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View Full Version : House heater fan relay switch


boycow34
Nov 3, 2009, 08:53 AM
House central unit, the fan continuously runs

hvac1000
Nov 3, 2009, 03:15 PM
See if thermostat is set to automatic (auto). If set to on that is the problem. OR it could be the fan control if being used in the heat mode. Relay or circuit board if in cooling mode.