rpseeley

Please take a look at this simplified schematic of the heater circuits I made. See anything wrong about it? Thanks. http://www.rpseeley.com/My_Pictures/Technical/SubaruHtr.GIF

It's not coming on at all without the blower. I has the switch panel off but couldn't see anything amiss in there. Perhaps I should hit it with some contact cleaner spray?

Thanks. When it does run, the speeds are controlled as they should be with the speed switch. That's how I know it's not the fan pack resistor.

Well, here's the thing. Doing what Northwet recommended has never produced any response whatsoever. The only thing that's ever got it to running again is to wait a half hour or so. Then it would run normally again for as long as the engine is running. Then if the engine was turned off, when I would come back five minutes later and start the engine, the blower is dead again. Another strange thing is that the A/C has also responded correspondingly. That is, at times when the blower would run, the A/C would activate and blow cold air. However, when the blower doesn't run, the A/C won't activate. I don't mean that it just won't blow cold air, I mean the compressor won't come on. So there's something common with the heater and the A/C that has gone south and prevents the blower from coming on.

I wish it was the blower motor. At least I could get to that. I know it's not though because when it does run, it runs fine. I guess what I need to find out is how to get to the blower motor relay. In my mind, that's the most likely candidate. Maybe not the relay itself, but the connector/connection. Thanks though.

Thanks. I appreciate that. We only have one wrecking yard here in LC and it's sorely lacking. If I can't find a seal around here, I may be over to see you.

Wow. Thanks for the directions. I've been in there before pocking around but couldn't find anything amiss. Have you ever accessed the blower relay? Looks to me from the manual like it's behind the ducting about center firewall. That means taking off a whole lot of stuff, huh. :-/

When it does run, it runs just fine and at all speeds, so I don't think its the resistor element itself or the speed switch itself. Another funny thing is that it never quits as long as its running. I haven't been able to find a parts car in my area. I might have to go to Portland or Salem. Thanks for the response.

"Our records indicate that you have never posted to our site before! Why not make your first post today by saying hello to our community in one of our forums. With over 3,300 users and more than a 110,000 posts across many categories, the USMB is a great place to find tons of information about your Subaru!." Ok. I'll just do that little thing, even though I've never posted before so don't really know what I'm doing. First of all let me say that I'm sure glad to be here because my 87 GL Wagon is not in the best of shape and I could really use some friends that know their way around this vintage of Subaru. I've got a couple of problems as of late that I could definitely use some help with. First, that is to say it's been around the longest, is my heater/defroster blower motor intermittantly failing to come on. First it happened rarely and then more and more often and now it just won't come on at all. I figure it's a loose wire somewhere, maybe at the blower relay or the diode connection. It looks like it must be the pits to get to those parts. Funny thing too, is that as long as it's running, it doesn't cut out or stop. I also get the impression that it's temperature related, but I don't see anything on the schematic that would be temperature dependent. Has anyone dealt with this before? If so, what was the problem? My second problem is the rubber seal in my driver's side door. It was occassionally folding in and making the window difficult to open. I would have to run the window down to the bottom and jockey it slightly up and down a few times until the rubber unfolded and went back into the correct position again. So this was happening more and more often, and now it's pretty much stuck (luckily in the window closed position). I guess the rubber seal need replacing, right? But where in the world would I find a replacement rubber seal? Arghh. Well, thanks for listening. I hope there's someone on the USMB that can help me out. I've got a bunch of other little problems, but if I can fix these two at least I'll be able to make it through till spring. Manually defogging the windshield is difficult not to mention dangerous.