My blower only works on HIGH

Asked by May 11, 2016 at 03:45 PM about the 2010 Ford F-150

Question type: Maintenance & Repair

I have a 2010 Ford F150, Over the past year, the A/C heater blower has
gone from working on all levels, 1 thru 4 to just working on HIGH. I have
replaced my resistor and that did not correct the problem. At the time, I
thought the problem must be something else then since it still worked the
same as with the old resistor. But I have since learned that the resistor is
bypassed on the HIGH setting. So now I'm wondering if the new Resistor is
DOA. Is there any way to check if it's a dud or not? Any other suggestions
on what this could be and how to trouble shoot? BTW, I am not
mechanically inclined. Just like to learn new things and enjoy a good
challenge

2 Answers

23,350

You will need a couple of things. An ohm meter and the resistance measurements of the contact points for the resistor. The net should explain how to check the resistance of the contact points once out of the vehicle. And yes, the resistor is bypassed with the fan is on high. You should check and make sure the blower motor is working properly, not jammed, or any obstructions preventing the free movement of the blade/fins. Any obstructions or hindrances can blow the resistor quickly. Make sure the resistor was not damaged with it was installed by visually checking it. If you have to install a new resistor, check it with an ohm meter before installing.

845

The temp control unit is computerized in this year truck what i would is go to the local salvage yard and see if they have one eaither in stock or out in the yard buy it if they do and swap them out. Alot of times when this happens a newer car or truck it is 9 out of times going to be a bad temp control

Your Answer:

Ford F-150 Experts

  • #1
    OJ
    Reputation
    10,510
  • #2
    dandyoun
    Reputation
    4,890
  • #3
    tennisshoes
    Reputation
    3,770
View All

Related Models For Sale

Used Chevrolet Silverado 1500
110 Great Deals out of 11,293 listings starting at $4,900
Used GMC Sierra 1500
87 Great Deals out of 11,141 listings starting at $3,880
Used Ford F-250 Super Duty
23 Great Deals out of 939 listings starting at $5,995
Used Toyota Tundra
30 Great Deals out of 1,626 listings starting at $2,140
Used Dodge Ram 1500
27 Great Deals out of 489 listings starting at $3,800
Used Ram 1500
195 Great Deals out of 29,731 listings starting at $8,995
Used Toyota Tacoma
20 Great Deals out of 1,571 listings starting at $2,140
Used Ford Mustang
20 Great Deals out of 1,358 listings starting at $2,995
Used Nissan Titan
12 Great Deals out of 964 listings starting at $2,995
Used Ford F-350 Super Duty
15 Great Deals out of 1,585 listings starting at $8,500
Used Chevrolet Colorado
12 Great Deals out of 2,653 listings starting at $3,995
Used Chevrolet Silverado 2500HD
15 Great Deals out of 1,372 listings starting at $9,995
Used Ford Explorer
16 Great Deals out of 1,791 listings starting at $5,777
Used Chevrolet Tahoe
12 Great Deals out of 902 listings starting at $7,979

Used Cars For Sale

2018 Ford F-150 For Sale
13 Great Deals out of 6,988 listings starting at $23,049
2017 Ford F-150 For Sale
11 Great Deals out of 550 listings starting at $369
2016 Ford F-150 For Sale
16 Great Deals out of 925 listings starting at $21,996
2015 Ford F-150 For Sale
16 Great Deals out of 619 listings starting at $14,540
2014 Ford F-150 For Sale
17 Great Deals out of 453 listings starting at $13,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.