any debris, such as leaves or twigs, from around the unit and clean the exterior surfaces. Cover the unit with a waterproof cover to protect it from snow, ice, and freezing temperatures during the winter months.

8. Tackle AC Repairs Right Away

Small issues can escalate into larger problems if left unattended. For example, a minor refrigerant leak can lead to a loss of cooling efficiency and strain on your system, potentially causing more extensive damage over time. Delaying repairs risks further damage that can have lasting effects long after the technician makes the initial repair. 

9. Keep Your Home Insulated

A well-insulated home helps your air conditioner by trapping cool air inside and preventing it from escaping. Your AC can maintain a comfortable temperature with less effort. Areas to insulate include the attic, walls, floors, and around doors and windows. By insulating these areas, you reduce the workload on your AC. The result is lower energy bills and improved overall efficiency.

10. Open All Inside Doors and Air Vents

When doors and vents are closed, air becomes trapped in certain areas, making it harder for your AC to cool your home evenly. So, open all the doors and vents in your home to help air circulation and improve your air conditioner’s performance. This allows air to flow freely throughout your home. You get more balanced cooling and reduce strain on your air conditioner.

QUICK SUMMARY

• • Identifying AC Issues: Use your senses to detect problems with your AC system, such as strange noises, unusual odors, warm areas, or smoke.
  • Common AC Problems and Symptoms: Issues like refrigerant leaks, frozen evaporator coils, dirty filters, faulty thermostats, electrical problems, capacitor issues, compressor failure, fan motor problems, drainage issues, and poor installation can affect your AC’s performance.
  • Steps to Take When Your AC Stops Working: Turn off the AC to prevent further damage, keep windows and doors closed to maintain a cool environment, contact a certified HVAC technician in Portland for repairs instead of DIY, and evacuate the premises if you detect gas or hazardous odors, seeking professional help immediately.

How to Troubleshoot & Fix AC Issues

Your air conditioner is made up of interconnected moving and non-moving parts that work together to keep your system running smoothly and your home cool. With so many different parts involved, problems will occur over time. 

For this reason, it’s important to get to know your system if only to identify problems as they have. Fortunately, most problems make themselves known. Simply use your senses. If you smell persistent odors, hear weird noises, or notice that the house isn’t cool, there’s likely an issue you need to address.  

Let’s take a look at some common AC repairs, how to identify them, and what you should do when they happen. 

10 Air Conditioning Issues You Should Know

When identifying AC problems, use all your senses. hear noises, smell bad odors, feel around for humid or tepid air, and look for smoke. Below are ten common AC problems, their root causes, and their symptoms.

1. Refrigerant Leaks

• What happened? There is a loss of refrigerant due to leaks in the system.
• Why did it happen? This can occur because of corrosion, loose connections, or manufacturing defects.
• What to look for: Pay attention to reduced cooling capacity, hissing noises, or ice buildup on refrigerant lines.

2. Frozen Evaporator Coils

• What happened? There is an accumulation of frost or ice on the evaporator coils.
• Why did it happen? It may occur because of restricted airflow, low refrigerant levels, or malfunctioning components.
• What to look for: You’ll notice warm air blowing from vents, reduced airflow, and water leakage.

3. Dirty or Clogged Air Filters

• What happened? Your system may develop an accumulation of dust, dirt, and debris on air filters.
• Why did it happen? This problem happens when there’s a lack of regular maintenance or high levels of indoor pollutants.
• What to look for: Watch out for reduced airflow, decreased cooling efficiency, and increased energy bills.

4. Faulty Thermostat

• What happened? A faulty thermostat causes inaccurate temperature readings or a failure to control the HVAC system.
• Why did it happen? It can happen because of electrical issues, calibration problems, or aging components.
• What to look for: Be observant of inconsistent temperatures and the HVAC system not turning on/off as expected.

5. Electrical Issues

• What happened? Problems with electrical connections, wiring, or components can cause electrical issues.
• Why did it happen? This can take place because of wear and tear, poor installation, or power surges.
• What to look for: You may notice tripped circuit breakers, flickering lights, or burnt odors.

6. Capacitor Problems

• What happened? Sometimes, air conditioners suffer from a malfunction of the start or run capacitor.
• Why did it happen? This occurs because of aging, electrical issues, or overheating.
• What to look for: An HVAC system not starting, humming noises, and frequent cycling on/off are frequent signs of a problem.

