Hi Everyone,

I'm new here to this site, and somewhat new to Volvo. This seems like a GRRREAT site that I look foreward to becoming actively involved in. On my 1995 850 Turbo with ECC, here's the issue... The two orange "A/C" and "REC" lights are NOT LIT UP at all. My blower fan doesn't work on any setting, and my A/C compressor is Locked-up (not spinning freely at all). I'm also instantaneously blowing fuses for the A/C compressor as soon as I install them. This situation began all at once. Driving in the rain with the A/C blowing cold, fan blowing, etc. all working perfectly... Next second, with no warning, "SCRRRREEEEEECCCCHHHH!!!!!" - A/C compressor locked-up, both lights went dead on climate control panel (lights never "blinked" or anything... straight from "on" to "dead"), and no blower fan motor. I got the car back home less than a mile away... Hobbling into the driveway, my serpentine belt snapped and broke free from the car... no reported injuries. I have since routed a serpentine belt that is bypassing the A/C compressor. Glad to at least have the car drivable at this point, I could hardly care about having A/C. I DO need to get the blower fan working, at least. I have NO IDEA where to begin on this "phase" of the project... PLEASE HELP!!!

Thanks Everyone,

Paul

Also clear any codes stored under B1 in your diagnostic box. See the FAQ for 700 to learn how to read and clear.
For some of my ECC problems, they went away when I cleared the codes. Don't know why.

Klaus
--
98 V70Rawd(108Kmi), 95 854T(88K mi), 75 164E(173K mi)

your compressor seized, and will need to be replaced, i would suggest you replace the accumulator and the orifice tube which is inline on the hard pipe going to the evaperator.after the repairs replace the blown fuse or fuses.

I do appreciate that advice, except right now I don't have adequate funds for that kind of a job. For now, I must get the blower fan working by itself without A/C... any ideas on how to achieve this???

Thanks!

Paul

In the mean time why don't you see if you can simply pull the wire to the compressor so it quits smoking fuses and then see if you can get the rest of the system online. If so at that point you will at least have a blower fan but no compressor or cold air.

Mark

Thanks for the idea there, Mark. I tried it, and STILL no blower fan motor and neither of the two orange "A/C" and "REC" lights are lighting up on the ECC panel. Everything still "dead" on the ECC panel. The only improvement so far is that I'm no longer blowing A/C fuses due to the compressor being disconnected. I still don't know where to go with this thing... Feel free to get me your next idea!


Thanks!

Paul

Well now you will need to start with the basics, check all of the fuses and see what is going on there. You're going to want to look at fuses: 2,3,5,7,8,9,15,31,33,34. Past that check relays 105 and 106 in the underhood fuse panel. That should give you something to look at. Next you will need to pull the A/C ECU, disconnect the connectors and check for power on any of the leads.

ok, Mark. As a self proclaimed novice, especially to Volvo, I need just a little more help. I can handle the "checking fuses" task. Can you tell me "exactly" where relays 105 and 106 are? (All that I saw in the "underhood fuse panel" were fuses... was I missing relays somewhere there???). I was talking with someone at an auto parts store and they said that the relays for the A/C and blower motor were tucked somewhere inside the dash... is this true? What do relays 105 and 106 control, exactly? Also, pulling the A/C ECU... Can you tell me where that is/how to get to it, also? Clearly, I am lost here. I appreciate you giving me some positive direction.

Thanks!

Paul

Well, start with checking all of those fuses to start. Those relays are located next to the fuses in the underhood compartment. You would have to shoot the 4 screws that hold the entire cover down out of the way and then you can access it. They are overload relays and I doubt they are the problem but they are part of that circuit. They hot up, among other things, the ECC ECU (via fuse 31) and fuses 12 and 13. The actual compressor relay is located on the front of the climate control box behind the glove box. Usually relays aren't the culprit in what you describe. It sounds as if your compressor shorted to ground and popped a fuse. The question is while it was shorted to ground did it draw enough current to smoke your ECU. From the schematic it looks like it would be tough to do, but you never know.

Mark