Erratic Blower Motor Operation Due to Overheated Switch on Dodge D250

The blower motor may operate erratically and the blower switch operation has a sticky or mushy feeling, the detents almost non existent. Our technicians tell us that the blower switch should be removed and inspected for overheating. This is common if the blower motor is frequently operated on high speed as the current flow through the switch tends to melt internal the components. Also carefully inspect all of the switch connector terminals for discoloration due to overheating and replace as required. A poor electrical contact at the connector will also cause the switch to overheat.

RepairPal Verified
Average mileage: (–)
4 model years affected: 1990, 1991, 1992, 1993 more
4 people reported this problem
0 people shared problem details
Related Items:
The Blk/Org Wire coming out of the ignition switch to the fuse box is overheating. Problem was...
checked: fuse-ok resistor-looks ok-has varied resistance switch-ok-checked...
The fuse may blow repeatedly for the HVAC blower motor or the motor may stop working all togeth...
Removed switch, checked out ok, removed blower motor and it also checked out,found no electrici...