Does anyone know how to remove heater cover, I need to see if I am getting power to the switch and check fan motor, circuit breaker is good, took out all screws on cover, removed small Allen head in fan knob. I cannot figure out how to get the cover past the other 3 knobs. There are no Allen head screws in the other three knobs.
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m1083a1, heater fan switch
- Thread starter mrjeffa
- Start date
- 233
- 559
- 93
- Location
- Strafford, NH
From past experience….. and not necessarily on these trucks. But as control knobs go, if it has an Allen set screw, loosen it. If a knob doesn’t have a set screw it’s friction fit and you just pry it off.
Just be gentle! They’ve been there for a long time.
Just be gentle! They’ve been there for a long time.
- 1,576
- 527
- 113
- Location
- Greenback, TN
I just repaired a heater switch today. What Tomline said, but there is a locknut under the knobs and it helps to loosen the jam nuts first. My switch had a broken off terminal, possibly from corrosion of the ferrous terminal after heating from the voltage-dropping resistors (mounted on the back of the switch). I ground the rust off the terminal, etched it with some soldering paste, and soldered on a short pigtail to go to the wire that broke off.
My switch was moving a little when switched, the whole switch moving, which would work the wire, which broke.
My switch was moving a little when switched, the whole switch moving, which would work the wire, which broke.
- 233
- 559
- 93
- Location
- Strafford, NH
Forgot about that style…..