SPONSORED LINKS

The fan runs at constant speed?

Tiny
2CP-ARCHIVES
  • MEMBER
  • 1991 CADILLAC BROUGHAM
  • V8
  • 2WD
  • AUTOMATIC
  • 70,000 MILES
The fan runs at constant speed, will not turn off with car. Must unplug fan to make it stop running. Climate control system does not make any difference what it is set at. Ie Auto Hi Auto Low, Auto all the same. What could be the problem?
Wednesday, October 20th, 2010 AT 6:10 PM

1 Reply

Tiny
2CP-ARCHIVES
  • MEMBER
  • 4,542 POSTS
Either the ECC (Electronic Climate Control Unit) or the Blower Control Unit. I would start with the Blower Control Unit, It is basically the old fan speed resistor.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, October 20th, 2010 AT 6:18 PM

Please login or register to post a reply.

Related Climate Control Content

HVAC System Reset
GUIDE
HVAC System Reset
Is the temperature or vent operation not working correctly for your car's air conditioner, defroster or heater? Do you hear strange noises form under the dashboard? This...

Sponsored links