Thread: Air Con: - Climate control lost control
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Old Sep 14th, 2009, 21:01   #5
wimorrison
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Last Online: Dec 14th, 2021 16:39
Join Date: Jan 2009
Location: Hampshire, nee Scotland
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The aircon on the XC90 has the same controls as the V70 and I had a similar issue last year. It transpired it was the thermocouple that monitors the air temp pulled from the cabin. This is located immediately behind the little grill above the drivers temperature setting and looks like a loose wire.

Now thw bad news - this cannot be replaced on its own, but LB Volvo sold me a complete 2nd hand Climate control unit for £65 (Volvo Price £700 + fitting). It takes 10 mins to fit and it cured my issues - and Volvo do not have to do software load either (just disconnect battery before replacing the unit)

http://www.thomsonlocal.com/LB-Volvo...mpanyinfo.html

To test if this is at fault, blow some COLD air into the grill that I mention witrh the car set at 20 ish. The air coming from the vents shoudl warm up, then blow hot air at the grill - guess what, cold air should come out

May not be your issue, but this may help some others

Iain
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