Hissing from vents

[marcuscorvanius]

Hey all

SO last night i noticed that when i turned on my A/C fan that i was getting a loud hissing from the vents. If i increased the temp it then stopped after getting to a hi temp. With the A/C on it made the noise irrespective of what level of fan it was on and also it made it for a slight while after switching it off.

Does this sound like it needs a re-gas or something more sinister? To be honest the air still felt fairly cold but no where near as when i bought it

[Fr0d]

Try recalibrating the hvac, to see if that helps.

[mattvrestate]

Sounds like it needs a regass

Air in the A/C pipes instead of A/C gas

[phil5556]

Mine sounded like this, regassed it and it's gone away.

For now, although I think I've got a small leak as already the Aircon isn't as good as it was.

[jong123]

++++ For a regas.