Daikin VRV RXYQ72-384XAYCA Service Manual page 225

SiUS342004EB
Error Operation
code lamp
J3
l
J5
l
J6
l
J7
l
J8
l
J9
l
JA
l
Outdoor
JC
l
Unit
L1
l
L2
l
L4
l
L5
l
L8
l
L9
l
LC
l
P1
l
P4 (1)
l
PJ
l
U0 (1)
k
U1
l
U2
l
U3
l
U4
l
U5
l
U7
l
U8
l
U9
l
System
UA
l
UC (1)
k
UE
l
UF
l
UH
l
Note(s)
1: The system can keep operating, however, be sure to check and repair.
2: The system may continue operation depending on the conditions.
3: Regarding the error codes and descriptions of the low-temperature hydrobox (HXY-TA), refer
to the service manual SiUS392016EA.
Part 6 Service Diagnosis
Discharge pipe thermistor (R21T) abnormality
Compressor body thermistor (R14T) abnormality
Compressor suction thermistor (R12T) abnormality
Suction pipe thermistor (R10T) abnormality
Heat exchanger deicer thermistor (R11T) abnormality
Heat exchanger gas pipe thermistor (R8T, R9T) abnormality
Receiver inlet thermistor (R3T) abnormality
Subcooling heat exchanger liquid pipe thermistor (R7T) abnormality
Subcooling injection thermistor (R16T) abnormality
Heat exchanger liquid pipe thermistor (R4T, R5T) abnormality
Subcooling heat exchanger gas pipe thermistor (R6T) abnormality
Receiver gas purge thermistor (R13T) abnormality
High pressure sensor abnormality
Low pressure sensor abnormality
Inverter PCB abnormality
Momentary power failure during test operation
Inverter radiation fin temperature rise abnormality
Compressor instantaneous overcurrent
Compressor overcurrent
Compressor startup abnormality
Transmission error between inverter PCB and outdoor unit main PCB
Power supply voltage imbalance
Inverter radiation fin temperature abnormality
Field setting abnormality after replacing outdoor unit main PCB or combination of PCB
abnormality
Refrigerant shortage
Reverse phase, Open phase
Power supply insufficient or instantaneous abnormality
Check operation not executed
Transmission error between indoor units and outdoor units, open phase in power
supply wiring
Transmission error between remote controller and indoor unit
Transmission error between outdoor units
Transmission error between main and sub remote controllers
Transmission error between indoor units and outdoor units in the same system
Improper combination of indoor unit and outdoor unit, indoor unit and remote
controller
Incorrect gas furnace connecting number
Incorrect electric heater capacity setting
Address duplication of centralized controller
Transmission error between centralized controller and indoor unit
System not set yet
System abnormality, refrigerant system address undefined
Climate Talk communication system combination error (before initial setting for
communication completes)
Climate Talk communication system combination error (after initial setting for
communication completes)
Error contents
Troubleshooting by Error Code
Reference
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