Join Date: Aug 2008
Location: United Kingdom
Re: air con not working
[QUOTE=alfred156 would that let gas excape or would there deffinatly be a leak. should i press in the valve to see if any gas comes out. not sure if tats a good idea[/QUOTE]
the gas can escape just as happily whether the system is turned on or off, what usually happens is that by turning off the system there is no refrigerant flow (other than natural migration) and hence no oil flow and the compressor shaft seal and 'o' rings shrink as they dry out and the gas then leaks.
no point in pressing the valve , the system maybe be low on gas but still retain some and all you do then is run the risk of frostbite!!!!. the low pressure switch is probably in the range of 1.8 bar cutout and 2.1 bar cut in if it follows Delphi' Diavia's normal switches, and they built the HVAC for Alfa at Molinella in Italy
best bet is dare I say it is Kwik Fit who will do little more than put a set of gauges on or more likely a charging station and tell you its low on gas.
pity your not in Dorset as I could recover any gas left test with OFN , repair and regas.
It is illegal to recharge a system short on refrigerant without carrying out a repair, its not good enough to say can't find the leak and just recharge it.
Supaimpy AKA Keith
159 Ti ,GT 2.0 JTS, 66 Hillman Imp. 73 Clan Crusader.