Friday, September 23, 2011

Will a heat pump thermostat work on a gas furnace?

we have a gas furnace and the thermostat has only 2 wires a black one and a white one...we are having an issue with the furnance comming on to heat up then shuts off then comes on and sends cool air then comes on and sends heat again...how can we stop this and just get it to heat the house regularly/Will a heat pump thermostat work on a gas furnace?You could twist the black and white wires together and see if the furnace will then stay running with continues heat.

If it does it's the thermostat, if not it's a problem with the furnace.

Sounds like maybe a limit switch shutting the burner down after a short run time then resetting and bringing the burner back on. Check for plugged filter or bad fan motor.

Could also be some other safety shutting down the burner.

Other than a filter call in a tech to properly diagnose the problem.Will a heat pump thermostat work on a gas furnace?The furnace should turn on until it goes off on H/L or the t stat is satisfied. Once it cools down the H/L closes and it turns back on. But if your blowing cold air then your fan limit switch is not working. Usually the H/L and fan limit are the same switch. Have a professional look at it and change the switch if needed. If it is the t stat just buy a new one for just heat because a Heat pump t stat has more than you need if you just have forced hot air.Will a heat pump thermostat work on a gas furnace?You could have a thermostat problem, but I bet that's not it.

Sounds like an airflow problem or a bad limit. Get someone who knows about this to check out the system and get it fixed.Will a heat pump thermostat work on a gas furnace?No.
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