I had to replace my battery in my 2000 lincoln and now the air conditioner doen't work. It worked fine before the battery change. It blows hot air.

please see the topics in www.aa1car.com and fix it

God bless you

Blowing hot air when set to A/C is almost always a stuck blend door, dead blend door actuator, or a cracked or disconnected blend door actuator vacuum line. The blend door is inside the a/c ducting under the dash, but the actuator will be accessible outside the ducting.

You need a scanner to diagnose,not a code reader.

The DATC Module ( Dual Automatic Temperature Control Module) is a possible

check the sensor in the dash near the controls looks like a tiny vent see if it has dust build up

UNDER THE HOOD TOWARDS THE FIREWALL YOU WILL SEE A HOT WATER CONTROL VALVE.. IN LINE WITH HEATER HOSES... CONFIRM IT CHANGES WHILE SOMEONE ELSE IN THE CAR CHANGES FROM HOT TO COLD.. IF DOES NOT CHANGE THEN THERE IS YOUR PROBLEM...IF DOES CHANGE THEN THE NEXT COMMON PROBLEM IS WHAT THEY CALL THE BLEND DOOR ACTUATOR...THESE ARE LITTLE DOORS IN THE DASH THE DIVERTS AIR IN THE DIRECTION YOU CHOOSE...THIS IS A MAJOR JOB TO REPLACE.. NOT FOR THE DIY

you need to change drivers side temp door actuator then disconnect battery for 5 seconds and reconnect after changing the part, turn key on for 60 seconds with touching heater control to allow actuator to program and then it will work.

compressor or receiver/dryer or condensor may need to be replaced. Further testing will have to be done. Look into your sight glass and see if there is any bubbles in the glass, or if glass is extremely foggy. If so, you may have air in the system. Check to make sure you are getting power to the compressor.

Sorry need more info,but if air works fine,and cold,but does not blow out of the vents,,look for a vent door actuator motor to be bad.any more help please text me,[email protected]

your thermostat is stuck

BLOWING HOT AIR YOU MAY HAVE A RESTRICTION ON THE SYSTEM, OR MAYBE A REAL BAD LEAK THAT UR FREEON IS ALL GONE,