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01-07-2009, 10:09 PM
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what is the problem when heatpump only works on emergency he...
what is the problem when heatpump only works on emergency heat
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02-11-2009, 10:34 PM
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#2 |
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Something is locking out your compressor.
Either a saftey high or low psi switch / defrost cicuit board / thermostat failure / possible compressor failure good luck
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HVACdocAZ 
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