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Cool Touch Air Conditioning and Heating Blog

Clues that Your Air Conditioning Capacitor is Failing

Air conditioning capacitor failure clues can be tricky to identify without the right tools and phoenix air conditioning expertise.  Capacitors can be found in several different sizes and shapes. There may be one or multiple capacitors included in your current a/c system.  Air conditioning will have the bigger capacitors that assist the start and running of your motors. There are several motors present in an air conditioner and heater system.



A/C Capacitor

A/C Capacitor













System Motors:

  • Compressor Motor Run Capacitor:  This is the one most likely to fail first. These  are duel capacitors, which means that there are tw
    o capacitors built into one. A duel capacitor will have three terminals on the top where a single capacitor will simply have two terminals on top.
  • Outside Fan Motor Run Capacitor: That is the smaller capacitor found with or part of the Compressor Motor Capacitor. It helps start and run the outside fan that blows air through the outside coils.
  • Indoor Blower Motor Run Capacitor: Similar to the outdoor fan motor capacitor, it is a small, single (two terminals) capacitor that will help start and run the indoor blower motor.
  • Start Capacitor: Depending on the model it will include an auxiliary start capacitor that helps jump start the motors. Most are found on the compressor and are less common.

Every air conditioner manufacturer recommends routine maintenance. What you may not know is that nearly every owner’s manual and/or warranty fine print states the homeowner is required to maintain their equipment or the warranty may become void. The small investment for air conditioning repair and tune up will return big rewards. Some manufacturers require proof of routine maintenance of your air conditioner, so remember to always keep a copy of your receipts for any and all service work performed.

Click here or call Cool Touch today to schedule an appointment for service 623-584-3762.

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