Sea Breeze Parts and Technical Services

 

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Appliance Repair offers self help solutions for most appliance problems that save you money! Just login to our homepage and choose Common Appliance Repair Solutions.

Appliance Repair also offers, Free Professional Appliance Diagnosis
Couldn't find the solution to your problem in our Common Solutions area? Can't figure out how to check the items that we have identified as potential problems? Don't give up. We can still help. All you have to do is submit your question to our Diagnostic Experts. Please follow these steps to expedite the diagnostic help.

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Defrost timer used on
Many Maytag brands
Refrigerators. 10 Hour,
21 minute cycles.
 

 

How to Diagnose a Burned Out Compressor

When a sealed compressor motor has "burned out" this means that the internal wiring of the motor has become irreparably damaged: the compressor motor windings may be burned and shorted together or shorted to the steel shell of the motor, or the windings may have burned and simply become "open" or disconnected. If the motor has burned out in either of these ways it needs to be replaced.

When an air conditioning compressor has "burned out" by shorting of internal components - it will fail to start at all. This failure is detected by disconnecting all power and wiring from the unit and measuring resistance (ohms) between the motor start/common and run/common terminals. If there is zero resistance the winding is open or broken.

If you measure the resistance across a compressor winding and your meter's needle is stuck over at infinity, or "OL"/"OVER" on a digital meter, that would indicate the compressor winding is open (burned through). The same effect can be observed from simply connecting the meter to absolutely nothing.

If the resistance measured across the air conditioning compressor winding is too close to 0 ohms, it's shorted. The compressor should blow the fuse or trip the circuit breaker when power is turned back on. But watch out: we get field reports of equipment burn ups and even fires when the air conditioning circuit breaker for the compressor happens to be an old FPE Stab-Lok or Zinsco unit.

If there is resistance between the motor terminal and the motor casing, the motor has become shorted to ground internally and the unit needs to be replaced. If there is no resistance between the start and run terminals to common, but there is resistance between the start and run terminals, this means that the internal motor overload protection circuit is open. In this last case, allow the motor to cool and re-test it before replacing it.