Fan, temperature, and vent controls kaput

Tolzer · 01-13-2019, 12:58 AM

About a month or so ago, without warning-all the selector knobs for fan speed, temperature, and vent output selectors stopped functioning. For the longest time, the slowest fan speed (1), was not working, but everything else was. Ever since everything stopped, the vent selector just turns without the "click" between the positions. All the fuses are good, and I never smelled anything that would alert me to any electrical shorts or components melting. Any help is greatly appreciated.

nblehm · 01-13-2019, 08:21 AM

What kind of jeep?

Tolzer · 01-13-2019, 06:12 PM

Quote:

Originally Posted by nblehm

what kind of jeep?

2006 tj

6DoF · 01-14-2019, 05:47 AM

Rock auto has new ones for decent prices, just did one in my dad's. however we also had to buy a replacement connector from MOPAR and pig-tale to solder in cause one of the connectors melted to the back of that switch body.

any smoke come out the top of the dash?

Tolzer · 01-18-2019, 12:02 AM

No smoke. I replaced the resistor. Nothing...Next I'll look at the control knobs, but I find hard to believe that all of them would stop working at the same time.

xj_man_646 · 01-21-2019, 03:03 PM

have you replaced control panel yet? I'd start there. The resistor is only applicable when your fan only works on the highest speed setting. Since all the controls crapped out, I'd replace that unit.

nblehm · 01-22-2019, 10:51 AM

So I'd assume you have power to the blower motor and no ground? I'd check g202 ground and c3 ground into the control panel. All 3 switches and blower motor ground on same wire.

01-13-2019, 12:58 AM	#1
Tolzer Pimptastic Join Date: Dec 2003 Location: North Alabama Posts: 2,981	Fan, temperature, and vent controls kaput About a month or so ago, without warning-all the selector knobs for fan speed, temperature, and vent output selectors stopped functioning. For the longest time, the slowest fan speed (1), was not working, but everything else was. Ever since everything stopped, the vent selector just turns without the "click" between the positions. All the fuses are good, and I never smelled anything that would alert me to any electrical shorts or components melting. Any help is greatly appreciated.

01-21-2019, 03:03 PM	#6
xj_man_646 Senior Member Join Date: Oct 2004 Location: MN Posts: 27,349	have you replaced control panel yet? I'd start there. The resistor is only applicable when your fan only works on the highest speed setting. Since all the controls crapped out, I'd replace that unit. __________________ - James I like diesels

01-13-2019, 08:21 AM	#2
nblehm Needs moar dagger Join Date: Feb 2004 Posts: 26,683	What kind of jeep?

01-14-2019, 05:47 AM	#4
6DoF AKA: jeepnski Join Date: Sep 2002 Location: Pittsburgh, PA Posts: 16,523	Rock auto has new ones for decent prices, just did one in my dad's. however we also had to buy a replacement connector from MOPAR and pig-tale to solder in cause one of the connectors melted to the back of that switch body. any smoke come out the top of the dash?

01-18-2019, 12:02 AM	#5
Tolzer Pimptastic Join Date: Dec 2003 Location: North Alabama Posts: 2,981	No smoke. I replaced the resistor. Nothing...Next I'll look at the control knobs, but I find hard to believe that all of them would stop working at the same time.

01-22-2019, 10:51 AM	#7
nblehm Needs moar dagger Join Date: Feb 2004 Posts: 26,683	So I'd assume you have power to the blower motor and no ground? I'd check g202 ground and c3 ground into the control panel. All 3 switches and blower motor ground on same wire.