Your fan limit switch is located directly under your furnace hood and controls when your furnace blower turns on and off.
Rheem furnace blower motor wont turn off.
Don t go calling your furnace repairman just yet though.
It is an older furnace and i have checked the thermostat settings.
The solution to this problem is to replace the thermostat.
In case the furnace turns off when the thermostat is turned to off a probable reason is a thermostat that is not working properly.
If your furnace won t turn off even after your house is at or above your programmed temperature then the problem is usually more complex.
Sometimes my blower fan won t shut off for a while.
My furnace fan in my house won t turn off when my unit is off on 2019 12 28 by mod jamie perhaps there is a defective fan limit control or fan relay control switch.
A probe inside the switch monitors the temperature of the burner assembly to turn the fan on once the burners are hot and turns the fan off once the burners cool down when the thermostat stops calling for heat.
On 2019 12 28 by jamie.