If you're looking for help fixing your Daikin Air Conditioner, look no further! Our comprehensive Daikin Air Conditioner error code guide will explain common issues, provide tips, and show you how to read your model's error codes.

CODE: A1. 
PROBLEM: Malfunction of indoor unit PCB Malfunction due to noise Defect of indoor unit PCB. 

CODE: A3. 
PROBLEM: Malfunction of drain level control system Drain piping clogging, improper drain piping work Defect of drain pump. Defect of float switch. 

CODE: A4. 
PROBLEM: Malfunction of freezing protection Shortage of water volume Low water temperature setting Defect of 26WL. Defect of water temperature thermistor. 

CODE: A5. 
PROBLEM: High pressure control in heating, freeze-up protection control in cooling Clogged air filter of indoor unit and short-circuit Defect of indoor unit heat exchanger thermistor. 

CODE: A6. 
PROBLEM: Fan motor locked, overload, overcurrent Defect of connector contact Defect of indoor unit PCB Defect of fan motor. 

CODE: A7. 
PROBLEM: Malfunction of swing flap motor Failure of swing flap motorm, Defect of indoor unit PCB Jammed swing mechanism/blade. 

CODE: A8. 
PROBLEM: Malfunction of power supply Overcurrent of AC input, Defect of power supply voltage. 

CODE: A9. 
PROBLEM: Malfunction of electronic expansion valve drive Defect of electronic expansion valve coil, Defect of indoor unit PCB, Defect of connector contact. 

CODE: AA. 
PROBLEM: Heater overheat 26WH is activated. 

CODE: AF. 
PROBLEM: Malfunction of a humidifier system Water leakage of humidifier (option), Failure of swing float switch. Improper drain piping incline. 

CODE: AH. 
PROBLEM: Malfunction of dust collector of air cleaner Defect of dust collecting element Defect of high voltage power supply unit Stained insulator part Defect of indoor unit PCB. 

CODE: AJ. 
PROBLEM: Malfunction of capacity setting (Indoor unit PCB) Capacity setting adaptor is not installed when replacing PCB Defect of indoor unit PCB. 

CODE: C1. 
PROBLEM: Failure of transmission (between indoor unit PCB and fan PCB) Defect of transmission of fan motor control driver. 

CODE: C4. 
PROBLEM: Malfunction of liquid pipe thermistor for heat exchanger Defect of connector contact. Defect of liquid pipe thermistor for heat exchanger. 

CODE: C5. 
PROBLEM: Malfunction of gas pipe thermistor for heat exchanger Defect of connector contact. Defect of gas pipe thermistor for heat exchanger. 

CODE: C6. 
PROBLEM: Malfunction of fan motor control driver Defect of fan motor sensor system Defect of fan motor control driver. 

CODE: C7. 
PROBLEM: Front panel driving motor fault Defect of front panel driving motor Defect of limit switch. 

CODE: C9. 
PROBLEM: Malfunction of suction air thermistor Defect of connector contact Defect of thermistor for suction air. 

CODE: CA. 
PROBLEM: Malfunction of discharge air thermistor Defect of connector contact. Defect of thermistor for discharge air. 

CODE: CC. 
PROBLEM: Malfunction of humidity sensor system Defect of connector contact Defect of humidity sensor.

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