heater fan switch trouble?
02-06-2010, 07:13 PM
#1
Junior Member
Thread Starter
Join Date: Mar 2009
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
heater fan switch trouble?
one speed on the fan switch (not low but the 1st speed after) is not working on my 2002 fx4 4.6. Has anybody had this trouble and how to fix it? Do u think it is in the switch? Any help would be great!
Thanks
Thanks
02-06-2010, 08:15 PM
#3
Senior Member
Probably not the selector switch. On my 97 it was the blower motor resistor
board. It was around $20.00 from the dealer. It's next to the glove box on the left side. It has two screws holding it in and a wire with a plug going to it. You will be able to change it in under 10 minutes or so. Good Luck
board. It was around $20.00 from the dealer. It's next to the glove box on the left side. It has two screws holding it in and a wire with a plug going to it. You will be able to change it in under 10 minutes or so. Good Luck
02-06-2010, 08:21 PM
#4
I agree with the Blower Motor Resistor. easy to replace. dealer or local parts store. low speed not working, the second is next, third next until all you have left is high only.
My guess is the condensation inside corrodes the wires and they break.
My guess is the condensation inside corrodes the wires and they break.
Last edited by sharptp; 02-06-2010 at 08:30 PM.
02-06-2010, 09:32 PM
#5
OVERTHINKER
Ok we got 2 answers here. If you have manual heat and A/C the Blower Motor Resistor is the answer and if you have the automatic temp control the Blower Speed Controller is the answer.
02-17-2010, 04:00 PM
#7
Junior Member
Join Date: Feb 2010
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
Fixed my blower motor speeds
Just replaced this Blower Motor Resister, its fixed (real easy) all speeds now work 
Cost 16 dollars with my discount at NAPA.
BIG THANKS to Sharptp and the rest of you for posting the fix
Cost 16 dollars with my discount at NAPA.
BIG THANKS to Sharptp and the rest of you for posting the fix
Trending Topics
12-17-2010, 06:19 PM
#9
Junior Member
Join Date: Dec 2010
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
Blower not working on high
Any body have any other ideas. I have a 2004 FX4, and the blower works on 1, 2, and 3. It works on 4 but runs the same speed as 3, so basically I have 1, 2, and 3, and 3 again. I changed the resistor (ford part) today, but it did not fix the problem.
12-17-2010, 11:57 PM
#10
You can check the resistance on the Blower Motor Switch(dash), or do it the easy way, Take it out, go to Advance or another parts store that allows returns, and put in the new one, if it works you are good to go, if it doesn't fix the problem, return it, you are just out your time.
Then I would Check the wiring from every connection from the Dash Blower Motor Switch down to the Blower Motor itself for corrosion/melting. Cleaning them with a can of electrical cleaner along your inspection.