AC not working..

[etlsport]

I did a search, didnt see any issues like this one.. here goes..

the other day I drive like 20 minutes, park the VX, turn the key to ACC to listen to the radio with the engine off, my friend shows up, i start the VX and take off. i realize its getting cold.. look down, indicator lights for the AC controls are all off, i try hitting a few buttons, nothing worked, tried changing fan temp from auto to the manual settings.. still nothing, got out, checked all the fuses, nothing.. turned the vx off, pulled the key, started it back up, worked fine

few days ago, get in the vx, start it up after sitting overnight.. no AC lights again, shut it down, started it back up, works fine again

earlier today, vx had been sitting for maybe 2 hours, same thing

havent noticed a pattern in when it happens, just randomly it will be like i have no power to my AC, the backlighting still works fine when i turn the headlights on, just no indicator light to tell me which mode i am in (defrost, feet, dash etc) and nothing works until i turn it off and turn it back on

could this be the resistor behind the glove box? i thought all that did was give you no control over fan speed

[Chopper]

I hate electrics:madp::madp: This is gonna suck in a few months. Better get techin' Mr. Engineer. You know where your meter is

[HotFlyer]

Is the compressor turning off and on? Or is the problem just the fan.

Howard (0761)

[Joe_Black]

Compressor relay may be faulty, have seen that before with other vehicles. One of my current 300D's did this until replacing the relay and its socket which was corroded pretty bad. Works like a champ now.

Left unchecked it could freeze-up and do some damage which translates to $$$.

[tom4bren]

Intermittent electrical problems are the worst thing to try & trace. I'm guessing that with all of the work you've done behind the head unit, a connector may have come loose behind the dash. Since none of the fuses were blown, that would be the next thing I'd check.

[WormGod]

Wow, people using A/C? I am still using my heat! Heh!!! Though, I can't use A/C in my VX with my S/C cause it causes too much overheat anyways.

I will agree it doesn't sound like the unit as much as it does the electronics/wiring. And sadly, that is where I draw the "dumb" straw. I heard of a similar problem with a buddy who has a VW. His auto temp control had a mind of it's own. A visit to a VW dealer revealed and solved his issue. I never heard what the issue was though. Pesky dashboard poltergeists.

[etlsport]

haha its not just the AC.. I cant get the climate control to do ANYTHING when it does that, no heat, no AC no fan no nothing.. I looked through the electrical troubleshooting manual, I'm going to check the fuse for the blower controls again, then like joe mentioned, the relay seems that it could be a likely culprit from the wiring diagrams. I need to get behind my dash soon anyway to take care of a few other little electrical gremlins, at least i know what the problems with those are. at this point i have pretty much completely re-wired the VX stereo, and lighting, so i just have to hope i labeled everything correctly so it will go quickly!