Why is my fan not turning off?
The most common reason that your Air Conditioner fan won’t turn off is because a stuck relay keeping the circuit closed. Double-check the thermostat and make sure the fan is not set to ON, and that it still runs when switching it to AUTO or OFF (if your thermostat has an OFF setting).
Why is my furnace fan blowing constantly?
When your thermostat is set to AUTO, your furnace fan should blow only when your furnace is in the middle of a heating cycle. But if your fan runs constantly, regardless of whether your furnace is heating, that’s not normal. There’s a shorted thermostat wire. There’s a shorted wire at the fan limit switch.
Why is my fan running when my thermostat is off?
Over time, relay switches can become stuck or damaged, preventing the thermostat from communicating with the fan. Essentially, this means that the fan isn’t receiving the commands you’re relaying to the thermostat. So even if you turn your AC off, the fan will continue to run.
How do you reset a furnace blower motor?
How to Find and Reset your Furnace Motor Blower
- Step 1: Turn off the power to the furnace.
- Step 2: Remove the blower compartment cover.
- Step 3: Make sure the blower is completely cooled off.
- Step 4: Locate the reset button.
- Step 5: Press the button in (assuming that this is your issue and that the button has popped).
Why does my furnace fan not turn off?
If your furnace fan won’t turn off, you most likely have one of these 3 problems: Your furnace fan limit switch is set to “manual override” The fan limit switch is faulty and needs to be replaced. There’s a problem in your thermostat wiring.
Is it OK to run furnace fan constantly?
Running your furnace fan all the time isn’t exactly a bad thing. In fact, there’s no need to worry about the fan wearing out or breaking down because it’s designed to run continuously, and there’s an array of benefits connected to this. Here are some of them: Better circulation of heated and cooled air.
Why does my heater keep running after it has reached the set temperature?
When your furnace keeps running after the temperature has been reached: Check the blower motor – Your forced air heating system uses a blower to push air through ducts and into your living space; sometimes, the blower runs at the same time that your furnace is heating the air, but sometimes it runs on its own.
Should furnace fan run all the time?
Even if you have a single story home, you should still run your furnace fan. Running your furnace fan will blend the air throughout the day keeping the air in your home from having noticeable hot and cold spots.
Why does furnace blower not shut off?
What to do when a furnace blower won’t turn off?
Lower the thermostat in order to stop the furnace. If that does not stop the furnace blower, switch off the thermostat. Initially, the burner will turn off and then the blower would turn off as well. In case the furnace turns off when the thermostat is turned to off, a probable reason is a thermostat that is not working properly.
What to do if the thermostat is not turned off?
In case the thermostat is turned off but does not turn off the furnace blower, then find the breaker in the fuse box or the central on and off switch on the furnace and turn it off. After that, turn the gas off as well. The gas switch must be located in front of the furnace.
When does a Furnace Fan need to run?
The fan should run when power is being supplied to the furnace. Did the circuit breakers in the circuit breaker box (or electrical panel) trip to the OFF position? Check the SSU light switch on the gray box located at the furnace to make sure it is in the ON position.
Why is my air handler fan not turning off?
Air Handler Blower FAN WON’T TURN OFF! 5 Reasons Why it Keeps Running! If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.
