Blower fan

2004 MERCURY MARQUIS
75,000 MILES • 4.6L • V8 • 2WD • AUTOMATIC
Avatar
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 3:40 PM
Advertisement
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 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
Images (Click to enlarge)
Attached Media
Attached Media
Attached Media
Oct 27, 2019 at 5:11 PM
Avatar
WESTRUCK
  • MEMBER
  • 55 POSTS
The new blower motor register work very well. Fixed the problem.
Nov 15, 2019 at 5:27 AM
Advertisement
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
Good deal. Glad it is fixed.

Roy
Nov 15, 2019 at 10:24 AM