2004 Chrysler Concorde No hot air & No cold air

Hi bschramm, Thank you for the donation. Is your system Manual or Auto HAVC ? Have you tried to retrieve for trouble codes? DIAGNOSIS AND TESTING - ERRATIC OPERATION OF HVAC SYSTEM Erratic operation of the A/C and heater systems including: "¢ Lack of cold air "¢ Lack of hot air "¢ Unrequested mode change (ATC only) "¢ No control of mode or temperature control or tapping blend door noise These symptoms may be accompanied by the following Diagnostic Fault Codes (DTC's): "¢ Blend door feedback "¢ Blend door stall "¢ A/C Control Mode door input shorted to battery "¢ In-car temp sensor failure "¢ ATC messages not received "¢ Mode door stall Check for the presence of DTC's with the DRB III(R). If the symptoms and or DTC's listed above are present, perform the following Repair Procedure: With the vehicle at room temperature 10 to 27 ° C(50 to 80 ° F), pull the M-1 fuse for five minutes to erase any DTC's. Replace the fuse and start the vehicle to recalibrate the HVAC system. Operate the vehicle and A/C heater system to verify that symptoms and or DTC's are gone. If tapping noise or blend stall/feedback DTC's re-occur, additional diagnosis will be required. The M-1 fuse is Fuse # 19 (15 A) in underdash fusebox. It is the one circled in Red.