Blower fan

2004 MERCURY MARQUIS
75,000 MILES • 4.6L • V8 • 2WD • AUTOMATIC
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WESTRUCK
  • MEMBER
  • 55 POSTS
The car has Electronic Auto Temperature Control.When the key is in the run or accessory position the blower fan stays on.The control panel position button is off.What could be the problem staying on?
Oct 27, 2019 at 8:40 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good evening,

The blower resistor is the most common issue for this problem.

I attached the location of the resistor and a diagram for you of the circuit.

Roy
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Oct 27, 2019 at 10:11 AM
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WESTRUCK
  • MEMBER
  • 55 POSTS
The new blower motor register work very well. Fixed the problem.
Nov 14, 2019 at 9:27 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good deal. Glad it is fixed.

Roy
Nov 15, 2019 at 2:24 AM
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