my truck's heating control only works on high. Low and Med dont work at all. why?
Feb 7, 2009 at 12:32 PM
heating control only works on high
RAJPADAM
- MEMBER
- 1 POST
Hello,
It sounds like an issue with the blower motor resistor.
The resistor is located on the side of the blower motor. It controls the speed of the fan as you turn the knob for different speed.
The resistor can have faulty circuit and typically fails by only blowing in the highest setting.
The blower motor is located on the fire wall, on the passenger side.
Here is a helpful article that covers the blower motor resistor:
https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only
Please let me know of any questions.
Thank you.
It sounds like an issue with the blower motor resistor.
The resistor is located on the side of the blower motor. It controls the speed of the fan as you turn the knob for different speed.
The resistor can have faulty circuit and typically fails by only blowing in the highest setting.
The blower motor is located on the fire wall, on the passenger side.
Here is a helpful article that covers the blower motor resistor:
https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only
Please let me know of any questions.
Thank you.
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Sep 20, 2021 at 1:07 AM
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