White smoke with ac on

[bull5]

Hi
I Have a problem. When I turn on my AC white smoke is coming out from vents. The AC is cooling down too much also...

What can be the problem?

Thanks for your help

 

[spike10940]

Blower motor resistor or wires to it melting....I had an Avalanche catch on fire due to that. White smoke coming out of vent was what I saw before flames came out from under the dash.

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[bull5]

Is not smelling like something is burning.

 

[spike10940]

I didn't smell anything either until it was too late...hopefully that isn't your problem and someone else can offer a solution.

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[ski.dive]

Fog or smoke coming out the air vents is caused by cold dry air coming in contact with warmer, more moist air near the air conditioner. If the air temperature near the unit is below the dew point, this causes water vapor to form in the air and condense into water droplets, thus causing the fog or smoke...Solution is to turn up your A/C temp.

 

[bull5]

So my ac is running too strong....

 

[ski.dive]

Yes, click the a/c temp. up a couple of clicks...

 

[bull5]

But is strange... is the first time happening. Today was 38 Celsius hand happen in the highway. At the beginning the AC was not so powerfull but after some hours in the motorway the AC start to cool down like hell.... .

 

[ski.dive]

If It's running cold at high RPM's [hiway speeds]=Check your fan clutch, it might not be doing it's job at idle and low speeds.

 

[bull5]

Can be a clogged ac water drain tube? Someone knows where is located?

 

[harveyspecter]

Hi
I Have a problem. When I turn on my AC white smoke is coming out from vents. The AC is cooling down too much also...

What can be the problem?

Thanks for your help

Click this link to view more needed tools.

Maybe you are at a highly humid area, then there is a chance that it may be caused by water vapor from condensation.