1995 Ford E-150 Q&A

1995 Ford E-150 Question: No voltage to main blower motor. Motor new & OK, fuse OK, 13.4 volts at fuse.

Wiring being the least likely, that leaves the 4 speed switch, blower resistor, and is there also a relay??? Where are the resistor/relay? -
Answer 1
Did you check the ground, how is it. -
Comment 1
When I run a single hot jumper to fan hot lead it runs full speed. -
Comment 2
So your wiring is not hot to the blower. The resistor is a ground, the relay is in the left side of the engine compartment and goes through the orange/red wire straight to the blower motor. -
Comment 3
So if the resistor is a ground, and I ran a hot lead to the motor and it ran, then the resistor is not the problem. I believe that I should next check the voltage in and out of the relay??? -
Comment 4
That sounds like a plan to me. The control unit puts b+ With the key on, to one leg of the relay should be a good ground to another. The blower fuse goes to another then when the relay trips it sends b+ to the blower. Go to bed shortly. -
Comment 5
Thanks much!!! I'll give it a whirl in the AM. -
Comment 6
10-4. Good luck. -