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Thread: CDX Air conditioner manual

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    CDX Air conditioner manual

    Slow speed should run pretty much continuously, most even have a front and rear mounted fan unit. High speed only cuts in with there's a fault with the low speed.

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    Also check for expansion valve problems, galaxy (to 2005) suffer from oil collecting in evaporator and partially restricting the flow, this also produces high pressures and red hot condenser but slow speed still runs fine.

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    Quote Originally Posted by boundprofane View Post
    Also check for expansion valve problems, galaxy (to 2005) suffer from oil collecting in evaporator and partially restricting the flow, this also produces high pressures and red hot condenser but slow speed still runs fine.


    With drier on the left side it does not have a sub cooled drier so fan is high speed or nothing on a 2001 Astra the 2001 with a sub cooled drier has low and high speed but will cool with only high working the two fans one is for ac one for engine cooling or wired for towbar or continental spec we are not the only ones to drive on the left apparently Astra fans usually run max 225 high speed cuts in all the time not where there is just a fault with a ambient over 14dc if u have a part restricted flow when u do your nitro test and u flow check it this will address if restriction

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    If it's the valve then I would take off the cap, listen out for a hiss which is a sign of a leak, make sure the valve is wound all the way out (get an Allen key and turn it fully anticlockwise then a little nip further to seal), spray some bubble up leak spray, flob on it, fairy liquid, whatever is to hand (or mouth!) and check for bubbles. If it's tightened up and still leaking then there is nothing you can do but first off, put the cap back on and check if it leaks around that. If it does then PTFE as suggested might help, other wise some sort of seal but have to get the right size. Normally the cap provides a good seal. Worked on plenty of units that hiss when cap undone so don't be too down heartened.

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    If it is still leaking then welly up the cap with or without PTFE and test. If all else fails then as Joe says there is a tool you can get so the core can be replaced without any fuss or else need to pump it down, replace and vac out so that'd be a job for a pro.

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