Skip the auto shop - Our mechanics make house calls

Q: fan won't work on first setting

asked by on

My fan won't work on speed setting 1. According to my research, there might be a register that went bad. I just replaced the controls, but the fan still doesn't work on setting 1. Any idea what other things I might try?

Hello. When the fan motor is not working on a specific speed, it’s most commonly due to a problem with the blower motor fan resistor. The resistor’s job is to send the proper voltage to the blower motor fan for each speed of the fan.

When the resistor fails, it will not send the right amount of voltage to certain speeds, in your case fan setting number one. In this situation, replacing the blower motor resistor would be necessary to fix the problem. This should be done by a certified technician.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My brakes on my Jeep are squeaking after I replaced them?

Hello. This will occur if the brakes are not done correctly. When the brakes are done on this vehicle, the drums or rotors need to be machined or replaced. If they are not, then the pads will not break in...

Q: How do I change the fan speed control?

The fan speed is controlled by the Fan Speed Control dial. Rotate the dial clockwise, towards HI (High), to increase the fan speed, or rotate it counterclockwise, towards LO (Low), to decrease the fan speed.

Q: Having problems with clutch

If the hydraulic clutch master cylinder and slave cylinder are bad then it will not push in the clutch pressure plate far enough to allow it to disengage. If the hydraulic system is pushing the pressure in far enough and...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...