A/C Shutting Off Automatically

porterbrown · Posted: Sun Jun 07, 2015 9:32 am Post subject: A/C Shutting Off Automatically

What are possible causes for the A/C to cut out on its own after running for a short bit?
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'90 Westfalia GL Automatic

0to60in6min · Posted: Sun Jun 07, 2015 10:16 am Post subject:

one of the cause is overcharging it...

the other is the pressure sensor is bad

CanStan · Posted: Sun Jun 07, 2015 10:17 am Post subject:

I'm pretty sure when the high-speed rad fan comes on it shuts the A/C off, but unless you are in extreme heat or have cooling system issues that shouldn't be a regular occurance.

djkeev · Posted: Sun Jun 07, 2015 10:18 am Post subject:

You don't give us any details..... Year etc....
But....

Low charge level, though it shouldn't even kick on....

A blockage creating high pressure,
A bad pump,
Icing up,
Bad electrical switch, wire or connection,

What year?
What engine?
R12? r134a? R12a?

Factory in rear?
Aftermarket up front?

Dave
_________________
Stop Dead Photo Links how to post photos

Ghia
http://www.thesamba.com/vw/forum/viewtopic.php?t=392473

Vanagon
http://www.thesamba.com/vw/forum/viewtopic.php?p=6315537#6315537

Beetle
https://www.thesamba.com/vw/forum/viewtopic.php?t=482968&highlight=74+super+vert

porterbrown · Posted: Sun Jun 07, 2015 10:33 am Post subject:

'90 Westfalia WBX rear AC
1 yr old: Compressor, dryer, valve, red tek

Thx!
_________________
'90 Westfalia GL Automatic

djkeev · Posted: Sun Jun 07, 2015 11:32 am Post subject:

Put some gauges on it, that will speak volumes.

I've also read about a disconcertingly high quantity of new expansion valve horror stories.....

Dave
_________________
Stop Dead Photo Links how to post photos

Ghia
http://www.thesamba.com/vw/forum/viewtopic.php?t=392473

Vanagon
http://www.thesamba.com/vw/forum/viewtopic.php?p=6315537#6315537

Beetle
https://www.thesamba.com/vw/forum/viewtopic.php?t=482968&highlight=74+super+vert

morymob · Posted: Sun Jun 07, 2015 1:11 pm Post subject:

Exactly why i never change one 'because it's old' ,only had to take 1 out, cleared plugged strainer, worked normal after that. 5 wbxs so far, also ALL other brands excepy a plymouth voyager ( total pos) never had a failed one, sp personally i think 'change it' is in the bs catagory. As usual no warranty is offered at this time. Gas a bit low can cause shutting off too.


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