Common Air Conditioning Problems and How They Can Be Fixed

I lived my whole life with the comfort of air conditioners. Growing up, it was mostly a window unit, but we shifted to split air conditioners and I have had central air conditioners at work. They all had one thing in common… they had to be serviced every so often by professionals.

It’s not always the unit’s fault either. There are things you can do to keep your air conditioners running smoothly. Here are some common air conditioning problems and how you can deal with them.


This is especially the case with air conditioners that have outdoor units on ground level. Sometimes, a lot of debris and fuzz can get caught up in its coils. It can affect your air conditioner’s performance. If it’s really bad, you can brush out most of it.

Otherwise, just use a hose in an angle to clean it up. If you are using a brush, just be careful not to damage the coils. I would recommend against using chemical cleaners as they tend to eat up the coils.


Air conditioner services get calls for this quite often, especially during times when the weather heats up. If your outdoor unit is nonresponsive, it can be an electrical issue. Head on over to your breaker box and make sure the breaker is not tripped.

If you are unsure, you can turn it all the way off and turn it all the way back on so you can be sure the breaker for the air conditioning is on. Another thing you can do is check the fan on the inside unit. This is what blows the cold and hot air. So, you better make sure the cord is plugged in.


Simply check your filters. They need to be cleaned or replaced and a lot of people don’t do them. Cleaning filters are easy as all you need to do is vacuum it and make sure it’s clean. It’s very common for filters to get messy with dust and hair.

Your unit can’t even breathe with all that blocking the filter. So, make sure to keep your filter clean or change them. Since it has to be cleaned or replaced at least every month, make sure you know where your air filter is. It can be in the furnace or the return air vent.


Check your thermostat and make sure it’s batteries have charge. Not surprisingly, a lot of people don’t even know their thermostat uses batteries. In most cases, you can pop it out from the wall with the notch on the top.

If your thermostat is hardwired, then they don’t need batteries but so many people call air conditioner repair services to get their air conditioner serviced only to realize all they had to do was check their batteries. You can also make sure if your thermostat is set to cool and not heat.


Your air conditioning not cooling? There are some things we do that cause problem with our air conditioners. It’s not always a problem with the units themselves.

  • Make sure the outdoor unit has proper air flow with no obstructions. Keep its top clear as well. A lot of people cover it over the winter and forget to remove it.
  • Closing off unused room doors and vents to save energy can create a negative pocket of pressure and affect your unit.
  • Keep your supply and return air vets clear from any obstructions.
  • Overuse during harsh weather conditions.

So, there you have it; you can usually deal with most problems yourself or prevent it. However, if you can’t figure out what’s going on, just get in touch with professional air conditioning experts to get your unit looked at and repaired.

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