A/C issue, need some advice

bro_hof · Post by **bro_hof** » 16 Mar 2006, 09:05

Hello all..I've been a long time lurker here and I've finally got a question about my '95 850 GLT sedan. Seems like we're all finding issues with our A/C systems right now since we're probably turning them on for the first time in a while....and mine is no different. First off, I've got the dreaded a/c and recirc lights flashing on my ECC. I pulled the codes and I've got the usual driver and passenger temp sensors fan seized (easy fix with some compressed air) and a fault on the blower motor current (blower still works so I'll replace when it goes out completely as it's an intermittent error). Everything else seems to work fine, and I've got no more codes...but my A/C does not kick on when when I push the A/C button. By not kicking on I mean that the compressor does not start to cycle and I get no cooling effect in the vents. I had the compressor replaced last year and it worked like a charm all thru last summer...so I'm leaning toward something electrical...perhaps a relay? I removed the glovebox and I found what appeared to be a relay (a blue box looking thing) right behind it. This blue box actually clicks when I push the A/C button, so I'm guessing that means the box is workign correctly. After that I am totally lost on what to look for next...all the fuses look good under the hood, anyone got any ideas? Thanks in advance for your help.

Post by **billofdurham** » 16 Mar 2006, 15:41

I have had a similar problem in the past with a 940. The system needed regassing. Have you had this checked? It's a quick job for any A/C repair shop.
A quick way to check the compressor is to trace the live lead to it and remove it - there is usually only one lead attached to the compressor. Run a lead from the live terminal on the battery and just touch it to the terminal on the compressor - do not leave it on for any length of time. If the compressor is OK it will kick in and that then leaves an electrical problem between the relay and the compressor. If it does not kick in it would look to be the compressor.
I would have the gas check done first because it is the most likely to cause this sort of problem.
When you get it all sorted out remember to run your A/C regularly even in winter months as the gas contains a lubricant to keep all the seals in good condition.

1995 Volvo 850 GLT Estate. (English Wagon)

95autoturbo · Post by **95autoturbo** » 21 Mar 2006, 15:12

https://www.matthewsvolvosite.com/ac_page.php