Why does my air conditioner fan only work at high speed?
High speed bypasses the pack which is why it still works. The startup noise could very well indicate failing fan bearings–that could have caused the burnout of the resistor pack. The pack usually cost about $20 and is fairly easy to replace–look for it near the fan assembly.
Why does my Jeep Wrangler fan only work on high?
Knows a couple things… The fan only working on high is normally due to a defective resistor pack. The resistor pack is used for all speeds except for the fan’s highest speed where the resistor pack is bypassed. Your 2003 has it in a different location than my ’97 does but yours should be somewhere up above the passenger side footwell.
How big is the resistor on an air conditioner fan?
If that should happen, you may need a new blower motor. To get to the resistor, open your glove box, squeeze in both sides and let it drop down. You should now see the resistor directly behind there. It is about 3″ x 1.5″ with a 5/16 screw on each end and two wiring connectors. (one big one small).
Why does my AC fan only work on high?
If your speed selector for your AC or Heat only works on high, or low, or if its missing any particular speed, this video will show you how to fix it once and for all. This is a fix for 2nd generation Dodge Rams (1994-2001-2002 2500/3500) Loading…
Why does the fan only run on the highest setting?
Most commonly the fan will only run on the highest setting. This is a well documented problem, and is caused by a failing blower motor resistor. Correcting the problem is straight forward, and requires replacement of the small resistor.
How does the speed of an AC fan change?
I know that a lot of automobiles have a resistor in the circuit that controls the amount of power reaching the fan thereby changing the speed at which the fan blows.
How does the AC fan on a tractor work?
The ac fan only works on the high position, it does not run on any of the other speeds. Which after a few hours in the cab will freeze you. Ive traced wires, replaced relays, and motors.