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Thread: aircon issues

  1. #1
    New Member Are you sure's Avatar
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    Default aircon issues

    Went to have my aircon regassed yesterday but the garage told the wife there was plenty of gas in it, but filled it and checked it. You can here the revs change as the aircon is turned on, so i assume that side of things are o.k. Garage suspect the compressor and quoted the wife in excess of £600 to do the job. i'm not convinced anyone any ideas.

    After running the car with the aircon on there is a squeeling like gas noise coming from towards the front of the engine for a few seconds after the cars turned off.

    Help please i'm cooking in it with this weather

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    Default

    I do wonder why they recharged the air con if it was ok for gas and the compressor isn't working? Hope they didnt charge you. I also suspect the compressor too, if the compressor cuts in and there is sufficient refrigerant in the system then im afraid they are probably right in my experience. The noise you can hear is just the gas pressures balancing out in the pipes and quite normal. I get so busy this time of the year with air con problems and if its not a gas issue (leak) then its usually the compressor. Sorry i cant be any more help.

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    Ex Vec-C Admin & Founder GARY3306's Avatar
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    Default

    Another issue that sometimes crops up is garages putting in too much refrigerant. This results in an extreme high pressure and the high pressure valve opens and cuts the compressor out. Start the car and switch on the aircon, watch what the compressor does. If it engages but then jumps straight back out again, engages again immediately, jumps staright back out again etc etc etc, then I would suspect it is overgassed. You say the garage topped it up. Did he evacuate what was in there first? If he didnt, then he wouldn't know how much was in there so he wouldn't know how much to put in for it to be the correct amount, do you follow me. At work I totally evacuate and vacuum down the system and my machine tells me what it has taken out. I then tell the machine how much I want to go back in according to manufacturers spec.
    For example, if your system capacity is 600grams but over time it has dropped to 320grams, the aircon will not be as cold as it can be (if at all), but there is no way of knowing it has 320 in unless you take it out. So Mr garage man says "Oh yea, its not cold enough, I'll regas it, it takes 600 grams so I'll put that back in for you...." Your system now has 920grams in it Not good and your aircon WILL NOT work. So, worth checking it isn't overgassed
    [SIGPIC]VX<font color=Red>R</font> with added Courtenay <img src=https://www.vectra-c.com/forum/images/smilies/biggrin.png border=0 alt= title=Big Grin class=inlineimg />

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    New Member Are you sure's Avatar
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    Default

    Thank you both. I'll check if it is overgassed. I suspect i'll be paying for the compressor to be changed as its just too hot without it.

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