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S40 / V40 '96-'04 General Forum for the Volvo S40 and V40 (Classic) Series from 1995-2004. |
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AC switching on/offViews : 865 Replies : 5Users Viewing This Thread : |
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Nov 24th, 2021, 11:48 | #1 |
Junior Member
Last Online: Apr 12th, 2024 12:12
Join Date: Sep 2018
Location: Heers
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AC switching on/off
Hi all,
V40 19 DI 2002 My car AC does strange things. The AC switch on the control panel changes from on (green led) to off (red led) without touching .At some moment like 10 times a min. Later on it stays on for a period and then starts the chrismas tree again. For me there is no logic in it.It is pure random .Any idea ? |
Nov 24th, 2021, 12:14 | #2 |
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Last Online: Dec 26th, 2021 13:42
Join Date: Dec 2013
Location: Crewe
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See if the ac compressor clutch plate is cycling in and out at the same time.
If so, that's normally low gas.
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2002 S60 SE D5 Manual 209000 miles |
Nov 25th, 2021, 17:08 | #3 |
Master Member
Last Online: Jul 28th, 2023 17:19
Join Date: Jan 2012
Location: batley
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Have you got any of the heater/direction controls set to 'auto' by any chance ?
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Nov 26th, 2021, 17:40 | #4 |
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Last Online: Yesterday 17:46
Join Date: Jun 2018
Location: Presteigne, mid Wales
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Sounds like the compressor clutch needs re-shimming...
https://volvoforums.com/forum/volvo-...shimming-6665/
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1998 V70 2.5 Auto & Supercharged Mercedes C Class... |
Nov 28th, 2021, 18:49 | #5 |
Junior Member
Last Online: Apr 12th, 2024 12:12
Join Date: Sep 2018
Location: Heers
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Yes the controls always stay on AUTO. Only by defrost I turn to Front windows.I let it be 24°c winter or summer.
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Nov 29th, 2021, 16:27 | #6 |
Master Member
Last Online: Jul 28th, 2023 17:19
Join Date: Jan 2012
Location: batley
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Mine switches on and off for a few seconds at a time if set to auto, try setting it to something else.
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