Heater/A.C. fan motor will not shut off on my 1992 buick lasabre limited

CK THE CONECTION AT THE BLOWER MOTOR

CK CONECTION AT THE BLOWER MOTOR

replace fan switch

on that motor they are prone to blowen head gaskets you need to do pressure check of the cooling system

blower motor resistor need replaced

the fan "blade" is a tubular rotating device that looks like a mouse treadmill. it can't go bad. if it is binding, free it. it is almost certainly the motor which will probably come with a new fan cage.

change blower motor you probably have something in there messing up the cylinder for the blower

It should be in the relay center right above the blower motor.

I have the same problem on a 1988 lesaber Climate control and was told to change the climate control as the was the problem. A have the climate control but have a problem to take of the cover that covers the control and the radio. If any one can tell me how to remove it I will put in the new control and see if that will stope the fann.Thanks

Check where the wiring goes into the fan motor itself.The power probably goes there first into a blower motor resister.If the resister is shot many times its the same symptoms your describing.If you dont know what it looks like you could stop at a auto parts store to see.