My 2002 chrysler town and country is blowing extremely hot air out of driver side vents even when temp set to 59 degrees...other vents work according to what they are set on. I have ATC...PLEASE HELP!

Right blend door actuator failure

sorry I can't give you a hard fast answer because I am having 38C days and can wear T shirt 12 months of the year, but check your thermostat first, if stuck open it will never get hot, check for blockages in the heater hoses and lastly, your tap operation

Sounds like more than one issue. 17 year old Chrysler, so it is not a surprise. Blend door actuator, HVAC power head are possibilities. If this is still powered by vacuum lines, they could have leaks at this age and nothing will work right. This all could require dash removal of various degrees to test and repair.

more than likely....blower motor resistor, normally located next to blower motor passenger
side under dash 2 screws & a plug

This problem could be that the Air Con needs to be Re-gassed or there is a problem with the Pump - probably the aircon clutch, but the pumps do fail.

Temperature gauge should not be in the red unless you are talking about the temp control. Check hoses to heater core for a temp difference once the vehicle has reached operating temp. If a big differenced is noticed heater core may be plugged and may have to be flushed or replaced. Do the same with radiator hoses could also be a thermostat

yes, check the freon level, its getting low thats why its working like that.

I have a 1998 and had the same problem It ended up being the control itsel. I changed the control and it worked.

u will need to repair the passenger side air temp control blend door, either the door is stuck or the small electric actuator that moves it is defective.

It is not a coolant leak. Nice try though. It is possible that the infra red temp sensor is faulty, also it may be a mode door(directs air flow in the heater box) or a mode door actuator. Your dealer can test for proper door actuation, and can also check temperature difference, some is not uncommon, but it depends on the temp setting, is this a dual zone, or tri-zone atc unit?