Motor hasseized.
on a 1990 cadallic sedan de ville after you cut the car off the blower keeps running killing the battery
AnswerIt is an Electric Blower, And it senses that the vehicle is still very warm, so it keeps running to cool the engine -Mr. Mechanic-Could also be the blower motor resistor if it wont turn off at all
The blower is drawing to many amps. Have it checked. If that's not it. your blower motor is shorted out. Om the motor to the frame.
Nothing as a furnace is scorhed air a BOILER is either water or steam and "Relief Valves" are for liquid thus either you have a boiler or your furnace is being flooded from an outside source
Bad fan relay or tstat.
The inside blower keep operating until it has used all of the cooling your compressor has done. it is the same on central heating. The fan keeps blowing until the heat changer is cooled.
You need to call a qualified heating contractor for service.
You have a short current somewhere. You have basically check all wires around the blower, temp gauge and retractor.
The blower resistor is internally shorted to power and needs to be replaced.
Disconnect the electrical connection at the blower fan motor, put a new fuse back in and see if the truck starts and runs without blowing the fuse. If so replace the blower fan motor. If the fuse still blows, disconnect the ac clutch wire from the ac compressor and try again.
I think the person means the heater blower motor and not a radiator fan motor