Air Conditioning Fault

MatBat · Post by **MatBat** » Fri Oct 31, 2003 2:49 pm

Hey all.

When I select the A/C button the ventilation fan starts but not the actual compressor, all fuses etc look okay, so any ideas?

All the best

Ernie · Post by **Ernie** » Fri Oct 31, 2003 2:58 pm

What is the exterior temperature? The airco does not work below (about) 3 degrees celcius, so maybe that is the cause... (otherwise try it in your garage

)

stay cool

MatBat · Post by **MatBat** » Fri Oct 31, 2003 6:34 pm

temp is about 10C

volvofox · Post by **volvofox** » Fri Oct 31, 2003 8:56 pm

Hmm, maybe the refrigerant gas has gone, and your car needs a airco service man Maybe a good ID to take a copy of the downloadable electric schemes with you to him, maybe safe some diagnosis hours, just in case the problem is VEM related (electrical)

Luck
JPF

David Thornber · Post by **David Thornber** » Sun Nov 02, 2003 8:47 am

According to the FAQ section on the main site, the air con won't work below 10 C. So it could be that yours is working how it was designed to.

argian · Post by **argian** » Sun Nov 02, 2003 11:32 am

Hi my air con doesn't work too.That's because all the refrigerant gas has gone due too bad pipes.So i am about to change those but i am not in a hurry as winter is coming.The volvo pipes according to the dealer are 300Euros(two pipes

) but i am getting aftermarket ones.

sakis480 · Post by **sakis480** » Mon Nov 03, 2003 7:07 am

Ok peope....

This happens many times..so there is an electric part which does not enable the airco compressor to start if there is not a freon in the pipes so under pressure...refill the closed system with freon - no more than 300 mg- and then try to start it.....

Put something in the throttle cable so as to have a slight increase in rvms (1500 is fine), close the windows and put an electrical thermometer in the air outs on the tablaw.....set the airco to the max..in a time of 15 minutes the thermo has to show a temp of 6 degrees celcius.

in case the air co is still no working, then check the pipe which is under the battery...in the pipe there is a valve which is the one to check the temp of the freon...in other words when the temp gest low automatically stops the airco compressor not to be freezed...This valva due to years of working needs replacement and actually this is the most common case in airco problem specially when the climate is too hot like here..I have replaced mine twice..so have a look there....

All the above are common ones, of course take the consideration that the same compresser might need replacement and thats an expensive pat to buy if u still have th old freon R34 type...

hope this helps a lot
luck!!
sakis480