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Inside controls off.outside fan runs even when inside Heat is on

Asked Jan 4, 2009, 10:58 AM — 2 Answers
My outside unit's fan still runs even when inside controls are all set to off, or even when inside heat is being used.

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Stratmando's Avatar
Stratmando Posts: 10,434, Reputation: 2520
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#2

Jan 4, 2009, 11:27 AM
If able and qualified, remove 1 control wire from Compressor contactor, if it continues to run, contactor is physically stuck/welded, if removing 1 wire and it goes off, then you may have 2 wires in your thermostat wiring touching, or at thermostat, last place would be in air handler.
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hvac1000's Avatar
hvac1000 Posts: 14,539, Reputation: 2381
Heating & Air Conditioning Expert
  
#3

Jan 4, 2009, 11:44 AM


Also if you have a dog or other animals in the yard check the low volt cable that goes from the house to the unit. Sometimes they like to chew on them.
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