Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×

Go Back   Keystone RV Forums > Keystone Tech Forums > Tow Vehicles
Click Here to Login

Thread Tools Display Modes
Old 06-19-2021, 08:46 AM   #1
Senior Member
Join Date: Nov 2017
Location: Victoria
Posts: 101
F150 climate control fan stuck on one speed

I've asked on a Ford Forum, but they are much slower at responding...

2013 F150 3.7 EcoBoost

My heating/air conditioner fan is stuck on one speed, and when I turn off the fan it goes into high mode.

I've checked the pin connectors and the power and ground provide good voltage. When I test the speed control and ground, the voltage gets lower the higher the fan speed, which I think is the opposite of what it's supposed to do.

I've changed the blower motor resistor, but no change in the fan. Where do I check next? The blower motor?
2016 Springdale 240BHWE
2013 F150
pikespeakviewer is offline   Reply With Quote
Old 06-19-2021, 11:55 AM   #2
Site Team
chuckster57's Avatar
Join Date: Jul 2014
Location: Modesto
Posts: 18,490
Depending on the price and how long it would take, I might change it to rule it out. But it sure seems odd that lower voltage would cause higher RPMs.

2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.

Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
chuckster57 is offline   Reply With Quote
Old 06-19-2021, 12:01 PM   #3
Join Date: Jun 2021
Location: SELA
Posts: 31
Maybe the blower motor speed controller.

2021 Cougar Half-Ton FW 32BHS (Coming Next Year)
2021 F350 SRW CC SB 6.7L Diesel
8upbowhunter is offline   Reply With Quote
Old 06-19-2021, 12:34 PM   #4
Senior Member
Join Date: Nov 2017
Location: Victoria
Posts: 101
Thanks everyone. That was one of the videos I watched to figure out how to change the speed controller.

I ended up unplugging the blower motor itself and tested the pins going to it. They were all fine. I plugged everything back in, said a few choice words and headed to get groceries.

When I got 1/2 way to the store I realized how hot it was and that my fan was off. Thinking the worse, I held my breath and turned the climate control on, and to my surprise, it worked as expected! All my fan speeds are there and the original parts are back in. I was able to return the replacement part (thankfully the guy at the parts counter was proud of me for trying to figure things out with a deployed hubby). I figure that something must have been loose and re-seating everything worked, for now at least.
Thanks for all your help!
2016 Springdale 240BHWE
2013 F150
pikespeakviewer is offline   Reply With Quote
Old 06-19-2021, 12:47 PM   #5
Senior Member
NH_Bulldog's Avatar
Join Date: Apr 2019
Location: Henniker
Posts: 1,432
I had a similar problem with my last Ford vehicle where fan would only work on one speed. It tended to be intermittent so I replaced the blower motor speed controller and it solved the problem for good
Rob & Amy
2019 Passport 240BH SL
2022 Ford F250 7.3L Godzilla Crew Cab 4x4
NH_Bulldog is offline   Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Powered by vBadvanced CMPS v3.2.3

This website is not affiliated with or endorsed by the Keystone RV Company or any of its affiliates in any way. Keystone RV® is a registered trademark of the Keystone RV Company.

All times are GMT -8. The time now is 10:10 PM.

Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2023, vBulletin Solutions, Inc.