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Daikin Service Manuals & Error Codes
7Service Manuals
97Error Codes
2Appliance Types
Daikin Appliance Types
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Top Error Codes for Daikin
CodeTypeDescription
A0Air ConditionerError of external protection device - open or short circuit detected between...A1Air ConditionerIndoor unit PCB abnormality - microcomputer cannot set internal settings.A3Air ConditionerDrain water level system abnormality - float switch OFF detected indicating...A5Air ConditionerFreeze-up protection control or heating peak-cut control activated due to...A6Air ConditionerIndoor unit fan motor abnormality - fan revolution does not increase while...A7Air ConditionerSwing flap motor abnormality/lock - micro-switch position detection cannot...A8Air ConditionerAbnormal power supply voltage - fan motor input voltage is 150V or less, or...A9Air ConditionerElectronic expansion valve coil abnormality - pin input abnormal when...AFAir ConditionerHumidifier or related abnormality - water leakage detected based on float...AJAir ConditionerCapacity setting abnormality - capacity code not in PCB memory and capacity...C1Air ConditionerTransmission error between indoor unit PCB and fan PCB (FBQ only).C4Air ConditionerHeat exchanger (liquid pipe) thermistor abnormality - thermistor disconnected...C5Air ConditionerHeat exchanger (gas pipe) thermistor abnormality - thermistor disconnected or...C6Air ConditionerCombination error between indoor unit PCB and fan PCB - communication data of...C7Air ConditionerFront panel open/close fault on CTXG series.