Furnace will not stop running
 

What could be the problem

BigJim Moved thread from Electrical to HVAC

are you melting or is it just the supply fan.:huh:..if your swetting pull the stat off the subbase lets hear back

If your too hot, remove one of the thermostat connections from the furnace.
Dis connecting "R or W" will show you that it's a thermostat or thermostat wire circuit problem if the burners then shut down..

If it's just the fan that won't stop, then a overheating furnace with a tripped limit is a common cause. Dirty filters?
Thermostat fan control on or shorting?

Let us know.