Re: heater resistor
Fan speeds are controlled through a 3 step resister coil. When the fan is running in high speed it bypasses this resister and the fan gets a full 12 volts to the fan motor. If the fan has stopped in high speed only, check the fan relay. If its starting and stopping I would look at the speed switch. good luck
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Trey
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72 Short Step
57 "big window" short step
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