My 94 E150 conv van with front and rear heat/air, the front heat blower will not work. I replaced the blower resistor, but have no power to the resistor or blower. I can't find a bad fuse either. It's like the dash selector switch isn't working, but that looks like major surgery to replace !! Any help would be appreciated ! This is my DJ equipment van, and is relied upon a lot. Thanks in advance !

 

Seems like '94 was a popular year for the E150. I've attached a page from the Electrical Service manual to assist. As you'll find, there is a relay involved in all blower motor operation and the speed selector and resistor network is in the ground path for the motor.

 

Would you happen to know where the relay is, or which one it is inside the main fuse box under the brake master cylinder ?

thank you,

 

The page indicated the fuse was in the engine compartment. The relay is located on driver's side of engine compartment, deep in the corner. (see attachment)

 

GREAT !! I saw those two relays under the hood. It's good to know what they are for ! Are these available from my local auto parts stores ?

 

Those relays should be easy to get at an auto store. There are usually the same relays in another circuit that you can swap to see if it's the problem. Sometimes just tapping, or wiggling a relay causes it to start working, although if it does it should be replaced.