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XC90 '02–'15 General Forum for the P2-platform XC90 model |
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Nightmare air conditioningViews : 648 Replies : 6Users Viewing This Thread : |
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May 24th, 2022, 15:33 | #1 |
Junior Member
Last Online: Feb 7th, 2023 14:32
Join Date: Sep 2020
Location: newcastle
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Nightmare air conditioning
Lately I'm have issues with both my volvos air conditioning but today it is the xc90s turn so today i was out in the car switched the aircon on and a hissing started from behind the dash didn't think much of it until i noticed a small amount of ice on the dash vent the hissing did stop but then i switched the car off then started it again the hiss started up again then died down I'm just not sure where to start with it
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May 24th, 2022, 21:58 | #2 |
Junior Member
Last Online: Apr 18th, 2024 03:06
Join Date: Aug 2018
Location: Brisbane
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Hissing sound normally means you are low on refrigerant. You will also start getting fog out of the vents since dehumidification is incomplete.
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May 25th, 2022, 10:04 | #3 |
Junior Member
Last Online: Feb 7th, 2023 14:32
Join Date: Sep 2020
Location: newcastle
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Great thanks for the info I'll get it booked in for a recharge i didn't think of this as it was still blowing cold thanks again
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May 25th, 2022, 10:46 | #4 |
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Last Online: Yesterday 23:35
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Location: L/H side
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Since 2010 when the AC laws changed they will have to do a full working pressure ( not vaccum ) leak check and fix that before recharging ...
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May 26th, 2022, 03:11 | #5 |
Junior Member
Last Online: Apr 18th, 2024 03:06
Join Date: Aug 2018
Location: Brisbane
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You would want them to check for leaks anyway, as it's pointless to add refrigerant if it leaks out again. Most shops will do a vacuum check anyway as they want to add the right amount of refrigerant.
XC90 comes with dye so they'll just use a UV lamp to check for leaks. There's probably a leak, and the most likely candidate is a cracked condensor, which is fairly cheap and easy to replace. |
May 26th, 2022, 08:10 | #6 |
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May 26th, 2022, 09:51 | #7 |
Junior Member
Last Online: Apr 18th, 2024 03:06
Join Date: Aug 2018
Location: Brisbane
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Correct. It's the first sign. It will work, just not as well as it should. Luckily the XC90 AC system is crazy oversize, with about 4x the refrigerant of a small car.
Hissing, fog and frost out of the vents, but still cooling are signs of low refrigerant. |
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