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Author Topic: Aircon - going to take a risk today  (Read 2695 times)

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pscocoa

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Aircon - going to take a risk today
« on: 18 March 2020, 08:35:23 »

a) going out amongst human kind and others
b) having Halfords do an aircon diagnostic for £30

which is the bigger risk?

There is zero gas in there so must be a leak or compressor issue but compressor would not engage anyhow if no gas I think
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biggriffin

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Re: Aircon - going to take a risk today
« Reply #1 on: 18 March 2020, 09:32:15 »

You would be better going to the local garage, they will evap the system, then pressure test, with a dalek, it's a better option than Halfords youff no1, plugging a can and gauge onto the thing.
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amba

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Re: Aircon - going to take a risk today
« Reply #2 on: 18 March 2020, 09:35:48 »

Don't waste your £30 at Numpty Land...get somebody to do a proper pressure and leak test for no much more then you will know exactly what needs to be dealt with.

On option A...." You feeling Lucky,ah !! "
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Marks DTM Calib

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Re: Aircon - going to take a risk today
« Reply #3 on: 18 March 2020, 09:41:13 »

a) going out amongst human kind and others
b) having Halfords do an aircon diagnostic for £30

which is the bigger risk?

There is zero gas in there so must be a leak or compressor issue but compressor would not engage anyhow if no gas I think

Correct, there needs to be above a minimum pressure or below a maximum pressure, plus a demand, for the compressor to operate  :y

If there is zero gas then there is a leak
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pscocoa

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Re: Aircon - going to take a risk today
« Reply #4 on: 18 March 2020, 09:59:54 »

You would be better going to the local garage, they will evap the system, then pressure test, with a dalek, it's a better option than Halfords youff no1, plugging a can and gauge onto the thing.

Went to a local garage last year and they did not do the right thing - when I got a mobile chap round he said there is no way they could not have noticed such a massive leak - that was on the Phaeton. Thing is this is supposed to be a diagnostic check and not a re-gas so I am hoping it is the least cost option to tell me where the leak is
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Marks DTM Calib

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Re: Aircon - going to take a risk today
« Reply #5 on: 18 March 2020, 10:20:16 »

Went to a local garage last year and they did not do the right thing - when I got a mobile chap round he said there is no way they could not have noticed such a massive leak - that was on the Phaeton. Thing is this is supposed to be a diagnostic check and not a re-gas so I am hoping it is the least cost option to tell me where the leak is

Will be interesting to see what they do, it should be a visual check followed by a dry Nitrogen charge and some indicator dye...................trouble is I don't see Halfords doing that  :-\
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pscocoa

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Re: Aircon - going to take a risk today
« Reply #6 on: 18 March 2020, 10:55:38 »

Went to a local garage last year and they did not do the right thing - when I got a mobile chap round he said there is no way they could not have noticed such a massive leak - that was on the Phaeton. Thing is this is supposed to be a diagnostic check and not a re-gas so I am hoping it is the least cost option to tell me where the leak is

Will be interesting to see what they do, it should be a visual check followed by a dry Nitrogen charge and some indicator dye...................trouble is I don't see Halfords doing that  :-\

That is what they are supposed to do - they did a simple free of charge test with a gauge at a store yesterday to confirm there was no gas at all. Today I am at the Autocentre for the proper jobbie hopefully. VX want £80 just to look at it.
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Re: Aircon - going to take a risk today
« Reply #7 on: 18 March 2020, 10:56:50 »

Groupon had a good offer a few months ago whereby I went to ATS Euromaster for a diagnosis and re-gas, on the understanding that if they could not re-gas the system, I would get my money back. They found a leak and I got my money back.
Check with Groupon as they could well be offering the same deal, especially as we are now entering the warmer weather.

Ron.
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henryd

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Re: Aircon - going to take a risk today
« Reply #8 on: 18 March 2020, 11:12:30 »

Went to a local garage last year and they did not do the right thing - when I got a mobile chap round he said there is no way they could not have noticed such a massive leak - that was on the Phaeton. Thing is this is supposed to be a diagnostic check and not a re-gas so I am hoping it is the least cost option to tell me where the leak is

Will be interesting to see what they do, it should be a visual check followed by a dry Nitrogen charge and some indicator dye...................trouble is I don't see Halfords doing that :-\

I can't see Halfords having either of the above in the first place ::)
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pscocoa

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Re: Aircon - going to take a risk today
« Reply #9 on: 18 March 2020, 12:59:14 »

Went to a local garage last year and they did not do the right thing - when I got a mobile chap round he said there is no way they could not have noticed such a massive leak - that was on the Phaeton. Thing is this is supposed to be a diagnostic check and not a re-gas so I am hoping it is the least cost option to tell me where the leak is

Will be interesting to see what they do, it should be a visual check followed by a dry Nitrogen charge and some indicator dye...................trouble is I don't see Halfords doing that :-\

I can't see Halfords having either of the above in the first place ::)

When I dropped it off they said they would be doing a nitrogen test to avoid unnecessarily discharging aircon gas into atmosphere. They have just phoned to say that they cannot find any leak and given that I had it gassed less than 2 years ago there is no evidence of any dye having been used n the system at all. So they will re-gas and see how it goes - could be a very slow leak but dye will show this up.
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Re: Aircon - going to take a risk today
« Reply #10 on: 18 March 2020, 14:12:57 »

Both cars should be under warranty. Start there ;)
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pscocoa

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Re: Aircon - going to take a risk today
« Reply #11 on: 18 March 2020, 14:22:19 »

Car is ready - they say that following the re-gas they have Vac tested it and nothing showing. Fingers crossed.
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Entwood

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Re: Aircon - going to take a risk today
« Reply #12 on: 18 March 2020, 18:02:33 »

A vac check is not sufficient as a test .. it works in totatally the "wrong" direction so can only detect major problems .. it cannot detect a small leak at a joint as it sucks the joint tight ... whereas normal pressure forces it apart ....... applying suction (Vac) to a system that runs at around 14bar is useless... which is why a PRESSURE check with dry nitrogen is the only thing that works..... not rocket science but appears to be beyond the numpties who try to sell it.. and often succeed .. :(
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Re: Aircon - going to take a risk today
« Reply #13 on: 18 March 2020, 19:48:54 »

A vac check is not sufficient as a test .. it works in totatally the "wrong" direction so can only detect major problems .. it cannot detect a small leak at a joint as it sucks the joint tight ... whereas normal pressure forces it apart ....... applying suction (Vac) to a system that runs at around 14bar is useless... which is why a PRESSURE check with dry nitrogen is the only thing that works..... not rocket science but appears to be beyond the numpties who try to sell it.. and often succeed .. :(


 Well said sir, but you can't tell some air-con specialist that.. about 5-8psi usually works, and if you've got no dye, a soapy solution using a spray bottle helps find leaks.
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Re: Aircon - going to take a risk today
« Reply #14 on: 18 March 2020, 19:56:10 »

Groupon had a good offer a few months ago whereby I went to ATS Euromaster for a diagnosis and re-gas, on the understanding that if they could not re-gas the system, I would get my money back. They found a leak and I got my money back.
Check with Groupon as they could well be offering the same deal, especially as we are now entering the warmer weather.

Ron.

Yes the Groupon/ATS aircon deal is always worth looking out for!  :y
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