Air conditioning not cooling

[mrsfbinc]

The air conditioner in my malibu will slightly cool but then turns off and on randomly. Even when it is on, it takes forever for the air to get cool. What is going on. The mechanic at the dealership said it was the control head, will be $350 to fix. Is this a fair price?

[globe199]

Had this exact problem three years ago -- it cost around $200 to fix then. It was the controller, and they replaced it. Worked fine for three years, now it's happening again! I think $350 may be a bit high.