FAN WON'T BLOW INSIDE CAR ON HEAT OR AC

  • Tiny
  • Amy
  • 2000 Mercury Marquis
  • 6 CYL
  • automatic

2000 mercury marquis heater fan will not work

Wednesday, November 24th, 2010 AT 2:58 AM

3 Answers

  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,305 posts

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

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Wednesday, November 24th, 2010 AT 2:59 AM
  • Tiny
  • Amy
  • Member

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

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Wednesday, November 24th, 2010 AT 3:03 AM
  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,305 posts

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.

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Wednesday, November 24th, 2010 AT 1:36 PM

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