What to Do If My A/C Stops Working

If your air conditioning system is not working or is not giving you the same comfort anymore, then there are a lot of ways to get that fixed which can save you money. There are a lot of expert DIY’s for A/C troubleshooting and repair techniques.

If A/C totally stopped working:

  • Make sure the device is still receiving power from the electric panel.
  • Try to reset the A/C’s switches and overloads.
  • It is also advisable to check on the settings of the thermostat.
  • Check the switch of the condensate overflow.

If A/C runs but is not cooling:

  • Do a power-cycle. Turn it off then turn it back on in a couple of minutes.
  • Filter might need some cleaning or replacement.
  • Ice might have clogged the coils, if there is make sure to turn ON the fan to melt the ice.
  • The condensate drain might need cleaning.
  • Of course you have to check if the outdoor compressor needs cleaning too.

Here are more things to consider after doing a DIY checkup:

Is there electricity in the house?

Often people contact HVAC technicians for assistance only to find out that the power is out in the house, or worse, in the whole neighborhood. This doesn’t give a very comfortable scenario for both client and technician, especially when it’s time to collect payment.

You can also check if there is a refrigerant leak. If so then there is not enough refrigerant to adequately move the heat out and this will result to A/C running but not cooling.

There are simple remedies on the basics mentioned above such as checking everything related to the A/C, like the main electrical panel. There could be a tripped breaker or blown fuse that caused the appliances not function well. The thermostat might not be set to cool creating a humid A/C.

Are you having your A/C serviced annually?

Air conditioning units needs to be checked, and a scheduled maintenance annually would be a great help for the longevity of its life. Of course, just like the rest of the troubleshooting procedures you can always start by checking it yourself before contacting an HVAC professional.

Do you have blinds or curtains?

Bright sunlight is a huge cause for a high temperature room and it would affect the A/C performance. Using blinds and curtains to cover the sun rays will definitely help lower the heat inside the room thus making the A/C’s performance reliable as expected.


Builder’s Heating & Cooling has been serving the heating & air conditioning needs of residential and commercial customers in Chicagoland since 1952. We would love to continue the service for you. For any troubles with your A/C get in touch with our HVAC professionals at (708) 375-5228.