Troubleshooting the HVAC - Subaru Impreza GC8 & RS Forum & Community: RS25.com

**Supers587** · 03-13-2010, 10:02 PM

Problem: It won't turn on. At all. Not even 4.

I know it's not the resistor because when that goes bad, it still works on 4. It WAS working, then suddenly stopped. It's none of the arms because a) they're all connected but b) they don't control the speed. I checked the fuses and they're all fine, the relay clicks on and off so I know that's good too. I checked the connectors in the back and they're all clicked in, but I took them out and put them back just to make sure.

I'm out of ideas, but I need this working because I can't see out of my windows when they fog up. =/

**chRS** · 03-13-2010, 10:10 PM

did you test if the blower is getting power?

Christo454 · 03-13-2010, 10:12 PM

Any wires get pinched since you removed the dash and everything? Use some kind of voltage tester to make sure all connections are getting power, grounds, all that electrical jazz.

tyler_s18 · 03-13-2010, 10:17 PM

sounds like motor. i would unplug it and jump the connector with a test light and if its gettin power and gets brighter when you turn up the speed i would replace the motor. but if you recently pulled the dash and it worked for a while after then quit you could of pinched a wire then shorted it to blow the motor or just fry a wire so that would be my first thought if you are not gettin power to the motor

**99GC8** · 03-13-2010, 10:37 PM

Quote:

Originally Posted by tyler_s18

sounds like motor. i would unplug it and jump the connector with a test light and if its gettin power and gets brighter when you turn up the speed i would replace the motor.

this

**Supers587** · 03-13-2010, 10:51 PM

Ugh. I just removed the entire interior and now something back there goes bad. I'd really hate to do this all over again. The bright side is that I've done it so many times I can tell you how many screws and bolts are in there, where they are and what sizes they are without looking at the thing

Christo454 · 03-13-2010, 10:52 PM

The beauty of a swap

sorry to bust your balls matt.

**poleboy90** · 03-13-2010, 11:22 PM

Mine was doing this, it started not working most of the time then after about 2 months it wouldnt work at all. Took the blower assembly apart, tested it, and it worked so I put it back together and it has been working since. Weird.

**jton** · 03-14-2010, 01:57 AM

Blower!

**Joshua** · 03-14-2010, 05:31 AM

All you have to remove is your glove box.

Double check and make sure that you plugged in the right connector to the blower box. The fact that it worked before and showed no signs of going bad, that it is more then likely a bad connection somewhere.

03-13-2010, 10:02 PM	#1 (permalink)
Supers587 Premium Vendor My: Subaru Parts My: Subaru Blog Join Date: Apr 2007 Trader Rating: (130) Posts: 9,077	Troubleshooting the HVAC Problem: It won't turn on. At all. Not even 4. I know it's not the resistor because when that goes bad, it still works on 4. It WAS working, then suddenly stopped. It's none of the arms because a) they're all connected but b) they don't control the speed. I checked the fuses and they're all fine, the relay clicks on and off so I know that's good too. I checked the connectors in the back and they're all clicked in, but I took them out and put them back just to make sure. I'm out of ideas, but I need this working because I can't see out of my windows when they fog up. =/ __________________ Resonated Midpipes & Radiator Shrouds - Coming Soon!

03-13-2010, 10:12 PM	#3 (permalink)
Christo454 2.0L Turbo Car: 1998 Impreza L Brilliant Red Fav Mod: My right foot. My: Subaru Parts My: Subaru Blog Join Date: Jul 2009 Location: Syracuse, New York Trader Rating: (1) Posts: 1,951	Any wires get pinched since you removed the dash and everything? Use some kind of voltage tester to make sure all connections are getting power, grounds, all that electrical jazz. __________________ "Intelligence is like 4WD, it allows you to get stuck in more remote places."

03-13-2010, 10:17 PM	#4 (permalink)
tyler_s18 1.8L Car: 1993 impreza My: Subaru Parts Join Date: Mar 2010 Location: cheyenne wy, castle rock co Trader Rating: (0) Posts: 47	sounds like motor. i would unplug it and jump the connector with a test light and if its gettin power and gets brighter when you turn up the speed i would replace the motor. but if you recently pulled the dash and it worked for a while after then quit you could of pinched a wire then shorted it to blow the motor or just fry a wire so that would be my first thought if you are not gettin power to the motor __________________ if your not living on the edge your taking up to much room

03-13-2010, 10:51 PM	#6 (permalink)
Supers587 Premium Vendor My: Subaru Parts My: Subaru Blog Join Date: Apr 2007 Trader Rating: (130) Posts: 9,077	Ugh. I just removed the entire interior and now something back there goes bad. I'd really hate to do this all over again. The bright side is that I've done it so many times I can tell you how many screws and bolts are in there, where they are and what sizes they are without looking at the thing __________________ Resonated Midpipes & Radiator Shrouds - Coming Soon!

03-13-2010, 10:52 PM	#7 (permalink)
Christo454 2.0L Turbo Car: 1998 Impreza L Brilliant Red Fav Mod: My right foot. My: Subaru Parts My: Subaru Blog Join Date: Jul 2009 Location: Syracuse, New York Trader Rating: (1) Posts: 1,951	The beauty of a swap sorry to bust your balls matt. __________________ "Intelligence is like 4WD, it allows you to get stuck in more remote places."

03-13-2010, 10:10 PM	#2 (permalink)
chRS i need a swap. stat. Car: 2000 RS STM Fav Mod: downgrading everything. My: Subaru Parts My: Subaru Blog Join Date: Oct 2009 Location: Jersey Shitty, New Jersey Trader Rating: (17) Posts: 838	did you test if the blower is getting power?

03-13-2010, 11:22 PM	#8 (permalink)
poleboy90 Premium Vendor Car: 2000 2.5 RS Impreza 4 door My: Subaru Parts My: Subaru Blog Join Date: Sep 2005 Location: Clemson, SC Trader Rating: (49) Posts: 3,271	Mine was doing this, it started not working most of the time then after about 2 months it wouldnt work at all. Took the blower assembly apart, tested it, and it worked so I put it back together and it has been working since. Weird. __________________ '...next time the cops pull you over, tell them to fuck off cause you pay their bills, so they're your bitches.' -Oolie

03-14-2010, 01:57 AM	#9 (permalink)
jton Premium Member Car: 1993 L GF Wagon EJ22T/EJ20G Fav Mod: VF39 Turbo Whistle My: Subaru Parts My: Subaru Blog Join Date: Sep 2008 Location: Nebraska Trader Rating: (8) Posts: 1,229	Blower! __________________ -Jimmy

03-14-2010, 05:31 AM	#10 (permalink)
Joshua Super Moderator Car: 2001 A.W. L Fav Mod: all of them My: Subaru Parts My: Subaru Blog Join Date: Mar 2005 Location: Lexington, KY Trader Rating: (33) Posts: 7,009	All you have to remove is your glove box. Double check and make sure that you plugged in the right connector to the blower box. The fact that it worked before and showed no signs of going bad, that it is more then likely a bad connection somewhere. __________________ I loved lego's growing up, now I own the coolest one ever!

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