MY FAN FOR HEATDEF COMES ON WHILE THE KEY IS IN ...

  • Tiny
  • Anonymous
  • 2003 Ford F-150
  • 185,000 miles

My fan for heat/def comes on while the key is in my pocket, sometimes its on when I get up in the morning draining the battery.

Monday, February 18th, 2013 AT 2:14 PM

1 Answer

  • Tiny
  • hmac300
  • Expert
  • 42,069 posts

Check to see if wires behind switch are melted together, you can pull the blower motor relay to stop this temporarily. If it's melted togetherthen get it fixed so not to have a fire

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Monday, February 18th, 2013 AT 3:28 PM

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