Hot air from aircon

[MasterGMT]

Hi guys, need help!

hot air from Aircon vents! What could triggered hot air from Aircon vents? I recall setting temp to 23 or 24 and/or setting the Aircon to Auto and hot air came out instead of cold air despite my attempts to lower the temp setting to 16. I have to stop my car at red lights to restart engine to get cold air back. Thanks.

[Tomo1388]

I encounter once also but ever since no problem,duno why

[dyeeng]

my man, did you hit the "REST" button by mistake?

[MasterGMT]

No leh, never touch "rest" function. The Aircon just went crazy, the very morning after I sent the car for grooming and whatever Aircon treatment which smelled remarkably fresh. Perhaps the Aircon treatment Hadley some residue on the thermostats or whatever and screwed up the temperature setting.

[dyeeng]

bro, you may have low pressure in your aircon system. Usually a refill of the refrigerant should solve this. Otherwise, visit a ws and ask them to check the aircon duovalve, which controls the amount of hot/cold air thru your vent..

[MasterGMT]

Ok bro. Many thanks for your advise. Will haunt my mechanic this sat.