Blower Motor / Resistor
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Cargo Master
Joined: Jul 2010
Posts: 2,054
Likes: 10
From: Washington
Blower Motor / Resistor
Hey all,
My fuse box received some water, then froze a couple winters back. Had some corrosion on the driver side top of where the windshield seats which lead to the leak. Took it apart and dried it out and it worked for a while then crapped out, GEM looked immaculate so i just swapped out my fuse box. Truck fired up and it runs which is great.
However, my blower is not working now. Fuse #22 (10 amp), and Fuse #24 (10 amp) in the cab are both good. Fuse #23 (40 amp) under the hood also appears to be good.
After some research, it looks like I may need a new blower motor, or resistor, or both. Does that sound right?
Here is the resistor I see people have purchased. This a good one?
In this thread, the original poster bought Motorcraft blower, and wheel. It seems the consensus is that motorcraft is the way to go for these:
https://www.ford-trucks.com/forums/1...tor-***-y.html
Should I buy resistor, motor, and wheel?
Any advice would be appreciated. Winter has arrived here in Montana and defrost is crucial for me to be able to use the truck.
Thanks.
My fuse box received some water, then froze a couple winters back. Had some corrosion on the driver side top of where the windshield seats which lead to the leak. Took it apart and dried it out and it worked for a while then crapped out, GEM looked immaculate so i just swapped out my fuse box. Truck fired up and it runs which is great.
However, my blower is not working now. Fuse #22 (10 amp), and Fuse #24 (10 amp) in the cab are both good. Fuse #23 (40 amp) under the hood also appears to be good.
After some research, it looks like I may need a new blower motor, or resistor, or both. Does that sound right?
Here is the resistor I see people have purchased. This a good one?
In this thread, the original poster bought Motorcraft blower, and wheel. It seems the consensus is that motorcraft is the way to go for these:
https://www.ford-trucks.com/forums/1...tor-***-y.html
Should I buy resistor, motor, and wheel?
Any advice would be appreciated. Winter has arrived here in Montana and defrost is crucial for me to be able to use the truck.
Thanks.
Butt-Head
Joined: Apr 2004
Posts: 9,437
Likes: 2,925
From: Reed Point, MT
If the resistor is bad, buy a resistor AND motor.
The resistor block includes a thermally-protected fuse that opens (permanently) when the motor draws too much current or seizes.
If you have power to the motor and ground into the resistor but not out....then that fuse is blown.
The resistor block includes a thermally-protected fuse that opens (permanently) when the motor draws too much current or seizes.
If you have power to the motor and ground into the resistor but not out....then that fuse is blown.
Thread Starter
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Cargo Master
Joined: Jul 2010
Posts: 2,054
Likes: 10
From: Washington
Thanks everyone for the responses. Just as a follow up.....
I was hesitant to swap just the resistor since the blower went from working just fine with all speed selector positions functioning properly to completely not working. From what I've read, when the resistor is the issue, the blower typically still works on full blast but the lower speeds wont work. I went ahead and pulled the blower motor and hooked it up to 12v directly and it immediately worked. So i put it back in, then changed out the resistor. Everything works great now!
Hope i get another 25 years out of my OEM Blower motor = )
I was hesitant to swap just the resistor since the blower went from working just fine with all speed selector positions functioning properly to completely not working. From what I've read, when the resistor is the issue, the blower typically still works on full blast but the lower speeds wont work. I went ahead and pulled the blower motor and hooked it up to 12v directly and it immediately worked. So i put it back in, then changed out the resistor. Everything works great now!
Hope i get another 25 years out of my OEM Blower motor = )
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