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Vince Vespertin
Oct 5, 2008, 09:37 AM
Indoor blower and positive ventilation fans cycle on and off without being called by thermostat. I have disconnected all wiring from thermostat with same results. Problem first started with the indoor fan, now the positive vent fan does the same thing. Please help.
wheatnbarley24
Oct 5, 2008, 10:07 AM
could be a short in the thermostst wire from the t-stat to the heater, or a control board acting up