Fan Controller Only Works on High!

[Paul D]

Hey everyone! Apologies if this has already been covered, but I tried searching for existing threads on this issue, but couldn’t find anything. Anyway, My AC works ... but only on the high setting. Any advice? Thx!

 

[AxeZ06]

Could be a blown resistor in the fan control panel.
Had the exact same problem with an f150.

 

[FightingIrish]

Could be a blown resistor in the fan control panel.
Had the exact same problem with an f150.

x2
Haven't run into it in the Vette, but have replaced blower motor resistors in two of our other vehicles...both times the fan would only work on select speeds.

 

[12cents]

Definitely sounds like the resistor. You might have to replace the control itself depending on if the resistor is integral to the unit. Or it could be somewhere else in your circuit (like the fan motor). You will need to double check first. My guess is that it is integral to the control like I mentioned, but double check to be sure.

 

[Paul D]

Definitely sounds like the resistor. You might have to replace the control itself depending on if the resistor is integral to the unit. Or it could be somewhere else in your circuit (like the fan motor). You will need to double check first. My guess is that it is integral to the control like I mentioned, but double check to be sure.

Good suggestion, thanks. I'm not going to try to fix myself (not that smart), so taking it in next week I will suggest this as some to consider. Appreciate it.

 

[AxeZ06]

Maybe someone can lend you a hand:

Why Does Your Car Heater Only Work on One Speed?

If your car's heater is only blowing at one speed, your blower motor could be to blame. Learn how to fix it from an expert.

www.familyhandyman.com