Top Six Reasons Why Your AC Is Blowing Hot Air

With summer weather on its way, Kalamazoo residents are working hard to ensure their air conditioners are ready to go. But, what happens when your AC is blowing hot air? What’s the cause? And, more importantly, what’s the solution? Rest easy, the experts at Aire Serv of Kalamazoo are here with answers! Here’s a few reasons why your air conditioner may not be functioning properly.

Your thermostat is set incorrectly

When troubleshooting your AC unit, start with the obvious: the thermostat. Is it still set to ‘heat’? Or is the fan set to ‘on’? Both of these settings can cause your AC to blow hot air. To correct it, simply toggle your settings to ‘cool’ and set the fan to ‘off.’

Your air filter is clogged

One of the most common reasons for AC issues is a clogged air filter. Clogged filters prevent air from properly circulating and can make your AC system work harder and less efficiently. Depending on your household, we recommend changing your air filter every 60 to 90 days.

Your evaporator coils are dirty

If your evaporator coils are dirty, your AC system won’t be able to properly cool the air, which can result in it blowing uncomfortably warm air. And, while you can theoretically do it yourself, cleaning your system’s evaporator coils is usually best left to a professional.

Your refrigerant is low or leaking

Discovering that your AC unit is low on refrigerant is usually an indication that there’s a leak somewhere. A good way to diagnose this problem is to look for ice crystals on the unit’s evaporator coils. If you see them, it’s essential to call a professional to correct the issue.

Your outdoor unit is blocked

During the winter, debris can build up on or around your outdoor unit. And, in the spring, vegetation can grow into and around it. If a visual inspection of your outdoor AC unit reveals debris or overgrowth, be sure to clean it, as this could be the reason your AC is blowing hot air.

You may need an AC tune up

If you’re looking to keep your AC from blowing warm air, reach out to your Kalamazoo Aire Serv team today to schedule an AC tune up. We’ll work with you to inspect your system and recommend actions to improve its performance. And, don’t forget to ask about our Aire Serv Advantage Plan, which is a surefire way to avoid major furnace and AC issues.