You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
Climate control panel doesnt work on the 1st or 2nd level only the 3rd or...
- Thread starter Edson
- Start date
Most blower motors are power by a basic electrical circuit that utilizes a multi resistor or a solid-state resistor to control different fan speed modes (low, medium low, medium and high). If the resistor malfunctions it may lose one or more of the lower fan speed settings.
This resistor is almost always located in the heater plenum so it can be cooled by the air circulating through the vents.
It's a fairly easy job for a DIYer.
This resistor is almost always located in the heater plenum so it can be cooled by the air circulating through the vents.
It's a fairly easy job for a DIYer.
Willie is correct that the switch is a possible source of the problem. He is WRONG about the resistor pack normally going bad entirely. That is actually the LEAST common failure of the resistor pack. A simple resistance check with a basic meter should isolate the problem to one or the other.
Willie Green
New member
- Joined
- Dec 7, 2010
- Messages
- 1
- Reaction score
- 0
- Points
- 0
Try replacing the in-dash switch. I just replaced the rsistor needlessly on my 'burban.
If the resistor is bad, it will usually go all the way bad. Won't work on any speed.
If the resistor is bad, it will usually go all the way bad. Won't work on any speed.