HVAC Control won't go on Defrost

PuNkY · 10-16-2009, 04:08 AM

Every mode works, except defrost.

When I slide halfway between floor and defrost I start to feel resistance. When I try to put it all the way to defrost, it won't stay, nor does it goto defrost.

Tried to manually do it, from under the dash. Didn't work.

Any ideas? Its getting that time of year, where I really need it.

ktthecarguy · 10-16-2009, 04:33 AM

Hi there,
I don't know how to do it, but it sounds like an obstruction in the selector door. Probably would require a bit of unbolting to get at it.

Somebody else chime in?

PuNkY · 10-16-2009, 01:22 PM

Any other suggestions, before I rip my dash apart?

SLCraig · 10-16-2009, 01:33 PM

Something's just blocking it from going over all the way... On my car, I had this happen when one of the spare RCA's from my stereo was sitting over on the right. I just popped the A/C panel out and with a long screwdriver pushed it out of the way. This on a 96 though.

PuNkY · 10-16-2009, 01:44 PM

Quote:

Originally Posted by SLCraig

Something's just blocking it from going over all the way... On my car, I had this happen when one of the spare RCA's from my stereo was sitting over on the right. I just popped the A/C panel out and with a long screwdriver pushed it out of the way. This on a 96 though.

I don't think its that. I went under the dash and tried to manually change it, and it was still not going in defrost.

SLCraig · 10-16-2009, 01:47 PM

Quote:

Originally Posted by PuNkY

I don't think its that. I went under the dash and tried to manually change it, and it was still not going in defrost.

Well, start pulling some trim then and take a look.. Not going to know until you start investigating.. I still say something is blocking it.. What else could it be?

PuNkY · 10-16-2009, 02:50 PM

Quote:

Originally Posted by SLCraig

Well, start pulling some trim then and take a look.. Not going to know until you start investigating.. I still say something is blocking it.. What else could it be?

I hope its just something blocking. We'll see.

I'm gunna rip apart my dash, I'll let you guys know what happens.

PuNkY · 10-16-2009, 07:02 PM

Got it working. The mechanism for the defrost was stuck. There was black lining going around it, that was bunched up causing it to get jammed. So I ripped the lining out.

I don't know what that lining dose but its gone.

Anyone have an idea what that black, "ducttape like" lining around the defrost mechanism is?

10-16-2009, 04:08 AM	#1
PuNkY Junior Member Join Date: Jan 2009 Location: New York Posts: 49 1993 SC2	HVAC Control won't go on Defrost Every mode works, except defrost. When I slide halfway between floor and defrost I start to feel resistance. When I try to put it all the way to defrost, it won't stay, nor does it goto defrost. Tried to manually do it, from under the dash. Didn't work. Any ideas? Its getting that time of year, where I really need it.

10-16-2009, 04:33 AM	#2
ktthecarguy Member Join Date: Oct 2009 Location: Livonia MI Posts: 247 1997 SW2	Re: HVAC Control won't go on Defrost Hi there, I don't know how to do it, but it sounds like an obstruction in the selector door. Probably would require a bit of unbolting to get at it. Somebody else chime in?

10-16-2009, 01:22 PM	#3
PuNkY Junior Member Join Date: Jan 2009 Location: New York Posts: 49 1993 SC2	Re: HVAC Control won't go on Defrost Any other suggestions, before I rip my dash apart?

10-16-2009, 01:33 PM	#4
SLCraig Master Member Join Date: Aug 2007 Location: London, ON Posts: 3,077 1996 SL2 2000 SW2	Re: HVAC Control won't go on Defrost Something's just blocking it from going over all the way... On my car, I had this happen when one of the spare RCA's from my stereo was sitting over on the right. I just popped the A/C panel out and with a long screwdriver pushed it out of the way. This on a 96 though. ... 1996 SL2 5MT 1997 SL1 5MT 2000 SW2 5MT All gone, but not forgotten.

10-16-2009, 07:02 PM	#8
PuNkY Junior Member Join Date: Jan 2009 Location: New York Posts: 49 1993 SC2	Re: HVAC Control won't go on Defrost Got it working. The mechanism for the defrost was stuck. There was black lining going around it, that was bunched up causing it to get jammed. So I ripped the lining out. I don't know what that lining dose but its gone. Anyone have an idea what that black, "ducttape like" lining around the defrost mechanism is?

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