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I've realised my air conditioning is not working and only blows non-cooled air. I thought it maybe just needed re-gassed but unfortunately the valve reading is showing as very high when I attached a gauge (so I obviously did not attempt to add any coolant myself). I've tried the ACC diagnostic but this is showing zero error messages. Can anyone suggest some tips for action I can take myself in order to try to fix this or at least work out what the issue is? I realise I may need to take it along to a professional air-con place to get work done but I'd rather try to fix it myself if possible. Many thanks!
 

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Not something i'd recommend as a DIY to be honest. The diagnostic on the ACC panel won't show up faults with the condenser/dryer/compressor or if the system has been overfilled with refridgerant. This will cause the safety default to click in and air con will stop working. I'd bite the bullet and take it to an aircon specialist who will evacuate and refill with correct ratio of coolant and compressor oil. Kwik fit offer this service for £50 but i would use a specialist, ring around and you should be able to get away with £70.
 

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I do all the work on my own vehicles(have 4) but Kermit's right.I'm going through this now and what Ive spent so far trying to figure it out,$300 more a specialist could have fixed it and would have had a warranty for 1yr.That's my next stop.
 

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Fault symptoms
The compressor clutch engages but the system's cooling capacity is insufficient.
Conditions
The conditions are as follows:
• Outside temperature>5°C.
• Radiator fans are functioning.
• There is free air flow to the condensers.
• No difference in temperature between the drier filter inlet and outlet.
• Pressure at the low-pressure side normally 1.5-2.5 bar.
• Pressure at the high-pressure side depends on the load on the system.

Condenser Pressure above 27Bar.
Coolant Temp above 125C
or
Evaporator Temp below 0C
all will shut off compressor.

Could be too much refrigerant. or Faulty AC Pressure Sensor.
Or temp sensor on Evap Canister.

You need to figure out what shuts off the Compressor, its one of the safety things and it sounds like it is shutting itself down.
Its not really DIY but its what the WIS had.
 
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