Blower motor will not stop until I disconnect battery

Tiny
RICK WATZ
  • MEMBER
  • 2002 FORD F-150
  • 5.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 209,000 MILES
Will not stop until I disconnect battery and reconnect. All controls work when truck is running. Radio turns off sporadically. Rain seems to cause the trouble.
Saturday, October 6th, 2018 AT 10:41 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Hello,

It sounds like the blower motor relay is stuck on. Here is a wiring diagrams so you can see how the system works and a guide to help you test the relay with the relay location as well:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Check out the diagrams (below). Please let us know what happens.

Cheers, Ken
Images (Click to make bigger)
Thumb
Thumb
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, October 8th, 2018 AT 10:41 AM

Please login or register to post a reply.

Related Blower Fan Stays On Content

VIEW MORE

Sponsored links