Omega Owners Forum - AIr Con!!!

SlacMac

Newbie

Offline

On the Dark Side you belong
to me

Posts: 8
Slough for my horrible sins!!
Gender: male

Drives: Omega 2.5 V6 with 3.0ltr cams

AIr Con!!!
28. Jul 2006 at 14:28

For the last couple of weeks its been fookin hot, so temperature had to come down in the car. Well it blows coolish air, but not what I would expect. So did myself a little test today. Normally in the past, if I swtich Air Con off the engine revs would drop a bit at idle, and rise again when Air Con turned back on. Now when I do it nothing changes, inside the car all is fine cooling fan does its bit according to what is displayed on the ECC, but the temperature doesn't do its stuff.

So basically, from what I can tell something under the bonnet isn't working. Compresser or Condenser or dunno, unfortunately I don't have a clue about this so replies in lamens terms please Tongue

Back to top

« Last Edit: 28. Jul 2006 at 14:28 by SlacMac »

IP Logged

Matchless

Omega Knight

Offline

Posts: 1746
Nottingham
Gender: male

Drives: The one at the end of the drive

Re: AIr Con!!!
Reply #1 - 28. Jul 2006 at 15:06

First check that the compressor clutch is engaging.

Engine running, a/c off or ECO
Look at the a/c compressor, the outer part of the pulley will be turning with the aux belt but the front face should be stationary.
Now turn a/c on (or eco off), the front face of the pulley should now be spinning as the clutch should have engaged.

If the clutch is engaging but you have only slight cooling then it is possible that some of the refrigerant has leaked out over time. Get it to an a/c specialist to check pressures and top-up if necessary.

If the clutch is not engaging then there is either an electrical fault or you have lost most of the refrigerant and a safety switch has inhibited the clutch.
Check that the electrical connector is fully 'home' on the bottom of the compressor.
Have a look at the a/c pipes down between compressor and radiator, you will find two sensors screwed into the pipes, check that the connectors are fitted to these properly.
Fuses.
If you cant find anything then its off to the a/c guy again for a pressure check and re-fill followed by careful leak testing.

Back to top

IP Logged

RolandL

Intermediate Member

Offline

Posts: 386
Doncaster
Gender: male

Drives: '99 2.5 V6 mini facelift

Re: AIr Con!!!
Reply #2 - 28. Jul 2006 at 15:28

I had same problem with mine, checked everything out no sign of anything not working, apart fron the compressor not engaging. Inside the compressor is a pressure switch, if the "gass" level gets too low (unit will naturally loose gass over time) the compressor won't work (only need to loose 35%,holds 950gms, and switch won't activate) I took mine to local aircon specialist, and had the unit regassed, cost £60.

Has been ok since, and it's like living in a fridge !

Back to top

The faster you go the bigger the grin. Trade card user. V6 Cam locking kit available for loan

IP Logged

Martin Imber Over Active Poster Offline LPG Omega V6 - Keyfobs Rebuilt Posts: 20110 Worcester Gender: Drives: 2001 Omega 2.6CD LPG & 3.0 cams	Re: AIr Con!!! Reply #3 - 28. Jul 2006 at 15:32 There is a sensor on one pipe hanging down, and the cables tend to get broken off it. I had that with my 2.0 so it is worth a look
Back to top	The other tuned 2.6. DIY LPG, towbar, upgrade ICE & Wing Spoiler, Air shocks, Eibach Pro Springs, Poly WB bushes, WIM setup, HID conversion, 3.0 cams, ported ect. IP Logged

SlacMac Newbie Offline On the Dark Side you belong to me Posts: 8 Slough for my horrible sins!! Gender: Drives: Omega 2.5 V6 with 3.0ltr cams	Re: AIr Con!!! Reply #4 - 28. Jul 2006 at 15:36 Thanks guys, if you can point me in the right direction for the compressor clutch, that would be great, I know about engine stuff but this air con goes like a 747 straight over my head
Back to top	IP Logged

iggy21uk Omega Knight Offline Omega Spotter - tats gone tanning Posts: 1148 Berkhamsted - Herts Gender: Drives: Omega 2.5 Elite 1999	Re: AIr Con!!! Reply #5 - 28. Jul 2006 at 16:36 Mine was same cool air not cold air. Re-gassed £60.00 check for leaks Now so coooool. Handbook says run once a month even during the Winter. Air con man says this helps the seals and stop the gas leaking out dont have a clue if this is true or not ???
Back to top	*Opelscanner Can owner / Cam lock kit owner* IP Logged

Martin Imber Over Active Poster Offline LPG Omega V6 - Keyfobs Rebuilt Posts: 20110 Worcester Gender: Drives: 2001 Omega 2.6CD LPG & 3.0 cams	Re: AIr Con!!! Reply #6 - 28. Jul 2006 at 16:43 iggy21uk wrote on 28. Jul 2006 at 16:36: Handbook says run once a month even during the Winter. Air con man says this helps the seals and stop the gas leaking out dont have a clue if this is true or not ??? Yes
Back to top	The other tuned 2.6. DIY LPG, towbar, upgrade ICE & Wing Spoiler, Air shocks, Eibach Pro Springs, Poly WB bushes, WIM setup, HID conversion, 3.0 cams, ported ect. IP Logged

Marks DTM Calib Administrator Offline Ex Member Posts: 25671 Northern Hemisphere Gender: Drives: Astra J, Mum Bus, Dexta Tractor, 108 DMU wip	Re: AIr Con!!! Reply #7 - 28. Jul 2006 at 17:07 Running the pump circulates the aircon PAG oil around the system. This keeps the compressor, seals and pipe work coated in oil...
Back to top	« Last Edit: 28. Jul 2006 at 17:08 by Marks DTM Calib » IP Logged

markey mark BANNED Offline banned for repeatedly reneaging on deals. Posts: 1 scunthorpe north lincs Gender: Drives: 99 mv6 est leather & 19"s	Re: AIr Con!!! Reply #8 - 28. Jul 2006 at 19:08 i would run it once a week matey keep everything nicely lubed up !!
Back to top	IP Logged

Matchless Omega Knight Offline Posts: 1746 Nottingham Gender: Drives: The one at the end of the drive	Re: AIr Con!!! Reply #9 - 28. Jul 2006 at 23:23 SlacMac wrote on 28. Jul 2006 at 15:36: Thanks guys, if you can point me in the right direction for the compressor clutch, that would be great, I know about engine stuff but this air con goes like a 747 straight over my head Looking at the engine, the a/c pump (compressor) is the bottom pulley on the right.
Back to top	IP Logged

Mark_L Newbie Offline Posts: 11 Berkshire Gender:	Re: AIr Con!!! Reply #10 - 29. Jul 2006 at 09:07 I can recommend this company; http://www.readerair.co.uk/home.html based in Woking - not a million miles from Slough.... they recently sorted the pump on my 3 litre. They will do a free diagnostic first....
Back to top	IP Logged

SlacMac Newbie Offline On the Dark Side you belong to me Posts: 8 Slough for my horrible sins!! Gender: Drives: Omega 2.5 V6 with 3.0ltr cams	Re: AIr Con!!! Reply #11 - 30. Jul 2006 at 17:39 Top man Pete, I'll check it out tomorrow
Back to top	IP Logged

This is the old site. Please use the new site.

This is the old site. Please use the new site.

www.omegaowners.com/forum/index.php.

This is the old site. Please use the new site.

	Welcome, Guest. Please Login