Question about Heating & Cooling
Hi, If you have what is called a heat pump, the outdoor unit is supposed to run. It has a reversing valve which reverses the flow of refrigerant and the indoor unit becomes the condenser and the outdoor becomes the evaporator coil. Now, if you don't have a heat pump and the furnace is gas fired, then the control wiring or thermostat is calling for both to come on. Control wiring has to be touching together somewhere and bringing on both. Look over the exposed stat wire outside if you have a dog that may have chewed the wires, I have seen this happen. If all wiring looks good, then the stat is faulty and must be replaced. Make sure you don't have a heat pump first, as the fan, compressor, and all will run on heat and cooling. I hope this will solve you're problem, please let me know, I would like to hear back. Sincerely,
Posted on Nov 20, 2009
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Posted on Jan 02, 2017
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