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Humming noise repeats every few min. evaporator fan runs constantly frig still cold

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It sounds like a bad: 

  •           start switch (on the side of the compressor) or
  • ·        compressor itself

the start switch clicks  off usually when the compressor is pulling too many amps or the compressor is overheating. if the compressor is not even running then its probably not overheating.
·                                 so either the compressor is pulling too many amps (bad compressor) or the start switch is bad and cannot handle the amps required to start the compressor.
if you already checked this and think it is a different problem then let me know, i will help you figure it out. 
Mike  


Posted on Jul 15, 2008

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