KS2506
Junior Member
- Joined
- Dec 15, 2018
- Posts
- 20
- Reaction score
- 5
- Location
- SW Kansas
- First Name
- James
- Truck Year
- 1982
- Truck Model
- K1500 Suburban
- Engine Size
- 350
New to the forum, so hope this post is in the right spot. Having heater problem, started by blowing the 20 amp fuse when on high speed. Have replaced everything, switch, relay, resistor and blower motor. Will run on lower speeds, but switch to high and blows even a 30 amp fuse. The vehicle originally had air conditioning and was removed because no one could keep it working properly. The switch has the off position where the fan motor runs on low unless you disconnect it and then 3 more positions. I believe this the correct switch. Have changed relays twice. Would it be possible I am getting the wrong relay? Or could the relay plug in be bad? Any help would be greatly appreciated.