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The Home Depot

Why is My Air Conditioner Blowing Hot Air?

Pro Referral > Home Guides > Heating & Cooling > Why is My Air Conditioner Blowing Hot Air?
Why is My Air Conditioner Blowing Hot Air?

Air conditioners are an intrinsic part of our daily lives these days. Comfortable indoor air conditioning is a must especially to counter the hot and sweltering summer months. However, what happens when air conditioners do not function in the desirable fashion? What if your air conditioner starts blowing hot air? Needless to mention, it could be an essentially worrisome experience! However, there is little cause for worry. Often, the problem arises because of simple malfunctions or lack of necessary precautions, and can be fixed quite easily. So, it is important to take action as soon as possible to nip the problem in the bud.

  1. Inexpensive, non-certified units may cost less at the outset, but you would end up paying much more on skyrocketing electricity bills and recurrent damage repairs.

    1.Begin by Buying Right

    Although functional problems with air conditioners are common, choosing the right model when you are making a purchase could go a long way in settling the problems considerably. According to the official website of the Green Energy Efficient Homes, procuring government certified Energy Star air conditioners not only ensures lower energy bills, but also provides for efficient operation of the unit with rarer malfunctions and breakdowns. Inexpensive, non-certified units may cost less at the outset, but you would end up paying much more on higher electricity bills and recurrent damage repairs.

  2. 2.Why Would Air Conditioners Blow Hot Air?

    Some common glitches that might be responsible for the hot air blow could include:


    1. Check the Settings First— Often, a simple human error in the AC settings could be the reason for a hot air blowout. You might have flicked the selector switch to “heat” instead of putting it on “cool”. If such is the case, the heat mode sets on and you automatically receive warm air from the AC. All you need to do is to switch it back to “cool” mode again to resume proper functioning.


    2. The Condenser and Compressor—If you have already checked the setting and it seems fine, it’s time to inspect the condenser and the compressor, both of which are present in the outside unit. Ascertain whether the outside power supply has been switched on. Without it, the system would function from the inside handler, but wouldn’t cool! Check upon air flow restrictions if any. You also need to check if the condenser coils have been blocked on account of dirt and debris accumulation. This could have a serious impact on cooling. In fact, cleaning condenser coils needs to be a regular activity during the summertime.


    3. A Clogged Air Filter—Although a dirty air filter may not be the primary cause of hot air blowout, it might be significantly responsible for a major compromise in cooling. A new air filter comes cheap and you can actually remove the old one and replace it quite easily. However, if you do not clean or replace your filters regularly, the dust that emanates from it can actually clog the condensing coils. Besides, this dust could also end up being the cause of serious illnesses like colds, dust allergies, asthma and so on.


    4. Refrigerant Problems—Problems in the compressor or leaks could cause refrigerant related problems that might lead to complete stopping of cool air. This would primarily occur on account of reduced refrigerant charge. You might also notice a deposition of ice on the condensers both in the exterior or interior unit. However, these problems are best addressed by professionals. Unless the compressor needs to be replaced completely, this would be an inexpensive repair.

  4. 3.Seeking Professional Assistance

    If a self-assessment isn’t helping in arriving at a treatable cause for the problem, it is essential to seek professional assistance. There are numerous AC servicing companies ready to offer prompt services whenever you need them. However, considering that the fate of your cooling system could be at stake, it is always important to hire a proficient and experienced service provider. Fixing problems with your cooling system isn’t a hassle at all, just plan your steps ahead and execute them sequentially to properly handle the issue.

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