Aircon blowing vapor

[Turbobrick]

Whenever I open my vents for outside air, my A/C blows out some mist like vapor as well. Issit just condensation from the humid outside air or should I be worried???

 

Doesn't happen if the recirculation is closed.

[Magfocus]

I think its quite normal as it happened to my prev car as well..think its just condensation from the humid Singapore air. Dont think there is anything to be worried about

[Turbobrick]

Wah, aircon too cold siah

 

Plus Vkool, I'm really kool

[Magfocus]

Oh no wonder lah, thats y there is vapour mah..the sudden blast of COOL air and the warm humid air...

[Turbobrick]

No lar, the other way round. Sudden burst of humid air into cold air Open vents mah

[Magfocus]

Oh yah

 

eheheheh....say wrongly...type too fast lah

[Stepper]

last time my car have the same problem, turn out to be thermostat(a box containing a piece of chip) spoil cannot control temp so compressor on all the time, therefore too cold therefore the mist.

[Turbobrick]

I don't think there's a cabin thermostat as my has not auto climate control. When I turn the temp control to warmer the air becomes less cool as well, so the shutters for the temp control is still ok.

 

Thanks for the tip!

 

Cheers!

[Ek3stage]

For those curious, if always got vapor no matter what, likely the heater core is corroded and spoilt. This is very uncommon but if it happens it means one never regulate the temp often, always leave it cold means condensation will occur and cause corrosion.