Posted 1/24/2025 10:40 (#11071480 - in reply to #11071399) Subject: RE: Ford heater fan
Middlesex County, Ontario
Usually "high and off" is what a bad resistor does. "Low and off" means that at least part of the resistor is still working, and something that's not the resistor is causing high not to work.
I'd say that the most likely culprit is the fan speed switch. I say that now, and I would have said that right from the start.