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Aircon compressor switching off and on in short intervals

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive P2 platform cars sold as model years 2001-2007 (North American market year designations).

2001 - 2007 V70
2001 - 2004 V70 XC (Cross Country)
2004 - 2007 XC70 (Cross Country)
2001 - 2009 S60
2003 - 2007 S60 R
2004 - 2007 V70 R

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oragex
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Re: Aircon compressor switching off and on in short intervals

Post by oragex »

precopster wrote: 26 Dec 2018, 15:04 I have icy lines to evaporator and a very high reading for evap temp such as 40degC so the above makes perfect sense. Have to look up access to that sensor on Vida if it's in there.
Does anyone know how to get to that sensor? Killing 2 birds here......

This is what I did on my P2. I put a sensor from a 2007up, those had black tip sensors (instead of blue tip ones)

Side note, when this sensor goes bad, the compressor spins like a squirrel not stop (reason for overcooling and frozen lines, blocked evaporator airflow, etc). Having the compressor run non stop like this for months (years) doesn't help the system. It may damage some valves, wear the compressor, block sections, etc. Once I replaced my sensor, it would work but not cool strong enough especially in the hottest days. Trying removing refrigerant, refilling, no improvement. I then went for the ghetto fix in the second video (total cost: $0.002 for a piece of tape) - however I use this only in summer, in winter I place the sensor back in place





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