Mechanics

FAN WON'T BLOW INSIDE CAR ON HEAT OR AC

2000 Mercury Marquis • 6 cylinder Automatic •

2000 mercury marquis heater fan will not work
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Amy
November 24, 2010.



Have you checked to see if there is power to the blower motor? Does the fan work on any speed?

The fan does not work at all. Blower motor has been changed. Would it be the switch?

Tiny
Amy
Nov 24, 2010.
I would recommend working backwards to locate where the power is lost. Usually the switch is fine. Problems usually are from the resister or the relay. Trace the power supply back from the motor to see where it is lost. My guess is the blower motor resister or relay.