KHCBN error codes

• 00 No error detected Informational
• 11 Serial communication fault Fault
• 12 Wired remote-control communication fault Fault
• 15 Airflow auto-adjustment incomplete Fault
• 16 Transmission PCB connection fault Fault
• 18 External communication fault Fault
• 21 Unit-number or refrigerant-circuit address setting fault Fault
• 22 Indoor-unit capacity fault Fault
• 23 Combination fault Fault
• 24 Unit-number connection fault Fault
• 26 Indoor-unit address setting fault Fault
• 29 Wired remote-control system connection fault Fault
• 31 Power-supply fault Fault
• 32 Indoor PCB model-information fault Fault
• 33 Indoor-unit motor current fault Fault
• 35 Manual/automatic switching fault Fault
• 39 Indoor fan-motor power-supply fault Fault
• 3A Wired remote-control communication-circuit fault Fault
• 41 Room-temperature sensor fault Fault
• 42 Indoor heat-exchanger temperature sensor fault Fault
• 44 Presence sensor fault Fault
• 51 Indoor fan motor fault Fault
• 53 Drain-pump fault Fault
• 55 Filter-setting fault Fault
• 57 Louver fault Fault
• 58 Inlet-grille fault Fault
• 5U Indoor-unit fault Fault
• 61 Outdoor phase or cable fault Fault
• 62 Outdoor PCB information or communication fault Fault
• 63 Inverter fault Fault
• 64 Active-filter PFC fault Fault
• 65 IPM temperature or L-trip fault Fault
• 6A PCB-display communication fault Fault
• 71 Discharge-temperature sensor fault Fault
• 72 Compressor-temperature sensor fault Fault
• 74 Outdoor-temperature sensor fault Fault
• 75 Suction-gas temperature sensor fault Fault
• 86 Pressure-sensor or high-pressure-switch fault Fault
• 94 Trip warning Fault
• 95 Compressor rotor detection fault Fault
• 97 Outdoor fan motor 1 fault Fault
• 98 Outdoor fan motor 2 fault Fault
• 99 Four-way valve fault Fault
• 9A Expansion-valve coil fault Fault
• A1 Discharge-temperature malfunction Fault
• A3 Compressor-temperature malfunction Fault
• A4 High-pressure malfunction Fault
• A5 Low-pressure malfunction Fault
• AC Actuator temperature fault Fault
• live-all-lamps-blink Restricted function Informational
• live-defrost-lamp Automatic defrost in progress Informational
• live-fault-lamp-fast-blink Fault code display Fault
• live-filter-lamp-3-blinks Air filter cleaning reminder Warning
• live-firmware-lamp-30-minute-blink Indoor-unit firmware update in progress Informational
• live-firmware-lamp-fast-blink WLAN firmware update in progress Informational
• live-plasma-lamp-2-blinks Plasma Air Clean maintenance reminder Warning
• live-plasma-lamp-3-blinks Plasma Air Clean disabled by open intake grille Warning
• live-plasma-lamp-fast-blink Plasma Air Clean unit wet or dirty Warning
• live-timer-lamp-blink Timer clock reset required Warning
• live-wlan-lamp-1-second-blink WLAN registration mode Informational
• live-wlan-lamp-2-second-slow-blink WLAN access point found Informational
• live-wlan-lamp-slow-blink WLAN access-point or communication problem Warning

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