Aircon issues...
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- 89of480
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Aircon issues...
Hello again everyone
I had my R134A aircon regassed after the MOT, considering it was literally completely empty and has been for a long time, the car held the vacuum for 10 minutes and then took the gas like a champ, giving me ice cold aircon and a big smile! the idle increased and the relays clicked and the compressor whirred and I was very happy, although later in the evening shortly after, and today too I noticed the compressor isn’t coming on anymore and the air isn’t coming out any colder than the vent setting. Now I’m sure there is a low pressure switch on these to prevent damage to the compressor so I’m guessing the gas has leaked out through the compressor slowly after it was engaged? Especially as there was literally a 0 reading for leakage on the machine at the garage? It’s a shame and a waste of £60 of gas
Thanks everyone!
I had my R134A aircon regassed after the MOT, considering it was literally completely empty and has been for a long time, the car held the vacuum for 10 minutes and then took the gas like a champ, giving me ice cold aircon and a big smile! the idle increased and the relays clicked and the compressor whirred and I was very happy, although later in the evening shortly after, and today too I noticed the compressor isn’t coming on anymore and the air isn’t coming out any colder than the vent setting. Now I’m sure there is a low pressure switch on these to prevent damage to the compressor so I’m guessing the gas has leaked out through the compressor slowly after it was engaged? Especially as there was literally a 0 reading for leakage on the machine at the garage? It’s a shame and a waste of £60 of gas
Thanks everyone!
‘95 Celebration Auto - №89 of 480 - Flame Red Metaillic
‘17 BMW M140i Shadow Edition - Black Sapphire Metallic
‘17 BMW M140i Shadow Edition - Black Sapphire Metallic
Re: Aircon issues...
So first of all, 10 minutes on vacuum isn't enough.
My bloke holds them for an hour - Yes, it's a bit more inconvenient for the garage, but it firstly makes sure they get ALL the gas out, and is likely to show up any minor leaks.
Next, did they add any UV die when they gassed? Again, my aircon bloke does it as standard practice, makes tracing leaks much easier.
Also, if you've not run aircon for a while, you should have hopefully been advised to use it constantly for a month or so? The seals in the system are going to need lubricating, which is done when the system gets used.
My bloke holds them for an hour - Yes, it's a bit more inconvenient for the garage, but it firstly makes sure they get ALL the gas out, and is likely to show up any minor leaks.
Next, did they add any UV die when they gassed? Again, my aircon bloke does it as standard practice, makes tracing leaks much easier.
Also, if you've not run aircon for a while, you should have hopefully been advised to use it constantly for a month or so? The seals in the system are going to need lubricating, which is done when the system gets used.
- 89of480
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- Joined: Fri Aug 28, 2015 2:36 pm
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Re: Aircon issues...
Hmm, okay, I will have to go back to him at the garage and get him to hold it for longer next time, I’m guessing if I still get no leaks showing up on the machine then it might be a problem with the gas leaking out of compressor itself?jifflemon wrote: ↑Sun May 20, 2018 6:50 pmSo first of all, 10 minutes on vacuum isn't enough.
My bloke holds them for an hour - Yes, it's a bit more inconvenient for the garage, but it firstly makes sure they get ALL the gas out, and is likely to show up any minor leaks.
Next, did they add any UV die when they gassed? Again, my aircon bloke does it as standard practice, makes tracing leaks much easier.
Also, if you've not run aircon for a while, you should have hopefully been advised to use it constantly for a month or so? The seals in the system are going to need lubricating, which is done when the system gets used.
I thought it was standard practice for them to add dye to trace leaks, but then I’m not surely he did to be honest; I haven’t had a chance to check under the bonnet to look for any traces though.
Yeah, I am fully aware of running the aircon constantly for the seals, it’s just a shame the gas disappeared within the same day so now the system isn’t running anymore But then there wasn’t any gas in the car when I bought it 3 years ago, I thought it would be worth a try and work out where I was standing with the aircon system.
Thanks
‘95 Celebration Auto - №89 of 480 - Flame Red Metaillic
‘17 BMW M140i Shadow Edition - Black Sapphire Metallic
‘17 BMW M140i Shadow Edition - Black Sapphire Metallic
Re: Aircon issues...
well, it kinda depends....
Air con runs at pretty high pressure; Vacuum is often much lower.
I've known people use compressed air to hunt down leaks - It raises eyebrows, as you're potentially introducing moisture into the system. The counter argument is that if the system has leaked, its open to atmosphere, thus open to moisture.
Air con runs at pretty high pressure; Vacuum is often much lower.
I've known people use compressed air to hunt down leaks - It raises eyebrows, as you're potentially introducing moisture into the system. The counter argument is that if the system has leaked, its open to atmosphere, thus open to moisture.
- 89of480
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Re: Aircon issues...
I did find a cheap, second hand compressor for sale, is it worth getting this or trying to conduct more testing first? I saw Scandix had a complete seal set available too, I’m guessing this is also a good buy?jifflemon wrote: ↑Mon May 21, 2018 6:02 pmwell, it kinda depends....
Air con runs at pretty high pressure; Vacuum is often much lower.
I've known people use compressed air to hunt down leaks - It raises eyebrows, as you're potentially introducing moisture into the system. The counter argument is that if the system has leaked, its open to atmosphere, thus open to moisture.
Thanks!
‘95 Celebration Auto - №89 of 480 - Flame Red Metaillic
‘17 BMW M140i Shadow Edition - Black Sapphire Metallic
‘17 BMW M140i Shadow Edition - Black Sapphire Metallic
Re: Aircon issues...
it depends on a number of factors....
How cheap is cheap? Is it an R12 or an R134 (cos I bet they've just listed it as a compressor)
Seal set is good, but probably overpriced (everything at skandix is!)
How cheap is cheap? Is it an R12 or an R134 (cos I bet they've just listed it as a compressor)
Seal set is good, but probably overpriced (everything at skandix is!)
- 89of480
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Re: Aircon issues...
Well, I believe the part is second hand, and unfortunately it doesn’t list what refrigerant is used, but it does give the part numbers 3485087, 1015 485087 andSKU 1110147.
It’s listed for £30 for sale, I found a couple brand new, aftermarket ones, and they’re about £400.
I think the seal set on Scandix was about £20 or £30 too, but as you say, everything on there is over priced!
Thanks for following my instagram by the way
‘95 Celebration Auto - №89 of 480 - Flame Red Metaillic
‘17 BMW M140i Shadow Edition - Black Sapphire Metallic
‘17 BMW M140i Shadow Edition - Black Sapphire Metallic
Re: Aircon issues...
that'll be the R134 version (a SD7V16, the r12 is an SD709)
- 89of480
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Re: Aircon issues...
Cool! Seeing as the car is already R134A, I guess it’s wirnr a punt for £30?
‘95 Celebration Auto - №89 of 480 - Flame Red Metaillic
‘17 BMW M140i Shadow Edition - Black Sapphire Metallic
‘17 BMW M140i Shadow Edition - Black Sapphire Metallic