In case the furnace turns off when the thermostat is turned to off a probable reason is a thermostat that is not working properly.
Rheem furnace blower motor wont turn off.
On 2019 12 28 by jamie.
The solution to this problem is to replace the thermostat.
It is an older furnace and i have checked the thermostat settings.
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.
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.
Don t go calling your furnace repairman just yet though.
Section 2 if your furnace won t turn off after your set temperature has been reached.
Sometimes my blower fan won t shut off for a while.
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.