7. Compressor Failure

• What happened? You may deal with a loss of compressor function, which leads to inadequate cooling.
• Why did it happen? Often, this occurs because of overheating, refrigerant issues, or mechanical failures.
• What to look for: Pay attention to warm air blowing from vents, loud noises, and tripped breakers.

8. Fan Motor Issues

• What happened? Fan motor issues can happen because of a malfunction of the blower or condenser fan motor.
• Why did it happen? Malfunctions can occur because of a lack of lubrication, electrical problems, or worn-out parts.
• What to look for: You may notice reduced airflow, unusual noises, or overheating.

9. Drainage Problems

• What happened? An air conditioner can sometimes develop a blocked or damaged condensate drain line.
• Why did it happen? This problem generally happens because of an accumulation of debris, algae growth, or improper installation.
• What to look for: You’ll likely notice common symptoms, like water leakage, mold or mildew growth, and musty odors.

10. Improper Sizing or Installation

• What happened? A mismatch between HVAC system capacity and home size or ductwork can cause HVAC problems.
• Why did it happen? An incorrect assessment, shortcuts during installation, or DIY errors can cause this problem.
• What to look for: Watch for inadequate cooling/heating, frequent cycling, or uneven temperatures.

What Should I Do if My AC Stops Working?

The key to preventing bad problems from becoming worse is to act quickly. Here’s a step-by-step how-to guide on what to do when your air conditioner stops working.

Step 1: Turn the System Off

If the system starts making loud noises, emits bad odors, or isn’t producing cool air, it’s time to turn it off. Running a disabled system only makes it worse. Simply turn the thermostat off. Do not unplug the AC or turn the fuse box off.

Step 2: Keep All Windows and Doors Shut

If it’s summertime, you probably have your doors and windows shut. If so, do not open them. Keeping the windows and doors shut prevents cool air from escaping and warm air from coming in. Also, do not operate any heat-producing appliances, such as a stove, hair dryer, or clothes dryer. Last, turn off the lights.

Step 3: Contact Your HVAC Company in Portland, Oregon

Instead of taking matters into your own hands, contact a certified HVAC technician in Portland, Oregon. There are a lot of benefits to working with a professional (see below). While we’re on the way to your home, clean out the AC area and remove clutter from the house. This makes it easier for us to do our job quickly.

Step 4: Leave the House if You Smell Something

Always respond quickly to gas or toxic odors. This is especially true if you run your AC on natural gas. Do not try to open the windows or doors to air out the house. Instead, grab your phone, leave the house, and call an HVAC professional. In the case of natural gas, you should call your gas provider right away because they can fix a gas leak.

Harmful smells may include: 

• Something that is burning or smells like an electrical fire
• Rotten eggs or sulfur
• Musty odors
• Chemicals
• Natural gas
• Burning rubber

Each smell signifies that there’s something seriously wrong with your air conditioner.

QUICK SUMMARY

• • HVAC Licensing and Certification in Oregon: Contractors need licenses from the Oregon Construction Contractors Board (CCB), including various certifications for technicians.
  • Choosing HVAC Professionals in Portland: Look for licensed, reputable professionals offering prompt service, fair pricing, and emergency availability.
  • Benefits of Certified Technicians: Certified technicians prevent problems, ensure compliance with regulations, and protect warranties.

License and Certification Requirements for HVAC Professionals in Oregon

All HVAC contractors in Oregon have to go through some sort of certification and licensing process to legitimately work on home air conditioning systems. Here is some quick-reference license and certification information that gives you an inside look at what you can expect from an HVAC professional in Portland. 

Contractor’s License

The state of Oregon requires a formal HVAC license for a technician to perform HVAC service on your equipment. The Oregon Construction Contractors Board (CCB) issues licenses for HVAC work. 

Certification

Each category of certification has several endorsements that applicants can apply for.

Once applicants pass their certification, Oregon offers two types of HVAC technician licenses and one contractor license: Class A and Class B Limited Energy Technicians, and Limited Maintenance Specialty Contractor HVAC-R.

