AC System Blowing Hot Air? Here’s How to Fix it

The rising temperatures that mark the start of summer will make homes uncomfortable without an efficient AC unit. With a properly placed AC unit, you can maintain cool temperatures all season long and enjoy the comfort you deserve.

If you wake up in bed drenched in sweat, it can be a sign that your cooling system isn’t working correctly. One of the most usual issues is when your air conditioner blows heated air. There are several reasons why this could occur, so if you need a professional diagnosis, call Bruin’s Plumbing & Heating Ltd. today!

What To Do If Your Air Conditioner Is Blowing Warm Air, And What Could Be The Cause?

Low Refrigerant

The refrigerant may be leaking if your air conditioner isn’t cooling. Hissing or bubbling sounds, as well as ice buildup on the outer unit, are some warning signs that you need AC repair in Red Deer, Alberta, Lacombe, Sylvan Lake, and surrounding areas.

Solution: Call your technician as soon as possible if you think a leak is to blame for your air conditioner’s low refrigerant levels. 

Unclean Air Filters

Cool and warm air flow is obstructed if the filter is clogged and dusty. The evaporator coils then freeze, causing your home’s AC to blow heated air.

Solution: An AC that uses clean filters can continue to work smoothly for longer. We recommend changing your air filters every one to three months, depending on how clogged it gets.

Issues With Thermostats

Warm air from your air conditioner may be because of thermostat issues. If the issue continues, you might need to have your thermostat replaced or recalibrated during an AC repair in Red Deer, Alberta, Lacombe, Sylvan Lake, and surrounding areas.

Solution: Consider using a programmable or smart thermostat as a fix. 

Dirty Condenser Coils

The condenser coils of the outdoor unit collect dirt and grime over time. As a result, heat transfer is hindered, making it harder to cool a house.

Solution: To give your condenser enough breathing room, clean the outdoor unit frequently. Clear the vegetation and debris from around the unit, then hose any dirt off.

Obstructed Drains

Clogged drains are another factor in air conditioners spewing heated air. If this pipe becomes clogged with dirt or debris, the water may back up and harm the AC system.

Solution: You can usually clear clogs on your own. If the obstruction is evident when you look at the drainpipe, you can manually clear it while wearing safety gloves. But if you’d prefer a professional, Bruin’s Plumbing & Heating Ltd. can perform this service during a maintenance or tune-up appointment. Contact us today!

Gap In Ducts

The cool air is distributed through ducts installed in your walls and ceiling. If the ducts have gaps, the air leaks into the walls, and lowers the efficiency of your AC unit.

Solution: Call your AC expert so they can check the ducts, make any necessary repairs, and seal any gaps.


Finding the root of the issue when your air conditioner blows warm air might be difficult because your cooling system is a delicate and complicated piece of technology. That’s why we recommend getting in touch with our experts at Bruin’s Plumbing & Heating Ltd. We’ll help you find the issue and repair it.

Call us at 844-582-1763 to schedule an appointment for any AC related issues as well as boiler installation in Red Deer, AB, Lacombe, Sylvan Lake, and surrounding areasWe provide various services including air conditioning, heating, indoor air quality, plumbing, and more!