[AC]

I've got a problem with my climate control system in the Fairmont.

When its on the windscreen, it sometimes surges, or drops off when braking.
When you turn the fan speed down, it wont go any less than 6.
And when you push the off button, the fan keeps going.

Then when you turn off the car completely... Fans keep running.
Usually solved by flicking the ignition on and off.

I've tried pulling the unit out and checking over it, nothing appears odd.
Except when i put it back in the LCD screen is now very dark.

Any ideas guys ?

Thanks.