How Do You Fix A Furnace That Won’t Stop Running?
We give detailed instructions on what to do if your furnace will keep running and will not turn off. Walk with us as we show you step by step how to fix a furnace that is not turning off and also signs that you may need a professional to help you. We hope this helps you save time and money when it comes to your home’s hvac system.
Please watch the video below
Step 1: Check to make sure the thermostat is not calling for the unit to run. Make sure the thermostat is set to “auto” instead of “on”. If the blower is set to “on” it will not turn off.
Step 2: Turn the thermostat to “off” and “auto”.
Step 3: Turn off power to furnace either at the switch or plug.
Step 4: Turn power back on to the furnace…sometimes a reset can fix the issue.
Step 5: If the furnace turns back on without calling for it to come on from the thermostat, that means something is stuck. Try to cause a vibration in the furnace (see video) to see if you can easily un-stick the furnace.
If the furnace continues to run, it may be an electrical problem and we would recommend calling in a professional.
If the furnace is running and won’t turn off and is also heating to an uncomfortable degree, you could turn off power to the furnace or if you have a runaway furnace where it continues to heat even without power, you could shut off the gas to the furnace by shutting off the furnace gas valve that should be located very close to the furnace.
