V70: General - 2014 V70 A/C suddenly working again

morsing · May 26th, 2024, 13:02

Our V70 has had problems for some years now, and been topped up by three different garages all saying there was no leak. Every time it would work for a few months, but come next spring, no cold air.

It was meant to have this "leak" checked once again next week, but I randomly turned it on yesterday and freezing cold air come out!

So I'm now thinking it's a sensor, relay, switch etc, that's intermittently failing. Are there any standard culprits to look at?

P.S. Compressor clutch sounds like a culprit. The problem is that as it is currently working, I can't really test that for not working.

Thanks

Georgeandkira · May 26th, 2024, 22:58

All I can tell you is the sensor I've seen listed most in 'consumer grade' parts sites is the one which prevents the system from activating if it detects no pressure.
I do believe the system has to be evacuated to change it as it's tapped physically into a refrigerant line.
Don't know the name of it.

May 26th, 2024, 13:02	#1
morsing Premier Member Last Online: Jun 10th, 2024 19:33 Join Date: Dec 2001 Location: Aylesbury View Photos By: morsing	2014 V70 A/C suddenly working again Our V70 has had problems for some years now, and been topped up by three different garages all saying there was no leak. Every time it would work for a few months, but come next spring, no cold air. It was meant to have this "leak" checked once again next week, but I randomly turned it on yesterday and freezing cold air come out! So I'm now thinking it's a sensor, relay, switch etc, that's intermittently failing. Are there any standard culprits to look at? P.S. Compressor clutch sounds like a culprit. The problem is that as it is currently working, I can't really test that for not working. Thanks __________________ --- '89 Volvo 240GLT B230E/AW70 '14 Volvo V70 SE D4/M66 FWD '70 Chevrolet Chevelle Malibu '95 Saab 9000 CSE 2.0 Turbo Auto Last edited by morsing; May 26th, 2024 at 13:10.

May 26th, 2024, 22:58	#2
Georgeandkira Premier Member Last Online: Yesterday 14:07 Join Date: Feb 2009 Location: Hackensack	All I can tell you is the sensor I've seen listed most in 'consumer grade' parts sites is the one which prevents the system from activating if it detects no pressure. I do believe the system has to be evacuated to change it as it's tapped physically into a refrigerant line. Don't know the name of it.

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