Fan blower only works on high speed....
I have the Itasca detailed below, and lately has developed an issue where the dash fan will only work on the high (noisy!) switch setting. After starting the engine (Chevy workhorse 8.1 engine chassis...
Forum Discussion
fourmat wrote:
with your fan switch in the lower settings do you have 12V to the resistor if you do then replace the resistor if you don't then it is the fan switch or wiring.
The fan switch seemed to provide 12v to the resistors no matter which setting it was on. I think I'll just replace the resistor assembly first as they are not that expensive ($12 vs $40 for the switch!). The black spot on the switch did NOT appear to be a burned area, but just grease or some fastening material.
Thanks to all for the help....I'll let you know the outcome!
