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Home » Public Forums » GMCnet » Dash air/heat Blower Not Working - Blowing Fuses
Dash air/heat Blower Not Working - Blowing Fuses [message #371291] Sun, 23 April 2023 14:26 Go to previous message
Carl S. is currently offline  Carl S.   United States
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma:
Senior Member

On our last trip, I noticed that the dash blower was not working. After looking into it, I discovered the fuse was burned out. I replaced the fuse and the blower came on, but the fuse blew when I switched it to the high position. I think it is supposed to be a 25 amp fuse and the one I put in was a 20 amp, so I tried a 30 amp (i didn't have any 25s), same result. The blower motor is fairly new so I don't think that is the problem.

I'm guessing it is either a bad switch or a bad blower relay. Any ideas? Am I on the right track? I DID check the wiring on the blower relay, and didn't see any shorts, so I don't think it's a wiring issue.

Thanks


Carl Stouffer '75 ex Palm Beach Tucson, AZ. Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
 
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