AC Not Blowing Cold Air, AC Troubleshooting

(HAZARDOUS) Air conditioning repair CAN BE DANGEROUS so make sure you are familiar with safety precautions before you proceed. DISCLAIMER: All power must be shut off and capacitor discharged before repairs are made. We accept no responsibility for damages to you or your property. All troubleshooting testing &repairs are at your own risk.

Did your AC stop working? Is your air conditioner not cooling or blows hot air? If your AC is not blowing clod air and the fan in the compressor unit outside fails to start you may have HVAC capacitor problems. Do you notice the HVAC capacitor top bulging or maybe the impedance of the capacitor dropping? These are all signs that you likely need to replace the capacitor located in the compressor outside.

Air conditioner capacitor cost depends if you are prepared to change it yourself or if you should have a professional. The HVAC capacitor itself is relatively inexpensive (up to $50) but may cost much more to have a professional troubleshoot, test and replace it ($150 to $300 or more…) depending on the time of year and the time of day. It will be very expensive if you wait until the middle of the night at the hottest time of the year. AC capacitors don’t just fail quickly; they deteriorate over time and then fail. As they deteriorate they put more stress on the fan motor and compressor. If your air conditioning system is over 5 years old check the ac capacitor annually and have a replacement purchased and ready to be installed as the signs appear. If it is over 10 years and hasn’t failed yet just go ahead and change it along with the contactor. Of course this assumes you have the training and equipment to test and replace it which this video shows. A DIY multimeter will last a lifetime and cost less than $50 and can be used for multiple electrical troubleshooting problems.

Well, you know your air conditioner needs repair you want to fix your own AC it may be necessary to test and replace your ac capacitor. This video is part of a series on HVAC troubleshooting guide. This video is about air conditioner troubleshooting and how to troubleshoot and replace the HVAC capacitor. This video shows the process and how to check capacitors. This video also works for heat pump troubleshooting of the relay also.
Also see our video on How to Troubleshoot, Test & Replace an AC Contactor – http://www.youtube.com/watch?v=OaclfP-bnMU

Don Harris has over 40 years of experience heating and air conditioning. This video is good for the: DIY, How to, Fix it guy. http://dependableservices.com/