Error Codes And Corresponding Measures - Daikin VRV IV-S RXTQ-TAVJU Series Service Manual

Test Operation
1.4

Error Codes and Corresponding Measures

Please check the remote controller connected to the indoor unit for verification.
Error code
Primary Sub
code code
E3 01
02
13
18
E4 01
E9 01
04
F3 01
F6 02
H9 01
J3 16
17
J5 01
J6 01
J7 01
J9 01
JA 06
07
JC 06
07
P1 01
U2 01
02
U3 03
77
Description
High pressure switch activated (S1PH)
· Too much refrigerant charged
· Stop valve closed
Stop valve closed (liquid).
· Too much refrigerant charged
· Stop valve closed
Defective low pressure:
· Stop valve closed
· Refrigerant undercharged
· Defective indoor unit
Defective electronic expansion valve
(Subcooling) (RXTQ60TAVJU: Y3E)
Defective electronic expansion valve (Main)
(Y1E)
Discharge pipe temperature too high:
· Stop valve closed
· Refrigerant undercharged
· Too much refrigerant charged
· Stop valve closed
Defective outdoor air thermistor (R1T)
Defective discharge pipe thermistor (R2T):
Tripping
Defective discharge pipe thermistor (R2T):
Short circuit
Defective suction pipe thermistor
(R3T and R5T): Tripping
Defective outdoor heat exchanger deicer
thermistor (R4T)
Defective heat exchanger liquid pipe thermistor
(R7T)
Defective subcooling heat exchanger gas pipe
thermistor (R6T: RXTQ60TAVJU only)
Defective high pressure sensor (S1NPH):
Tripping
Defective high pressure sensor (S1NPH):
Short circuit
Defective low pressure sensor (S1NPL):
Tripping
Defective low pressure sensor (S1NPL):
Short circuit
Inverter unbalanced power supply voltage
Inverter insufficient voltage
Inverter power supply phase missing
System test operation not yet executed (Test
operation cannot be executed.)
Solution
Check the stop valve or (field) piping abnormality
or the airflow on the air cooling heat exchanger.
· Check the amount of refrigerant and recharge
the unit.
· Open the stop valve.
Open the liquid stop valve.
· Check the amount of refrigerant and recharge
the unit.
· Open the stop valve.
· Open the stop valve.
· Check the amount of refrigerant and recharge
the unit.
· Check the user interface display.
· Check the transmission wiring between the
indoor and outdoor units.
Check the connection of the PCB or the actuator.
Check the connection of the PCB or the actuator.
· Open the stop valve.
· Check the amount of refrigerant and recharge
the unit.
· Open the stop valve.
· Check the amount of refrigerant and recharge
the unit.
Check the connection of the PCB or the actuator.
Check the connection of the PCB or the actuator.
Check the connection of the PCB or the actuator.
Check the connection of the PCB or the actuator.
Check the connection of the PCB or the actuator.
Check the connection of the PCB or the actuator.
Check the connection of the PCB or the actuator.
Check the connection of the PCB or the actuator.
Check the connection of the PCB or the actuator.
Check the connection of the PCB or the actuator.
Check the connection of the PCB or the actuator.
Check if the power supply meets the
specifications.
Check if the power supply meets the
specifications.
Check if the power supply meets the
specifications.
Execute system test operation.
SiUS331604E
Field Setting