There is nothing worse than having an incredible warm day and you try to kick in your central air to find that your central air conditioning unit is only blowing warm air. It is even worse when this occurs in the middle of summer! These last couple days here in Chicago have given us Chicago natives a peek into the weather to expect this summer. I bet your home has gotten a little warm if you did not open the windows!
However, if your central air conditioning unit is not working correctly, there are a few things that you need to look at to diagnose why your central air unit is blowing warm air.
- First, you need to check your thermostat. Is cooling selected on thermostat? Sometimes, when the weather first changes, we forget to change that setting. The fan should also be set to auto. Check the wiring for the thermostat. Is your thermostat older? It may be time for a new one. If none of these things are making your central air conditioning blow cool air, go onto the next step for troubleshooting.
- Secondly, check the coils. The coils can often catch debris which will make it run hotter. Many times, you will need to use coil cleaner to get your central air conditioning to work correctly.
- The next step is to check the Refrigerant levels (if you have an older unit). Your AC may be low on refrigerant and may need a charge. Also, checks for leaks. Leaks can be repair with a sealant or replacing the pipe.
- Lastly, you should check the drain pan and the compressor.
If none of these things work, then it is time to have a reliable air conditioning repair company like Around the Town come in and fix (or replace) your central air conditioning.
Let us know what you have already checked and done. That will help us make a quicker diagnosis of your central air conditioning problem and get your home cool that much quicker!