Question about 1998 Chevrolet Astro

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Motor heater not working on low and sometimes on high

I have a 1998 Astro Van, and the motor heater is not working. One solution was to change resister, the other was the motor. Now my question is where is this stuff located? Where do I go to find a diagram?

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  • yadayada
    yadayada May 11, 2010

    what is a motor heater?

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Blower/Heater Switch Operation: Motor heater not working on low and sometimes on h - 0900823d8004c694.jpgThis electrical switch, located in a fuse or breaker protected circuit, controls the rpm of the blower motor through a series of control relays and a rheostat. Sometimes the A/C compressor clutch is energized by this switch.

Posted on Feb 27, 2009

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