Mark Flanagan Posted July 21, 2021 Share Posted July 21, 2021 My air con compressor isn’t switching on. Is there a module I should check before I change compressor? Quote Link to comment Share on other sites More sharing options...
Magnet Posted July 21, 2021 Share Posted July 21, 2021 Hello Mark, Many thanks for being in touch. Probably well worth changing the pressure sensor (quite a cheap part) before going to the great expense of changing the compressor. There are quite a number of threads on the subject last year. Kind regards, Gareth. Quote Link to comment Share on other sites More sharing options...
Mark Flanagan Posted July 21, 2021 Author Share Posted July 21, 2021 Hi thanks for the response would that stop the compressor kicking in? Quote Link to comment Share on other sites More sharing options...
Magnet Posted July 22, 2021 Share Posted July 22, 2021 Hello Mark, Have you read the threads yet? If not, I would suggest you do. To answer your question - would you think it’s worth ‘investing’ in a £20 odd gamble to hopefully save yourself many hundreds of pounds? Do you know the cost of new compressors? Yes, I know you can buy some Chinese ones for c£100 if you are lucky - or unlucky as the case may be! - if they work or don’t work. You will probably not want to pay Audi prices, so there are highly restricted avenues between the two alternatives. Compressors should be long lived if they don’t leak, and I believe another potentially weak spot is the clutch assembly. Have a read and a ferret around for prices. Kind regards, Gareth. Quote Link to comment Share on other sites More sharing options...
Mark Flanagan Posted July 22, 2021 Author Share Posted July 22, 2021 Hi i was only asking if a faulty pressure switch would stop the compressor kicking in Quote Link to comment Share on other sites More sharing options...
Magnet Posted July 22, 2021 Share Posted July 22, 2021 Hello Mark, And I was only trying to be helpful! Sorry if I failed on this occasion. Kind regards, Gareth. Quote Link to comment Share on other sites More sharing options...
Mark Flanagan Posted July 22, 2021 Author Share Posted July 22, 2021 I know thanks but I still don’t know if a faulty switch would stop the compressor kicking in cheers Mark Quote Link to comment Share on other sites More sharing options...
Steve Q Posted July 22, 2021 Share Posted July 22, 2021 You could always get a diagnostic check carried out to see if any fault codes flag up? I'd be getting the garage to diagnose mine. But in failing that the switch is definitely cheaper to change a d worth a shot. Quote Link to comment Share on other sites More sharing options...
Mark Flanagan Posted July 22, 2021 Author Share Posted July 22, 2021 Hi its a 2008 car so not wanting to spend a lot checking it out. If the switch was a possible cause I’d go for that cheers mark Quote Link to comment Share on other sites More sharing options...
Magnet Posted July 22, 2021 Share Posted July 22, 2021 Hello Mark again, Of course, you could progress from the school of thought that the switch is possibly faulty and change that - cost?? You could invest in half an hour’s time with a trusted local auto electrician, if you don’t have the knowledge or equipment to test the switch which you are now suspecting rather than the compressor. You could change the pressure sensor since this has been a known problem area. You could go ahead and change the compressor, but it’s all supposition, until you clearly identify the problem source - via. some outside assistance, as I see it. OK, so you go ahead and change the switch, and bingo, you were right, you still have to spend to get the system emptied, flushed, pressure tested and refilled - not so cheap I guess - so why not take it to the same specialist who has to do that, and seek their advice? Of course, Steve is right regarding diagnostics, but if you don’t want to spend on that, then you certainly are down the road of spending trying-this-trying-that. Kind regards, Gareth. Quote Link to comment Share on other sites More sharing options...
Mark Flanagan Posted July 22, 2021 Author Share Posted July 22, 2021 Hi thank if it’s possible it’s the switch I’ll try that car has recently been re gassed i live in Scotland so it’s not a big problem if I can’t get it going 😂 cheers Mark Quote Link to comment Share on other sites More sharing options...
Brian74656 Posted July 22, 2021 Share Posted July 22, 2021 1 hour ago, Mark Flanagan said: Hi thank if it’s possible it’s the switch I’ll try that car has recently been re gassed i live in Scotland so it’s not a big problem if I can’t get it going 😂 cheers Mark Haha you will get 1 or 2 days a year that are hot pmsl, its the rain and cold that makes the scenery so amazing Quote Link to comment Share on other sites More sharing options...
Mark Flanagan Posted July 22, 2021 Author Share Posted July 22, 2021 Lol I know. It’s those 2 days per year I wish my aircon was working Quote Link to comment Share on other sites More sharing options...
ninjag Posted July 26, 2021 Share Posted July 26, 2021 I used my aircon all year round as in winter it's great for demisting windows, plus I'm sure it's meant to be better for the system and keeps it lubricated etc. Quote Link to comment Share on other sites More sharing options...
Mark Flanagan Posted July 26, 2021 Author Share Posted July 26, 2021 Hi yes I was told after it failed I should've used it not just for summer Mark Quote Link to comment Share on other sites More sharing options...
Brian74656 Posted July 26, 2021 Share Posted July 26, 2021 I know I use my aircon all year round as well as a dehumidifier in the winter Quote Link to comment Share on other sites More sharing options...
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