Daikin LXE10E -A33 LXE10E -A33A Alarm display and back-up function

Note 1) The alarm LED does not blink when E code alarm is generated.
To check if any alarm generates, use alarm indication function in the section "1. Current indication
mode" of "3.3.2 Mode operation procedure.
2) In the event error E101, E103, E107, or E109 occurs 10 times, the system will go to 4-hour standby mode.
When both evaporators have malfunctioned, the unit stops.
3) In case of sensor malfunction, the judgment for sensor malfunction does not perform for 3 minutes before the pressure or temperature reaches to the specified value.

Alarm grouping = Permanent stop
Alarm code = F101
Alarm content = HPS activated within 30 seconds after operation start or protection device activated 5 times at start-up operation or Fuse 1 brown (Refer Page 7-7).
Action with alarm = Unit stops

Alarm grouping = Permanent stop
Alarm code = F109
Alarm content = Low- pressure drops to–85kPa or lower within 2 seconds after operation start
Action with alarm = Unit stops

Alarm grouping = Permanent stop
Alarm code = F111
Alarm content = HPS does not activate when it reaches to the set value
Action with alarm = Unit stops

Alarm grouping = Permanent stop
Alarm code = F301
Alarm content = Temperature setting required (SRAM failure)
Action with alarm = Unit stops

Alarm grouping = Permanent stop
Alarm code = F401
Alarm content = Return / Supply for data / Supply air sensor malfunction (at chilled mode)
Action with alarm = Unit stops

Alarm grouping = Permanent stop
Alarm code = F603
Alarm content = Suction modulating valve (SMV) does not fully close contrary to the designation
or initial setting of the controller is wrong
Action with alarm = Unit stops

Alarm grouping = Permanent stop
Alarm code = F701
Alarm content = Abnormal high voltage (over 600V) or low voltage (under 300V)
Action with alarm = Unit stops

Alarm grouping = Permanent stop
Alarm code = F705
Alarm content = S phase became open phase
Action with alarm = Unit stops

Alarm grouping = Permanent stop
Alarm code = F803
Alarm content = Abnormalities, which make it impossible to continue operation (Note2.)
Action with alarm = Unit stops

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Protection device activation
Alarm code = E101
Alarm content = High-pressure switch activated during normal operation.
Action with alarm = Restart after 3-minute

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Protection device activation
Alarm code = E103
Alarm content = CTP or electronic OC activated during normal operation
Action with alarm = Restart after 3-minute

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Protection device activation
Alarm code = E105
Alarm content = Micro processor OC activated during normal operation
Action with alarm = Restart after 3-minute

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Protection device activation
Alarm code = E107
Alarm content = DCHS became abnormal high temperature during operation.
In the event the refrigerant circulation rate is low, the unit will stand by for three minutes to restart then.
Action with alarm = Restart after 3-minute (If this error occurs two times, F803 error will be detected to stop the unit)

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Protection device activation
Alarm code = E109
Alarm content = Low pressure drops to–90kPa or lower for 2 seconds or longer successively during normal operaton
Action with alarm = Restart after 3-minute

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Control error
Alarm code = E201
Alarm content = Pump down is not completed within 90 seconds
Action with alarm = Only alarm display

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Control error
Alarm code = E203
Alarm content = Overcool protection activates in the chilled.(Control temperature ≦ SP–3°C or for 3 minutes)
Action with alarm = Restart after 3-minutes

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Control error
Alarm code = E205
Alarm content = Evaporator for motor failure (Note 2)
Action with alarm = Only alarm display

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Control error
Alarm code = E207
Alarm content = Defrosting is not completed within 90 minutes
Action with alarm = Only alarm display

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Printed-circuit board failure
Alarm code = E303
Alarm content = Humidity setting required (SRAM failure)
Action with alarm = Only alarm display

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Printed-circuit board failure
Alarm code = E305
Alarm content = Defrost timer setting required (SRAM failure)
Action with alarm = Only alarm display

