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A-Avis Home Services Plumbing, Heating & Air Conditioning, Inc. Blog

Why Isn’t My AC Blowing Cool Air? 

family-cooling-off-with-electric-fansSummer has officially ended… as of last month. Even if the weather outside here in Riverside doesn’t seem to act like it.

It’s no secret that we still need to use our air conditioners until November, at least. But what if your AC doesn’t think so, and it decides to take a vacation? Namely, that it stops blowing cool air (or stops blowing air at all).

While there are a couple things you can do to fix this issue, you might have no choice but to call in for repairs. We’ll go over a few reasons why your AC might be acting this way and what you should do about it.

Thermostat Settings

If you’re lucky, your air conditioning problems might be due to nothing more than an improperly configured thermostat. It really could be that easy.

Check to make sure that your thermostat is not on the ON setting. This means that the blower fan will be spinning, even if the air is not being cooled. This means the AC will sound like its running constantly while only sometimes actually making the room feel cool.

What you want, instead, is to set it to AUTO. This ensures that the fan only comes on when the cooling functions are on.

Blocked Air Filter

It’s also possible that your AC could simply need a new filter. The air filter prevents dust and dirt from getting into the sensitive components of the AC. Of course, there comes a time where the filter must be replaced, otherwise, it will deprive the AC from getting any air.

If the air filter goes unreplaced for too long, it can lead to more than just a loss of airflow: frozen refrigerant coils, short-cycling, and increased energy bills.

If this is the case, all you must do is install a new filter. If you do this and still find that your AC is having problems, stop running the system for now and call an air conditioning repair company in Riverside, CA.

Refrigerant Leak

Your air conditioner—whether it’s a central air system or a ductless mini-split—relies on refrigerant. Without refrigerant coursing through its veins, the heat transference process that makes AC possible just won’t happen. Leaks are the biggest culprit for lost refrigerant, and they need the immediate attention of an expert.

Leaks can start small and get gradually worse, which can create a range of issues affecting airflow:

  • Frozen Coils: A refrigerant leak can prevent the evaporator coil from absorbing heat, thus causing it to become so cold that it freezes. This will then prevent cool air from being blown into your home.
  • Compressor Failure: If you hear various chattering, rumbling, or clicking noises when operating your AC, a failing compressor could be to blame. Compressors can go bad if the refrigerant isn’t balanced, and that will result in a loss of cool air.
  • Periodic Cooling: One leak doesn’t render your system completely useless—which just makes them more deceptive. A leak can cause your system to work adequately in lower temperatures but fail entirely in the higher temperatures.

Can’t figure out what’s causing your AC problems? Contact A-Avis Home Services Plumbing, Heating & Air Conditioning, Inc. today to schedule a service!

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