If your vehicle has a Air Conditioner clutch cutout relay, the contacts could be sticking. I had the opposite problem on my 87 Caravan, so I opened the relay and cleaned the contacts. A replace-ment is around $15. There could be a problem in the dashboard controls, but I don't have any experience in that area. ANSWER some cars and trucks are temp control setting sensative on my truck if it is set to cold the ac will run even if it is not on the ac setting try turning up the temp control. Also, on air conditioning equipped vehicles, your windshield defrost setting uses the air conditioner whether the air conditioner is on or not. Make sure that's not what's happening before you tear things apart and spend money on it.
An air conditioner should not smell like smoke when turned on (or when turned off). I would have to suspect that the electrical insulation is burning.
It only stays on when the air flow is turned to defrost. It does this because the air condition has a dryer on it that dries the air which defrosts the windshield better.
Blower fan relay is stuck or fused contacts, replace it
Bc is not enough air in the intake....
form_title= York Air Conditioning form_header= Stay cool with a York air conditioner. Where would you like the air conditioner installed?*= _  Are you replacing an old air conditioner?*= () Yes () No Do you want an extended warranty?*= () Yes () No
start by checking a/c compressor.
because you have too many dead babies in your air conditioner tank
1st option is that the air conditioner has ceased and is dead. There is no 2nd option.
why 2003 ford focus stall when air conditioner is turned on
The most likely cause is an inoperative radiator fan.
An air conditioner works any time the thermostat is set lower than the ambient temperature and the air conditioner is turned on.
Your air conditioner compressor may be seized up. If it is seized up the belt would lock up every time you turn on the air conditioner, causing the car to die.