Air conditioner blow cold then hot

ID Status Date Year Make Model Transmission Type A/C Controls Public/Private
#16096 Closed Turn on 004 Chevrolet Silverado public

When I first turn the air condition on it is very cold, then at once it start blowing hot air, it keeps changing from hot air to cold air what is my problem

Sparky

I am assuming that you meant to type in that you have a 2004 Silverado? More than likely you have either a faulty temperature door actuator or a broken temperature door. Do you have single zone or dual zone temperature control? If dual which side is the problem on?

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