markie Posted March 8, 2008 Report Posted March 8, 2008 (edited) Would appreciate a bit of help. Got Seat Alhambra 130 bhp TDI (04 reg). Tested air conditioning last week and wouldn't work. Had someone out today who serviced and regassed. He said there were no leaks in system, but was low on gas. Still wouldn't work due to compressor not working. Was told by him it might be the high pressure switch. Am taking it back to him next week if I can't sort it myself. No power is getting to compressor (tested). Have found pressure switch (I think). It is behind the horn at the front of the vehicle? The electrical connection to this has three wires, black one is live (tested). Other is brown, other is striped. Which wire should I bridge with the black wire to bypass the switch to see if the compressor will work? Cannot find my Ford TIS due to moving recently ! Next question Near to the pressure switch the pipe is clamped to the car body and I know it is leaking there (can see a drop of liquid and if you put your finger there it hisses a bit). Have not taken it off yet, but would it be o.k. to repair this leak with rubber hose and 2 jubilee clips, or is there a better method which does not involve buying a new (probably very expensive) pipe? Was doing so well with the air con as well, after reading other people's nightmares, thought I was one of the lucky ones - apparently not ! Edited March 8, 2008 by markie Quote
JohnR Posted March 8, 2008 Report Posted March 8, 2008 I'm afraid you will have trouble trying to fix the leak yourself. Modern refrigerants have a very small molecule which makes them more difficult to contain than the less environmentally friendly older ones. The small molecule size is also one of the reasons why there are more pump seizures these days as the clearances have to be that much tighter. If you can hear it hiss it sounds like a big un. When I checked mine out and found it leaked and that the compressor had gone, I decided I'd rather just live with the windows down a bit than pay the Quote
markie Posted March 8, 2008 Author Report Posted March 8, 2008 (edited) Have included picture (above). Is this the pressure switch near the centre left where the black box is coming out of pipe? Leak in pipe is directly right of the pressure switch (if this is the pressure switch) where it connects to car body in picture. Edited March 8, 2008 by markie Quote
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