HVAC Fan Speed Low speed doesn't work (links to photos)

mushupork · 07-30-2006, 11:40 AM

When running either fresh air or AC in my 2002 TJ, position one of the fan speeds does not work. The switch goes from Off to 1 (Low) to 2 (Med) to 3 (High-Full) as you turn from left to right. This for all settings (face, feet and face, defog etc)

After searching this forum for some confirmation, I went to the dealer yesterday and bought a new fan speed switch thinking the issue was in the switch. (approx $25 with tax) I opened the dash and connected the new switch in place of the old but have the same issue. Could the fan motor be bad or maybe some wiring? Is this the first step before the fan motor dies completely?

These are pics from my camera phone - not great but not terrible

No visible damage on the old/stock switch

No visible damage on the old/stock connector

This is the box for the new switch (model might be important?)

It may not sound like a big deal but it gets pretty irritating going from no fan to medium speed only *all the time*. Anyway, tips or suggestions appreciated. Thanks in advance.

Conundrum · 07-30-2006, 11:44 AM

Dude! Focus, focus, focus!

mushupork · 07-30-2006, 03:17 PM

Not to be a smart aleck ... but ... did the part about "These are pics from my camera phone" get missed?

It is the only camera I have.

Seriously though, before I have the dealership look at the fan motor looked it would be nice if someone confirmed whether there was anything else I could do

Conundrum · 07-30-2006, 03:32 PM

Mine only works on 1, 2 and 4. I need a new switch. Hopefully then it will work then. As for what yours is doing, I have no clue.

TBoons · 07-30-2006, 04:00 PM

It is probably the fan resistor. Search for that, it is pretty easy to change. At least it was in my XJ.

Tim

RedSoxFan · 07-30-2006, 05:38 PM

Sounds like the resistor to me, you can pick up the part from the dealer for $15. I found replacing it to be a PITA but worth the effort. The '02 uses the "credit card" shaped resistor, it slides into the blower assembly under the glove box.

mushupork · 08-02-2006, 09:14 PM

Thanks for the tip. I will contact the dealer for the resister.

Wonder if I can return the switch

07-30-2006, 11:44 AM	#2
Conundrum Registered User Join Date: Jul 2005 Location: Western Maryland Posts: 688 Profile Gallery Classifieds My Jeeps	Dude! Focus, focus, focus! __________________ Matt 2001 Jeep Wrangler Sport 4.0L - Amber Fire Pearl Coat 1981 DeLorean DMC-12 VIN: 2953

07-30-2006, 03:32 PM	#4
Conundrum Registered User Join Date: Jul 2005 Location: Western Maryland Posts: 688 Profile Gallery Classifieds My Jeeps	Mine only works on 1, 2 and 4. I need a new switch. Hopefully then it will work then. As for what yours is doing, I have no clue. __________________ Matt 2001 Jeep Wrangler Sport 4.0L - Amber Fire Pearl Coat 1981 DeLorean DMC-12 VIN: 2953

07-30-2006, 04:00 PM	#5
TBoons Registered User Join Date: Feb 2004 Location: Fort Myers, FL Posts: 159 Profile Gallery Classifieds My Jeeps	It is probably the fan resistor. Search for that, it is pretty easy to change. At least it was in my XJ. Tim __________________ 04 TJ RME MODs: Sirius Radio, Oil Changed (x2), Tires Rotated (x1)

07-30-2006, 05:38 PM	#6
RedSoxFan Registered User Join Date: Oct 2004 Location: New Hampshire Posts: 173 Profile Gallery Classifieds My Jeeps	Sounds like the resistor to me, you can pick up the part from the dealer for $15. I found replacing it to be a PITA but worth the effort. The '02 uses the "credit card" shaped resistor, it slides into the blower assembly under the glove box. __________________ [COLOR=Yellow]Solar Yellow[/COLOR] '02 Sport RE BB, OME shocks, OME stabilizer, Bestop Flares, 32 X 11.5 BFG AT's, Spidertrax wheel spacers, Iggee seat covers, Pioneer DEH-P47DH, Infinity 5002i speakers (4), Kenwood KSC-SW1 powered sub

08-02-2006, 09:14 PM	#7
mushupork Registered User Join Date: Jan 2002 Posts: 32 Profile Gallery Classifieds My Jeeps	Thanks Thanks for the tip. I will contact the dealer for the resister. Wonder if I can return the switch

07-30-2006, 03:17 PM	#3
mushupork Registered User Join Date: Jan 2002 Posts: 32 Profile Gallery Classifieds My Jeeps	Not to be a smart aleck ... but ... did the part about "These are pics from my camera phone" get missed? It is the only camera I have. Seriously though, before I have the dealership look at the fan motor looked it would be nice if someone confirmed whether there was anything else I could do