Yesterday, we made a run in the Wagoneer to the mountains to pick up a Christmas tree, with no fan to blow to heat and/or defrost.
So, with that in mind, I thought I’d write up the testing procedure i used to test the heater fan today.
First, unplug the heater fan switch connection - shown here:
Attach a short wire lead with an alligator clip:
Touch the wire lead to the hot side of the battery - motor should turn assuming motor is grounded properly.
As it turned out, my fan worked, so i went back inside & started the engine, turned on the heat & fan, and it worked!
The good news is: it mustve been a bad connection. All fan speeds worked.
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