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5 Most Common HVAC Problems and How To Fix Them

5 Most Common HVAC Problems and How To Fix Them

Are you sweating? Why is the temperature rising? In the rush and bustle of daily life, you may have overlooked your home's most significant player – or equipment – the air conditioning unit. Your air conditioner stopped operating because it is overworked and under-serviced. Treat HVAC problems as soon as possible to avoid excessive temperature swings and to reduce the danger of flooding. The excellent thing is that the most frequent AC problems can be resolved or avoided in a matter of minutes. Let us look at the five most frequent air conditioning problems, as well as their solutions.

The Air Conditioner Is Not Functioning at All

When your AC goes down without notice, there are some things you can do to diagnose and repair the problem before calling an HVAC professional. First, check the batteries in your thermostat. Changing batteries is an easy-to-miss household task. Thermostats are often overlooked due to their "place it and leave it" nature. Replace the batteries if they are dead. Then, ensure that your thermostat is set to "cooling" and the desired temperature. If everything else fails, you might have to reset the circuit breaker on the air conditioner.

Your Air Conditioner is Blowing Hot or Warm Air

Few things are more inconvenient than an AC unit that only provides lukewarm air. Before you do anything, double-check that the thermostat settings haven't changed. The first thing you can do if your thermostat settings are proper is to replace your air filter. AC problems such as frozen coils are usually caused by old, blocked air filters.
If the air filter is not the issue, you may be short on refrigerant. Feel the biggest copper wire that leads to the system's condenser to see if this is the case. Your levels are excellent if it is wet and chilly to the touch. If it lacks either one of those characteristics, the refrigerant level is low. You should call an HVAC specialist to refill or repair the refrigerant reservoir. 

You Have a Leaking Unit

HVAC units do leak some fluid and condensate, but excessive leakage indicates a variety of issues with many remedies. Usually, the condensate line is clogged. Unclogging it is simple enough for a DIY repair, but be to use the manufacturer's guidelines. If you have any doubt, you can reach out to one of our trained HVAC professionals.

Uneven Temperature Distribution

Have you noticed that one section of your house is warmer or colder than another? An imbalanced air system might be the source of the problem. Many factors determine which sections of your home will receive priority from the HVAC unit. Some of these include the size of the room, the air vent positions, any windows, and the temperature outside. Make sure to cover bigger windows with sun-blocking drapes or blinds. From there, you should inspect each room's insulation or add dampers to regulate your HVAC. This will distribute part of the air circulation to make every room equal in temperature.

Your Air Conditioner Is Quite Loud

You should feel if your HVAC is functioning, but you should not have to listen to it. If your air conditioner sounds like it's working hard to keep you cool, it is. Failing air conditioners generate a variety of noises that are hard to recognize if you aren't a professional. Squealing and screeching can be a sign of a defective belt. Rattling noises might be a problem with the motor, fans, or compressors. Aside from checking the thermostat and removing debris from near your outside unit, suspicious noises need an HVAC expert.


The best approach to avoid frequent HVAC problems is to have a Robert Bair HVAC professional maintain and repair your HVAC. Don't put it off until it's too late; a basic, affordable repair may become a big one if left unattended.

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