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997.2 air conditioning noise when stopped.

S

stephenkershaw

PCGB Member
Member
Hi there chaps. Anyone had an issue with a boiling gas type noise once the engine has been turned off? It comes from the A/C vents I think. It stops after a minute, but I wondered if it was the a/c gas needing to be topped up. Anyone else had a similar experience?
 
That’s how air conditioning works… The refrigerant boils in the evaporator, having passed through a restriction, taking heat out of the air passing through the core. If the vents blow cold air, I’d say there is no problem. I’m not a Porsche owner, so don’t know where the evaporator is located but it is usually in the bulkhead close to the vents. My Mercedes makes a similar noise briefly after shutdown.
 
Thanks for replying. I understand how a/c works. It just that the noise is new and wondered if anyone had had the same experience and what it led to.
 
Are you sure it is a squeaky fan? Sounds like a different issue to the boiling noise. Mine used to have a squeaky noise when on, but it was just that it was low and needed re-gassing.
 
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