5 Things That Will Cause Your Air Conditioner To Stop Cooling!

Posted by Joe Strazza
Joe Strazza
Joe was born and raised in the Austin area. He has been in the HVAC industry for
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on Wednesday, 03 October 2012 in Blog

What Are The Most Common NO COOL CALLS?

Hey, Austin! During the warm months (in Texas thats April-October) Precision Heating & Air sees a variety of issues with customers central air conditioning units and we get a lot of different explanations for what the customer thinks is wrong. But what are the most common problems we face when going out to fix a customers air conditioning unit? I'm glad you asked.

5. Faulty Wiring
Improper, haphazard or uncertified A/C wiring is dangerous and a potential fire hazard. We often will come across installs or repairs that the customer tried to complete themselves, or hired a free-lance contractor, to complete. We do not advise this! You always want to have a certified NATE HVAC technician come out to service your air conditioning unit. Bad wiring often prevents the system from getting power, or can trip the circuit breaker.

4. Low Refrigerant
Refrigerant (also known as R-22 Freon or R-410A Puron) is the chemical that cools the air. Low refrigerant may indicate a leak or problem with the refrigerant system. If your air conditioning system needs to be recharged with refrigerant, typically that means there is a leak. All refrigerant leaks should be located and repaired. A low refrigerant or a leak can lead to the evaporator coil freezing up, which will take hours to thaw before a certified technician can work on your air conditioning unit.

3. Condenser Fan is not Working
Another common issue we run into is the condenser fan motor going bad. The condenser fan is responsible for transferring the heat from your home to the outside air. If the fan on the outside unit doesnít run, proper heat transfer is not taking place and the air conditioning compressor may overheat and trip the safety overload. Worse yet, it may cause internal damage to the compressor.

2. Condenser Unit is not Functional
This typically indicates lack of power, contactor problems or even a faulty thermostat.

1. Frozen Evaporator Coil
A frozen evaporator coil often indicates a problem with the airflow, such as restrictions caused by dirty air filters or blocked return air ductwork. Make sure to change your filters often. Not sure how often that should be? You can find all that out here. (Insert link to blog about air filters) Frozen indoor coils could also be caused by low refrigerant, but that can only be determined by having a certified technician come out and search for a leak and test the refrigerant levels.

So there you have it, Austin. The top five reasons things go wrong with your air conditioner. The only one that you really can fix yourself is when the evaporator coil freezes. Try changing your filters and leaving the unit off for 3-4 hours to let it thaw. If your house doesn't start cooling down after that, it's time to call in the pros! Never hesitate to call Precision Heating & Air. We deliver service you can trust 24 hours a day, seven days a week with no additional costs for after-hours work. Stay cool, Austin!

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Joe was born and raised in the Austin area. He has been in the HVAC industry for over 12 years now. He has always been a self-starter and incredibly motivated individual and started working at a young age. Joe holds many licenses and certifications including being registered and licensed with the state (TACLB29215E) and the Rail Road Commission, being certified in LP Conversion, NATE, Manual J, Airflow Design, 410A, and a universal EPA certification. Under Joe’s direction the company was awarded the Robert Madden Growth Leader award for 2011, which indicates the top sales growth within that year. He is living his dream with a job he loves and a beautiful wife to share his life and happiness with. When he is not working and spending time with his family, he enjoys riding dirtbikes/Racing Motocross. He also enjoys rebuilding them.


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