Air Con Fault Finding - Alfa Romeo Forum
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Join Date: Mar 2011
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147 2.0 Lusso

Air Con Fault Finding

I've only had my 147 about 4 weeks but the air con is not working.
I am trying to determine whether it just needs a re-gas before getting it done.
This is what I have done already:

All fuses checked and OK.
Checked release valve on air con pipe and absoloutely nothing - no pressure/hissing etc.
Voltage going to air con compressor (via single wire) is very low, only about 0.8v.

Should I just get it re-gassed first and go from there or can I do anything further while the system is empty?

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The system will only operate if the system is pressurised (and the pressure switch is working), so you need to get it leak-checked and re-gassed if it's ok.

Mine is the same... I had the remnants of a self-charging can that was enough to get it to kick in, but it seems to have stopped working again. Guess I need a leak-check (or I'll stick with winding the windows down)!
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Hope you don't have the same problem as I did. Whoever owner the car before me had had work done that required removing the gear-linkage cables from their brackets. Whoever did the work didn't put them back afterwards. Gear linkage then proceeded to rub its way through an aluminium aircon pipe at the back of the engine bay.

£400 to replace including parts and labour (I'm glad I got a quote in advance for the work as it ended up taking 12 hours but the dealer honoured the quote. Independent quoted £75 more than dealer for the same job, incidentally.....)
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