Daikin SkyAir RZR-TA Series, Service Manual, Page: 197 / 331

SiUS281811EA Test Operation
Part 5 Field Settings and Test Operation 191
3.4 Error Codes and Corresponding Measures
Please check the remote controller connected to the indoor unit for verification.
Error code
Description Solution
Primary
code
Sub
code
E3
01
High pressure switch activated (S1PH) Check the stop valve or (field) piping
abnormality or the airflow on the air
cooling heat exchanger.
02
• Too much refrigerant charged
• Stop valve closed
• Check the amount of refrigerant and
recharge the unit.
• Open the stop valve.
13 Stop valve closed (liquid). Open the liquid stop valve.
18
• Too much refrigerant charged
• Stop valve closed
• Check the amount of refrigerant and
recharge the unit.
• Open the stop valve.
E4 01
Defective low pressure:
• Stop valve closed
• Refrigerant undercharged
• Defective indoor unit
• 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.
E9
01
Defective electronic expansion valve
(Subcooling) (30/36/42/48 class: Y3E)
Check the connection of the PCB or
the actuator.
04
Defective electronic expansion valve (Main)
(Y1E)
Check the connection of the PCB or
the actuator.
F3 01
Discharge pipe temperature too high:
• Stop valve closed
• Refrigerant undercharged
• Open the stop valve.
• Check the amount of refrigerant and
recharge the unit.
F6 02
• Too much refrigerant charged
• Stop valve closed
• Open the stop valve.
• Check the amount of refrigerant and
recharge the unit.
H9 01
Defective outdoor air thermistor (R1T) Check the connection of the PCB or
the actuator.
J3
16
Defective discharge pipe thermistor (R2T):
Tripping
Check the connection of the PCB or
the actuator.
17
Defective discharge pipe thermistor (R2T):
Short circuit
Check the connection of the PCB or
the actuator.
J5 01
Defective suction pipe thermistor (R3T and
R5T): Tripping
Check the connection of the PCB or
the actuator.
J6 01
Defective outdoor heat exchanger deicer
thermistor (R4T)
Check the connection of the PCB or
the actuator.
J7 01
Defective heat exchanger liquid pipe
thermistor (R7T)
Check the connection of the PCB or
the actuator.
J9 01
Defective subcooling heat exchanger gas pipe
thermistor (R6T: 30/36/42/48 class only)
Check the connection of the PCB or
the actuator.
JA
06
Defective high pressure sensor (S1NPH):
Tripping
Check the connection of the PCB or
the actuator.
07
Defective high pressure sensor (S1NPH):
Short circuit
Check the connection of the PCB or
the actuator.
JC
06
Defective low pressure sensor (S1NPL):
Tripping
Check the connection of the PCB or
the actuator.
07
Defective low pressure sensor (S1NPL): Short
circuit
Check the connection of the PCB or
the actuator.
P1 01
Inverter unbalanced power supply voltage Check if the power supply meets the
specifications.
U2
01
Inverter insufficient voltage Check if the power supply meets the
specifications.
02
Inverter power supply phase missing Check if the power supply meets the
specifications.
U3 03
System test operation not yet executed (Test
operation cannot be executed.)
Execute system test operation.