How to Hire Reputable HVAC Professionals in Portland, Oregon

When hiring an HVAC technician in Portland, it’s important to seek out the most qualified professionals in your area. You don’t just want the best contractor. Instead, you want an expert perfectly matched for your cooling system. At Central Air Heating, Cooling & Plumbing, we only hire fully licensed HVAC technicians who have a reputation for getting the job done right the first time. We believe our clients deserve the best.

You need an HVAC company that is:

• Licensed, certified, and insured
• Provides fast service
• Charges reasonable rates
• Gets the job done right the first time with lasting results
• Prompt, friendly, and respects your property
• Communicates clearly about everything associated with the job
• Does not try to upsell you if it’s not necessary
• Can provide all kinds of references from recent, satisfied customers

A reputable, experienced contractor will check nearly every box above. They know what it takes to get your business and keep your business. They also understand the importance of establishing a solid reputation over time. 

Below is a checklist of things to look for when searching for an Oregon HVAC company in your area.

1. Presents the Right Credentials

At a minimum, any professional you work with should present the credentials we talked about above. They should be willing to show you their certification and operator’s license. If a technician can’t or won’t show these credentials, don’t hire them. Doing so presents a big risk to your air conditioner and can lead to a wide range of hassles. 

2. Has Established a Long-Standing Reputation

An established HVAC company in Portland has built a solid reputation over time. They are well-known, respected by their peers, and referred by friends and family. They have a presence both offline and online. They have a website and may even have advertisements on TV or radio. They’ve built credibility through consistent, reliable service. 

3. Offers Emergency AC Service

Air conditioner problems rarely happen when it’s convenient. In fact, they often happen during weekends, nights, or holidays. Look for an HVAC company that offers emergency service and can respond to problems right away. Some companies offer 24/7 service. Others provide emergency calls during operating hours. Either way, you shouldn’t have to settle for less during an emergency.

4. Displays a Clean, Professional Image

You have to be able to trust the technicians you invite into your home. They need to demonstrate professionalism at every level. The right company will respond to your calls, show up on time, and pull up with marked vehicles and uniformed staff. They show respect and courtesy to you and your family. They also handle your property with care.

5. Has High Customer Ratings and Reviews

It’s easier today to find customer feedback online. Simply look for the company on Google. You can also go to their website or their social media page. Look for specific, helpful feedback. Also, look for ratings. Companies that have a lot of ratings and reviews demonstrate credibility and experience since they do a lot of work. 

6. Communicates Clearly

An honest technician tells you three things without ambiguity:

1. What the issue is
2. What they’re going to do about it
3. How much it’s going to cost

If you can’t get a technician to tell you these three things with absolute clarity, don’t hire them. There’s no point in working with a professional that gives you the runaround or doesn’t tell you everything you need to know to make an informed decision. At Central Air Heating, Cooling & Plumbing, we are always upfront about our prices and the AC issues, so our customers always know what to expect. 

Why You Should Hire a Certified Oregon Technician for AC Service

You may believe that you’re saving money by doing a DIY project instead of calling a professional. You may even know a few things and take pride in doing your own work. However, in most cases, DIY AC repair does not yield the desired result. In some cases, it can lead to disaster. 

There are some logical, practical, and even logistical reasons why you should hire a certified, licensed Oregon technician for AC service and repairs.

You Don’t Know What You Don’t Know

Even if you’re handy, AC repair can be tricky. Certified technicians have special training and experience to diagnose and fix problems correctly. Trying to fix it yourself could make things worse because you may miss hidden issues you didn’t know existed.

Hiring a Certified HVAC Technician Can Prevent Problems

Certified technicians understand local building codes and HOA guidelines, ensuring your repairs are done correctly. If something goes wrong, like a code violation or a lawsuit, they can handle it. Plus, if there’s a warranty issue or dispute, their certification gives you peace of mind.

You May Void Your Warranty or Insurance Policy

Messing with your AC yourself could void your warranty or insurance policy. Certified technicians know how to work within these guidelines, protecting your investment and keeping you covered. Some manufacturers only allow approved certified professionals to work on certain air conditioners

You Won’t Get the Result You Want

Fixing your AC on your own may seem like a good idea. However, without the right skills and tools, you might not get the results you want. Certified technicians have the expertise to get your AC working efficiently, saving you time and frustration in the long run.

Whether you need AC maintenance services or an entirely new installation, we can help. To learn more about our AC repairs and replacements, reach out to Central Air Heating, Cooling & Plumbing today.