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Hissing sound when ac is turned on
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Jun 15th, 2022, 23:25
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Constantinos
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Join Date: Feb 2022
Location: London
Quote:
Originally Posted by
dambat
There's a recent post on this. It's an early sign of low refrigerant due to bubbles in the expansion valve.
The refrigerant was refilled about 6 years ago, but it might have gone dry since then
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