Fredrick heat pump p-tac window unit

posted by tin man on Feb 16, 2007

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When outdoor tempeture is cold, and A/C is being used,defrost thermostat locking out compressor. Only way to reset is to pull unit out of case, take thermostat in hand and warm, after doing so compressor will come back on, but will not run long in cold weather. Is there any thing that I can do to resolve the problem. I have several units doing the same thing. I have checked all the electrical, and all parts seem to be check out fine. But still the defrost thermostat is locking out compressor.

Thank You,
Greg

I have the same problem.

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posted on Nov 15, 2007

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need thermostst emerson quiet kool a c

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Solution #2

posted on Apr 23, 2007

union

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I don't believe that's a defrost T.stat but a outside air lockout. it's there to save unit from slugging refrigerant. if they don't have a low ambient kit. most are adjustable.

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