fan will only work on high setting will not work on #1 thru #5 setting
Jan 24, 2010 at 3:09 PM
fan will only work on high?
1999 GMC C1500
BRAY1926
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Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
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Hi,
The most common cause of this is a faulty blower motor resistor. The resister is located under the dash on the passenger side and mounted on the blower motor housing. It is inexpensive and very easy to replace. It's held in by two screws.
If you look at the directions below, they show how to replace one. Since it works on high, this is my first suspect.
Let me know if that takes care of the issues.
Take care,
Joe
See pics below.
The most common cause of this is a faulty blower motor resistor. The resister is located under the dash on the passenger side and mounted on the blower motor housing. It is inexpensive and very easy to replace. It's held in by two screws.
If you look at the directions below, they show how to replace one. Since it works on high, this is my first suspect.
Let me know if that takes care of the issues.
Take care,
Joe
See pics below.
Images (Click to enlarge)
Aug 25, 2021 at 9:17 PM
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