Daikin RXYQ72 Serivce Manual page 127

Troubleshooting by Remote Controller
Malfunction Operation
code
Indoor A0
Unit
A1
A3
A6
A7
A9
AF
AH
AJ
C4
C5
C9
CJ
Outdoor E1
Unit
E3
E4
E5
E6
E7
E9
F3
F6
H3
H4
H7
H9
J2
J3
J5
J6
J7
J8
J9
JA
JC
L0
L4
L5
L6
L8
L9
116
Inspection Unit No.
lamp display
9 9
9 9
9 9
9 9
8 7
9 9
8 7
8 7
9 9
9 9
9 9
9 9
8 8
9 9
9 9
9 9
9 9
9 9
9 9
9 9
9 9
9 9
8 7
9 9
9 9
9 9
9 9
9 9
9 9
9 9
9 9
9 9
9 9
9 9
9 9
9 9
9 9
9 9
9 9
9 9
9 9
Malfunction contents
Error of external protection device
9
PC board defect, E
9
Malfunction of drain level control system (S1L)
9
Fan motor (M1F) lock, overload
9
Malfunction of swing flap motor (MA)
9
Malfunction of moving part of electronic expansion
9
valve (20E)
Drain level above limit
9
Malfunction of air filter maintenance
9
Malfunction of capacity setting
9
Malfunction of thermistor (R2T) for heat exchange
9
(loose connection, disconnection, short circuit,
failure)
Malfunction of thermistor (R3T) for gas pipes (loose
9
connection, disconnection, short circuit, failure)
Malfunction of thermistor (R1T) for air inlet (loose
9
connection, disconnection, short circuit, failure)
Malfunction of thermostat sensor in remote controller
8
PC board defect
9
Actuation of high pressure switch
9
Actuation of low pressure sensor
9
Compressor motor lock (INV compressor)
9
Standard compressor lock or over current
9
Malfunction of outdoor unit fan motor
9
Malfunction of moving part of electronic expansion
9
valve (Y1E~3E)
Abnormal discharge pipe temperature
9
Refrigerant overcharged
9
Malfunction of High pressure switch
9
Actuation of Low pressure switch
9
Abnormal outdoor fan motor signal
9
Malfunction of thermistor (R1T) for outdoor air (loose
9
connection, disconnection, short circuit, failure)
Current sensor malfunction
9
Malfunction of discharge pipe thermistor (R31~33T)
9
(loose connection, disconnection, short circuit, failure)
Malfunction of thermistor (R2T) for suction pipe (loose
9
connection, disconnection, short circuit, failure)
Malfunction of thermistor (R4T) for heat exchanger
9
(loose connection, disconnection, short circuit,
failure)
Malfunction of receiver outlet liquid pipe thermistor (R6T)
9
Malfunction of thermistor (R7T) for oil equalizing pipe.
9
(loose connection, disconnection, short circuit,
failure)
Malfunction of sub-cooling heat exchanger gas pipe
9
thermistor (R5T)
Malfunction of discharge pipe pressure sensor
9
Malfunction of suction pipe pressure sensor
9
Inverter system error
9
Malfunction of inverter radiating fin temperature rise
9
Inverter compressor motor grounding, short circuit
9
Compressor motor coil grounding on short circuit
9
Inverter current abnormal
9
Inverter start up error
9
: ON
8 7
2
PROM defect
SiUS39-601
: OFF : Blink
9
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Troubleshooting