how to determine bad switch or bad blower motor

Asked by Aug 20, 2014 at 02:54 PM about the 2000 Mercury Grand Marquis

Question type: Maintenance & Repair

How can you tell the fan switch is good and the motor is bad and vice versa

1 Answer

3,025

unplug motor and run power directly to it and you will know if it still works.if you cant control your blower speed it might be the risitor thats burnt out.

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