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Printed-circuit board failure
Alarm code = E307
Alarm content = Calendar setting required (SRAM failure)
Action with alarm = Only alarm display

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Printed-circuit board failure
Alarm code = E311
Alarm content = Trip-start setting required (SRAM failure)
Action with alarm = Only alarm display

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Printed-circuit board failure
Alarm code = E315
Alarm content = PT/CT board failure
Action with alarm = Restart after 3-minutes

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Sensor alarm
Alarm code = E401
Alarm content = Supply air temperature sensor (SS) malfunction
Action with alarm = Back-up operation

Alarm grouping =  Display alone or restartable alarm
Alarm grouping = Sensor alarm
Alarm code = E402
Alarm content = Data recorder supply air temperature sensor (DSS) malfunction
Action with alarm = Back-up operation

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Sensor alarm
Alarm code = E403
Alarm content = Return air temperature sensor (RS) malfunction
Action with alarm = Back-up operation

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Sensor alarm
Alarm code = E404
Alarm content = Data recorder return air temperature sensor (DRS) malfunction
Action with alarm = Back-up operation

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Sensor alarm
Alarm code = E405
Alarm content = Discharge air temperature sensor (DCHS) malfunction
Action with alarm = Only alarm display

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Sensor alarm
Alarm code = E406
Alarm content = Suction gas temperature sensor (SGS) malfunction
Action with alarm = Back-up operation

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Sensor alarm
Alarm code = E407
Alarm content = Evaporator inlet temperature sensor (EIS) malfunction
Action with alarm = Back-up operation

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Sensor alarm
Alarm code = E409
Alarm content = Evaporator outlet sensor (EOS) malfunction
Action with alarm = Back-up operation

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Sensor alarm
Alarm code = E411
Alarm content = Ambient sensor (AMBS) malfunction
Action with alarm = Only alarm display

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Sensor alarm
Alarm code = E413
Alarm content = Low pressure transducer (LPT) malfunction
Action with alarm = Back-up operation

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Sensor alarm
Alarm code = E415
Alarm content = High pressure transducer (HPT) malfunction
Action with alarm = Back-up operation

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Sensor alarm
Alarm code = E417
Alarm content = Voltage sensor (PT1) malfunction
Action with alarm = Only alarm display

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Sensor alarm
Alarm code = E421
Alarm content = Current sensor (CT1) malfunction
Action with alarm = Only alarm display

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Sensor alarm
Alarm code = E423
Alarm content = Current sensor (CT2) malfunction
Action with alarm = Restart after 3-minutes

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Sensor alarm
Alarm code = E425
Alarm content = Pulp temperature sensor (USDA1) malfunction
Action with alarm = Only alarm display

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Sensor alarm
Alarm code = E427
Alarm content = Pulp temperature sensor (USDA2) malfunction
Action with alarm =  Only alarm display

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Sensor alarm
Alarm code = E429
Alarm content = Pulp temperature sensor (USDA3) malfunction
Action with alarm = Only alarm display

Alarm code = E431
Alarm content = Humidity sensor (HuS) malfunction
Action with alarm = Only alarm display
Alarm grouping = Display alone or restartable alarm
Alarm grouping = Sensor alarm
Alarm code = E433
Alarm content = Cargo temperature sensor (CTS) or box temperature sensor (CBS) malfunction
Action with alarm = Only alarm display

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Electronic functional part alarm
Alarm code = E603
Alarm content = Suction modulating valve (SMV) malfunction or driver malfunction
Action with alarm = Back-up operation

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Electronic functional part alarm
Alarm code = E607
Alarm content = MDS (sheet key) malfunction
Action with alarm = Only alarm display

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Power supply alarm
Alarm code = E707
Alarm content = Momentary power failure
Action with alarm = Restart after 3-minutes

Alarm grouping = Display alone or restartable alarm
Alarm grouping = Ohter alarm
Alarm code = E801
Alarm content = Backup battery replacement date exceeded
Action with alarm = Only alarm display

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Daikin Ururu Sarara Error Code

Inverter Pair E-Series

Heat Pump
Indoor Units
FTXR28EV1B
FTXR42EV1B
FTXR50EV1B

Outdoor Units
RXR28EV1B
RXR42EV1B
RXR50EV1B


Code = Basic Failure Diagnosis
Unit = Basic Failure Diagnosis
Description = Air conditioner does not run.

