Daikin Aircon Error Codes & Blinking Lights

Search current Daikin wall-mounted manual rows plus SM-TS3 self-diagnosis rows for RA, SkyAir, VRV, fan-coil, and matrix-only overview codes. Pick the exact model / series when it matches your unit sticker.

Daikin Error Code & Blinking Light Lookup

Search the code first, then narrow by model / series or system type when the same code appears in different Daikin tables.

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Daikin Aircon Error Codes & Blinking Lights

Daikin Error Code & Blinking Light Lookup

00Normal

A0External protection device activated

A1Indoor PCB defectiveness

A1Malfunction of indoor unit PCB

A3Drain level control system abnormality

A4Malfunction of freezing protection

A5Freeze-up protector

A5High pressure control in heating or freeze-up protection control in cooling

A5High pressure control or freeze-up protector

A6Fan motor fault

A6Malfunction of fan motor

A7Malfunction of swing flap motor

A8Malfunction of power supply or AC input overcurrent

A9Malfunction of electronic expansion valve

AAHeater overheat

ACStop due to low water level

AELow water level or no water supply

AFMalfunction of a humidifier system

AHMalfunction of dust collector or air cleaner

AJMalfunction of capacity setting on indoor unit PCB

C0Malfunction of sensor system

C1Failure of transmission between indoor PCB and sub PCB

C3Malfunction of drain level sensor

C4Faulty heat exchanger temperature sensor

C4Malfunction of liquid pipe thermistor for heat exchanger

C5Malfunction of gas pipe thermistor for heat exchanger

C6Malfunction of fan motor sensor or fan control driver

C7Front panel driving motor fault

C8Malfunction of AC input current sensor system

C9Faulty suction air temperature sensor

C9Malfunction of suction air thermistor

CAMalfunction of discharge air thermistor

CCFaulty humidity sensor

CCMalfunction of humidity sensor system

CEMalfunction of switch box thermistor

CFMalfunction of high pressure switch

CJRoom temperature thermistor in remote controller abnormality

E0Protection devices activated

E1Circuit board fault

E1Defective outdoor unit PCB

E2Missing of earth leakage detection core

E3Actuation of high pressure switch

E4Actuation of low pressure switch

E5Inverter compressor motor or overheat

E5OL started

E6Faulty compressor start up

E6STD compressor motor overcurrent or lock

E7DC fan motor fault

E7Malfunction of outdoor unit fan motor system

E8Overcurrent input

E8Overcurrent of inverter compressor

E9Malfunction of electronic expansion valve coil

EACooling-heating switching error

EAMalfunction of four-way valve or cool/heat switching

ECMalfunction of entering water temperature

EEMalfunction of drain water level

EFMalfunction of thermal storage unit

EHMalfunction of cooling water pump

EJActuation of option protection device

F3High temperature discharge pipe control

F3Malfunction of discharge pipe temperature

F4Wet alarm

F6Abnormal high pressure or refrigerant overcharged

F6High pressure control in cooling

F8Compressor internal temperature abnormality

FAAbnormal high pressure actuation of HPS

FEAbnormal oil pressure

FFAbnormal oil level or shortage of oil

FHAbnormal high temperature of refrigerant oil

FJAbnormal exhaust temperature of engine

H0Malfunction of sensor system of compressor

H0Sensor fault

H1Malfunction of room temperature sensor or humidifier damper

H2Malfunction of power supply sensor

H3Malfunction of high pressure switch

H4Malfunction of low pressure switch

H5Malfunction of compressor motor overload thermistor

H6Malfunction of position detection sensor