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C30 / S40 & V50 '04-'12 / C70 '06-'13 General Forum for the P1-platform C30 / S40 / V50 / C70 models |
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Air Conditioning Compressor QuestionViews : 410 Replies : 4Users Viewing This Thread : |
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Nov 22nd, 2020, 18:23 | #1 |
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Air Conditioning Compressor Question
Evening all
Hope everyone is keeping well? I have a strange problem with my air conditioning compressor. When i turn the a/c on, the clutch on the compressor engages for approx 10 seconds, cuts off for approx 10 sec, then turns back on for 10 secs, and then cycles like that continually. I have checked the clutch gap and it is correct at 0.3mm, so would welcome some advice on what could be causing the problem? Thanks James
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2009 C30 T5 230 Geartronic R-Design SE Sport. Passion Red, Electric Black Leather Seats, Winter Pack, Sunroof, BLIS, Dynaudio, Bluetooth, Laminated Windows, Front and Rear PDC, MIDIR 18" Alloys |
Nov 22nd, 2020, 19:28 | #2 |
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I think this can be caused by low gas, may need recharging
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Nov 22nd, 2020, 21:49 | #3 |
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Perfect thankyou
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2009 C30 T5 230 Geartronic R-Design SE Sport. Passion Red, Electric Black Leather Seats, Winter Pack, Sunroof, BLIS, Dynaudio, Bluetooth, Laminated Windows, Front and Rear PDC, MIDIR 18" Alloys |
Nov 23rd, 2020, 10:30 | #4 |
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This is perfectly normal behavior for an a/c compressor, the system is designed to maintain a certain pressure and it does this by 'cycling' the compressor on and off which also saves fuel use. The pauses between on/off vary greatly according to the load on the system - big pauses in winter and short ones in summer heavy traffic etc. If a compressor is running continuously then that is an indication of low gas and the compressor scavenging for refrigerant (basically struggling to achieve the required pressure).
The best home-test for an a/c systems health is to check the air temp at the vents with the system set to the lowest temperature, a good indicator is a steady 5 to 8 deg C at the vents.
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Nov 23rd, 2020, 12:42 | #5 |
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Great thankyou, i'll test the temp and hopefully show everything is ok
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