Code = Basic Failure Diagnosis
Unit = Basic Failure Diagnosis
Description = Air conditioner runs but does not get cooling (heating)

Code = Basic Failure Diagnosis
Unit = Basic Failure Diagnosis
Description = When operation starts, safety breaker works.

Code = Basic Failure Diagnosis
Unit = Basic Failure Diagnosis
Description = Air conditioner makes big noise and vibration.

Code = Basic Failure Diagnosis
Unit = Basic Failure Diagnosis
Description = Air does not humidified enough

Code = A1
Unit = Indoor
Description = Indoor unit PCB fault

Code = A5
Unit = Indoor
Description = Peak-cut control or freeze-up protection

Code = A6
Unit = Indoor
Description = Fan motor system fault

Code = AH
Unit = Indoor
Description = Streamer unit fault

Code = C4
Unit = Indoor
Description = Indoor heat exchanger thermistor fault

Code = C7
Unit = Indoor
Description = Front panel open / close fault

Code = C9
Unit = Indoor
Description = Room temperature thermistor fault

Code = CC
Unit = Indoor
Description = Humidity sensor fault

Code = E1
Unit = Outdoor
Description = Outdoor unit PCB fault

Code = E5
Unit = Outdoor
Description = OL activation (compressor overload)

Code = E6
Unit = Outdoor
Description = Compressor lock

Code = E7
Unit = Outdoor
Description = DC fan lock

Code = E8
Unit = Outdoor
Description = Input overcurrent detection

Code = EA
Unit = Outdoor
Description = Four way valve fault

Code = F3
Unit = Outdoor
Description = Discharge pipe temperature control

Code = F6
Unit = Outdoor
Description = High pressure control in cooling

Code = H0
Unit = Outdoor
Description = Compressor sensor system fault

Code = H1
Unit = Humidifying unit
Description = Damper fault

Code = H6
Unit = Outdoor
Description = Position sensor fault

Code = H8
Unit = Outdoor
Description = DC voltage / DC current sensor fault

Code = H9
Unit = Outdoor
Description = Outdoor air thermistor fault

Code = J3
Unit = Outdoor
Description = Discharge pipe thermistor fault

Code = J6
Unit = Outdoor
Description = Outdoor heat exchanger thermistor fault

Code = L3
Unit = Outdoor
Description = Abnormal temperature in electrical box

Code = L4
Unit = Outdoor
Description = Temperature rise in radiation fin

Code = L5
Unit = Outdoor
Description = Output overcurrent

Code = P4
Unit = Outdoor
Description = Radiation fin thermistor fault

Code = P9
Unit = Humidifying unit
Description = Fan motor system fault / fan lock

Code = PA
Unit = Humidifying unit
Description = Heater wire fault

Code = PH
Unit = Humidifying unit
Description = Humidification fan outlet thermistor fault / abnormal heater temperature

Code = U0
Unit = System
Description = Insufficient gas

Code = U2
Unit = System
Description = Over voltage protection (OVP) / low voltage protection (LVP)

Code = U4
Unit = System
Description = Signal transmission error (indoor unit - outdoor unit)

Code = U4
Unit = Outdoor
Description = Outdoor unit PCB fault or communication circuit fault

Code = U7
Unit = System
Description = Signal transmission error on outdoor unit PCB

Code = UA
Unit = System
Description = Incompatible power supply between indoor unit and outdoor unit

Code = UA
Unit = Indoor
Description = Incomplete setting for hose length

Code = -
Unit = System
Description = Lights-out of microcomputer status lamp

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