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A/C only works on high after replacing cabin air filter


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jobie
New User

Sep 24, 2012, 10:45 PM

Post #1 of 4 (2009 views)
A/C only works on high after replacing cabin air filter Sign In

2004 Subaru Outback Legacy 4 cylinders 101,000 miles

Scratching my head hoping this might be a quick fix before taking my car in again for the 3rd a/c repair in 2 months.

I was trying to be a responsible mother and replace both my (engine) air filter and cabin air filter after camping in some very dusty conditions. I bought the car used and never even thought to replace the cabin air filter until after my dusty trip. Accessed my cabin air filter through the glove box and lo and behold, there never was one put in (although there are slots for one). Frown I don't have the ability to put a filter in without the frame to pop into the casing. I returned the purchased filter to O'Reilly and replaced the glove box. Now the fan only works on high. Checked the connection where the housing for the filter goes and it seems fine. Can't be any sort of fuse or it wouldn't work at all, right? Tried to find info online and hoping this forum can give me some ideas. Thanks in advance for any advice. I'm new to DIY car repairs and basic maintenance but enjoy learning how to fix things. Even put in 4 new speakers and a stereo earlier this summer. Smile


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Sep 25, 2012, 1:55 AM

Post #2 of 4 (1977 views)
Re: A/C only works on high after replacing cabin air filter Sign In

By description this would be likely the blower resistor and because you have been in there AND messed with speakers plus recent A/C work can't say much for sure but it happened right when you went in there so first guess is a problem happened by going in there.

Watch out for DIY to save a buck. Mixed info on this cabin air filter so accuracy is a guess. The resistor in the area should look like this.......



Procedures listed could be wrong but seem involved. Best I could find is that it is in that area and no info on wire colors to test that it is working. So far I can only suggest go back and check your work that all is back exactly,

T



jobie
New User

Sep 25, 2012, 10:58 AM

Post #3 of 4 (1956 views)
Re: A/C only works on high after replacing cabin air filter Sign In

Thanks for your response. I will look into it. I replaced the speakers months ago (and studied audio engineering so I wasn't going into the process completely blind) so it isn't related to that but yes, messing with the filter is what I suspect. It is supposed to be an easy maintenance procedure to replace the cabin air filter. I don't try and tackle things I can't handle. I will check out the information you posted.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Sep 25, 2012, 12:18 PM

Post #4 of 4 (1947 views)
Re: A/C only works on high after replacing cabin air filter Sign In


Quote
I don't try and tackle things I can't handle.


And yet the blower worked before and not after.



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