Section 12-02: Heating and Defrosting | 1996 F-150, F-250, F-350, F-Super Duty and Bronco, F-Super Duty Motorhome Chassis Workshop Manual |
The thermal limiter in the heater blower motor switch resistor (18591) serves as a temperature-sensitive fuse. The thermal limiter cannot be replaced; the entire resistor should be replaced whenever the thermal limiter is open. Do not install any resistor that does not contain a thermal limiter.