aircon not working

cyber-shot · Unread post by **cyber-shot** » 27 Apr 2008, 19:32

HI all hope someone can help, my air con was working last week no probs then today switched it on,no cold air the light comes on on the switch inside the car.
the compressor is not engaging and the rad fan is not coming on either.i ran the temp up and the fan cuts in as normal
xsara HDI MK2 2001

Unread post by **CitroJim** » 27 Apr 2008, 20:47

It's been a good weekend to find A/C problems. First decent bit of warm weather this year

My first thought would be that there is not sufficient gas in the system to operate the HP/LP switches on the receiver/drier (the bottle with the sightglass on it) Check the connections to it. In case of insufficient gas, the A/C compressor clutch will not pull in to guard against damage.

This thread gives some useful information on how to diagnose the problem.

cyber-shot · Unread post by **cyber-shot** » 27 Apr 2008, 21:46

HI i was looking for the receiver/drier (the bottle with the sightglass on it) today couldnt find it, my guess is it might be behind the front bumper.

? would this also stop the rad fan running at slow speed
thanks for the reply

Clogzz · Unread post by **Clogzz** » 28 Apr 2008, 17:24

Can only speak for the Xantia, the receiver-dryer and pressure sensor switch are behind the top of the radiator.
Same for the fans, they will start when the air conditioning is turned on, even if the gas is low, or the pressure sensor switch disconnected.
The interior fan must be set to some speed setting before the aircon will start.

cyber-shot · Unread post by **cyber-shot** » 01 May 2008, 18:02

Hi got the aircon serviced yesterday the system was empty, he said he tested it and couldnt find any leeks so he filled it and it works ok, got the car home switched on aircon

not working again ,so guess it has a leek somewhere getting it tested again on saterday.
he told me dryer bottle is behind dash inside the car