[Cornishman]

Okay guys, posted how good Kwik Fit were in recharging my air-con a couple of days back. But my air-con is no longer blowing cold. The thin tube from the compressor is very hot, but the thicker tube doesn't feel very cold at all. I seem to remember on this forum a post that states it should be icy.
The clutch appears to be okay as when you turn the air-con on and off, you can see the centre of the compressor kick in and start to turn. When it was recharged, they got 1280grams out and put 1380grams in. So I guess it hasn't got a leak.
Not sure where to start and am overwhelmed by the hits coming back in search :doh:

 

[Col]

Remove Bonnet slam panel and have a look at Top Corner's of Condensor they are Cusioned in a Piece of Foam Rubber, and the Condensor Corrodes away Under the Foam and the UV Dye is Soaked up in the Sponge and not always Visable as a Leak.
Just a thought and might be worth a look.

Cheers

 

[waveydavey]

I would take it back to them; if it was OK (ish), they regassed it including a system check and now it isn't OK then it's their problem.

They may have not reseated one of the schrader valves properly or something equally daft?

 

[lrscott]

It is definitely a leak, mine did the same thing when it leaked. Get a UV light and scan the compressor and condenser which are the main places it will leak out. check the vents in the vehicle as well, that will indicate an evaporator leak (which is unlikely). Check the connections etc. Might also want to tighten the bolts on the back of the compressor, that is what cured my leak .

 

[waveydavey]

when mine leaked it was the condenser, the tell tale is at the bottom you see an oil stain. The Evap's go as its the first thing in the airstream.

I'd still take it back though; if they pressure tested it then it should not have a leak; if they knew there was a leak and put gas in anyway then it's actually illegal.

 

[big-t]

Take the plastic cover off your compressor and see if pulley is spinning when air-con is on, if not try looking at the plug for your compressor as it may be corroded as mine was. All I did was cut out the plug and hardwired it together with some soulder and a peice of shrink tubing, now it works perfect . Good luck, love those cheap fixes. :thumb:

 

[Cornishman]

Okay guys,
Went back to KwikFit today. They connected up their air con machine, pulled out 1380grams, nothing lost then :dance: Pulled a vacuum again for about 40mins. Repressurised, then the guy checked over all the hoses, joints, condenser with a black light. Nothing :think:
Put the aircon on low and the temp coming out was the same, if not a bit higher than the air temperature. They turned the aircon on and off and you can see the clutch engaging and disengaging......What the hell is happening?
Good news is, they refunded last weeks payment of £45.Rather have it working though.....

 

[Ka177ran]

Good news is, they refunded last weeks payment of £45.Rather have it working though.....

That is good news :thumb:

Have you tried swapping the aircon relays? and inspected the fusebox for damage?

I hope you get it sorted soon ray:

 

[mark jeansonne]

The only time something similar happened was on my old 97 4.0. Turned out clogged pollen filters will knock out the a.c., burns up a particular relay.

But if you are sure compressor is engaging, guess that is not your problem.

 

[waveydavey]

Did they put one connection or two on it? If two they should have been able to tell you suction and discharge pressures.

If not what are the pipes to the compressor like? The one in should be coolish, the one out hot enough to burn your hand and cold again coming out of the condenser.

 

[Col]

They turned the aircon on and off and you can see the clutch engaging and disengaging......What the hell is happening?

The Cluch maybe Engaging and Disengaging and the Compressor turning but is it actualy doing anything?, if it has a Internal fault of some sort in the Compressor and is not Compressing the Gas and Pumping it around the system I would assume it will not pull the Temperature Down.

I would Imagine there is some method of testing the actual Compressor to check that it is working.

Don't know for sure only a suggestion.

Cheers

 

[Cornishman]

The only time something similar happened was on my old 97 4.0. Turned out clogged pollen filters will knock out the a.c., burns up a particular relay.

But if you are sure compressor is engaging, guess that is not your problem.

I'll look at the pollen filters. :thumb:

 

[Cornishman]

Did they put one connection or two on it? If two they should have been able to tell you suction and discharge pressures.

If not what are the pipes to the compressor like? The one in should be coolish, the one out hot enough to burn your hand and cold again coming out of the condenser.

Two hoses were connected up, but they didn't give me any detail on pressures.
Regarding pipe temp's one is as hot as hell and the other is still feeling warm, not icy as I thought it should be.

As a side note, the compressor is making a rumbling noise, not loud. Can't say I've noticed it before though.

 

[big-t]

Cornishman, do you have a Rave CD? I was just going over the possible remedies for your problem and there are quite a few things that you could check at home. If you don't let me know and I'll take the time to list them all for you, Good luck Bud, hope you solve your problem soon.

 

[lrscott]

Although, i doubt it. There could be a clog in the system. When they were testing mine, they had gauges on it and I could see the pressures fluctuating normally. I brought it in again for a different issue, and wanted to have them test the system as the compressor was not cycling on and off (just staying on the entire time). When they hooked the gauges up to it, one side was not getting a high enough pressure which was the reason it was not cycling, and indicated something was wrong (either a leak, or the compressor was failing). Fortunately all I needed to do was tighten some bolts :dance: . I think your compressor might be failing though if it did not leak anything out.