SSV AC Issue.

[Gunnazz]

G'day all,

As the title suggests, I'm having issues with my AC. I was driving to work and about 10 min into the drive the AC cut out, its hast returned since. I have since checked the following,

AC belt is still there although the compressor is not engaging. The compressor clutch relay is working (swapped with fog light relay) The 10 amp AC fuse is ok and has continuity both sides. The AC system still has 100 psi gas both high and low sides. The high low cut out switch wiring has continuity, I'm unsure how to test the switch itself. Of the 2 plugs on top of the compressor only the rear most plug has continuity the front dose not. I'm unsure on were to progress now, Should I continue to look at the plug on the compressor, Is the front plug supposed to have continuity or dose it switch on and off with the AC?

Any help or ideas on were to look next would be greatly appreciated.

The vehicle is a series 2 SSV ute.

 

[SSVREDLINEUTE]

G'day all,

As the title suggests, I'm having issues with my AC. I was driving to work and about 10 min into the drive the AC cut out, its hast returned since. I have since checked the following,

AC belt is still there although the compressor is not engaging. The compressor clutch relay is working (swapped with fog light relay) The 10 amp AC fuse is ok and has continuity both sides. The AC system still has 100 psi gas both high and low sides. The high low cut out switch wiring has continuity, I'm unsure how to test the switch itself. Of the 2 plugs on top of the compressor only the rear most plug has continuity the front dose not. I'm unsure on were to progress now, Should I continue to look at the plug on the compressor, Is the front plug supposed to have continuity or dose it switch on and off with the AC?

Any help or ideas on were to look next would be greatly appreciated.

The vehicle is a series 2 SSV ute.

I suspect you have a leak in your plumbing possibly one of the o rings at the connecting plumbing maybe faulty. Mine did the same thing.. If there is no gas in the system the compressor will not turn on... You stated you have gas in the system are you 100 % sure about that?

 

[VTSS304]

with the front plug on the compressor, try and work out which side is positive and connect 12V to it, and earth the other side, that plug is what tells the clutch in the A/C to turn on. When you supply power you should hear a click as it tries to engage even with the car and engine off. If theres no click, try doing the same experiment with the car running. If still no click or engagment it's likely to be the clutch on the compressor is buggered. thus most likely a new compressor.

 

[kingyinperth]

Am guessing its out of warranty?

 

[Gunnazz]

Yeah no warranty unfortunately. I'm 100% there is gas in the system, I borrowed a set of AC gauges and had a look. I will have a look at the plug this afternoon, Thanks for the advice guys.

 

[Rivers56]

Just fixed my AC after not working for a whole year. After about 150k it stopped. Unplug the connector on the compressor itself turn the AC on and you should have a constant voltage. If not could be pressure switch or a fuse or even a wiring issue. Mine had power and as I had it re gased already with no success I knew it was the compressor. Bursons quoted me $800 for the one for the 3.6l engine. Went on eBay found a Calais being wrecked in Melbourne and bought one for $100! A mate installed it at his work now it's all good. Would hate to think what Holden would charge