Air Con Not Working

[rigga955]

As luck would have it, on the hottest couple of days so far this year, I jump into the car and realise the air out of the vents isn't as cold as it should be, AC light is on when the switch is pressed, but looking at the pump the clutch is not engaged as the pulley isn't turning, so where's to look first? Fuse? Relay? Or simply lost all its gas. ?..... what to do.

[IHgs300]

Could be down to low/no gas as there is a pressure switch to guard against damage.

[CHUNKY CHIP]

Check the clutch is moving manually with engine switched off feel for easy or tight movement.

Then find the sight glass in the system see if you can see any form of liquid there if not quick and easy way use one the we will check your AC places like ats or such like they can connect and check the system.

it does not take much for the A/C to stop when gas levels are low and this can happen when the a/c is not used as the compressor seal drys up and gas leaks past this point often also so its always good to run a/c whenever possible even in winter just to keep system in operating condition.

let ne know after the above checks

[rigga955]

Wheres the sight glass situated? I know that low gas will disable the system but unless there is a hole in a pipe somewhere id be pretty surprised if its leaked past the seals, my impreza was older and air con worked perfect and never had it gassed and only used it a couple of times a year, my car had for whatever reason a lot of down time in it's past checking miles at mot time, so that might explain it .....you used to be able to get get top up cans from Halfords if I remember right.

[rigga955]

Right clutch on compressor spins free so not seized, 10 amp fuse in drivers kick panel is ok, can't see any liquid in the sight glass by one of the pressure ports so looks like its low, although lightly pressing of one of the valves reveals there is some pressure inthe system ...... looks like a regass needed.