Daikin RXQ12AHR Service Manual page 182

Troubleshooting with Remote Controller
Error code
E9 - 03 Electronic expansion valve coil Y2E error (Master)
E9 - 06 Electronic expansion valve coil Y2E error (Slave 1)
E9 - 09 Electronic expansion valve coil Y2E error (Slave 2)
E9 - 26 Electronic expansion valve coil Y4E error (Master)
E9 - 27 Electronic expansion valve coil Y4E error (Slave 1)
E9 - 28 Electronic expansion valve coil Y4E error (Slave 2)
E9 - 48 Electronic expansion valve overcurrent (Master)
E9 - 49 Electronic expansion valve overcurrent (Slave 1)
E9 - 50 Electronic expansion valve overcurrent (Slave 2)
Electronic expansion valve fuse thermal cutting
E9 - 51
(Master)
Electronic expansion valve fuse thermal cutting
E9 - 52
(Slave 1)
Electronic expansion valve fuse thermal cutting
E9 - 53
(Slave 2)
E9 - 54 Defective circuit (Master)
E9 - 55 Defective circuit (Slave 1)
E9 - 56 Defective circuit (Slave 2)
F3 - 01 Discharge pipe high temperature error (Master)
F3 - 03 Discharge pipe high temperature error (Slave 1)
F3 - 05 Discharge pipe high temperature error (Slave 2)
F3 - 20 Compressor overheat error (Master)
F3 - 21 Compressor overheat error (Slave 1)
F3 - 22 Compressor overheat error (Slave 2)
F4 - 02 Wet alarm for compressor M1C (Master)
F4 - 03 Wet alarm for compressor M2C (Master)
F4 - 04 Wet alarm for compressor M1C (Slave 1)
F4 - 05 Wet alarm for compressor M2C (Slave 1)
F4 - 06 Wet alarm for compressor M1C (Slave 2)
F4 - 07 Wet alarm for compressor M2C (Slave 2)
F4 - 08 Wet error for compressor M1C (Master)
F4 - 09 Wet error for compressor M2C (Master)
F4 - 10 Wet error for compressor M1C (Slave 1)
F4 - 11 Wet error for compressor M2C (Slave 1)
F4 - 12 Wet error for compressor M1C (Slave 2)
F4 - 13 Wet error for compressor M2C (Slave 2)
F4 - 14 Indoor unit failure alarm
F6 - 02 Excess refrigerant charge error
Excess refrigerant charge warning
F6 - 03
Connection error between main PCB and inverter PCB
H3 - 02
1 (Master)
Connection error between main PCB and inverter PCB
H3 - 03
2 (Master)
Connection error between main PCB and inverter PCB
H3 - 04
1 (Slave 1)
Connection error between main PCB and inverter PCB
H3 - 05
2 (Slave 1)
Connection error between main PCB and inverter PCB
H3 - 06
1 (Slave 2)
Connection error between main PCB and inverter PCB
H3 - 07
2 (Slave 2)
H7 - 21 Defective fan PCB for M1F (A7P) (Master)
H7 - 22 Defective fan PCB for M2F (A4P) (Master)
H7 - 23 Defective fan PCB for M1F (A7P) (Slave 1)
H7 - 24 Defective fan PCB for M2F (A4P) (Slave 1)
H7 - 25 Defective fan PCB for M1F (A7P) (Slave 2)
H7 - 26 Defective fan PCB for M2F (A4P) (Slave 2)
176
Description of error
Troubleshooting
Refer to the E9 flowchart and make a diagnosis
of the relevant electronic expansion valve based
on the Error code shown to the left.
Refer to the F3 flowchart and make a diagnosis based
on the Error code shown to the left.
Refer to the F4 flowchart and make a diagnosis based
on the Error code shown to the left.
Excess refrigerant charge was detected during test run.
Excess refrigerant charge was detected
during operation other than test run.
Refer to the H3 flowchart and make a diagnosis based
on the Error code shown to the left.
Refer to the H7 flowchart and make a diagnosis based
on the Error code shown to the left.
SiAF341904E
Diagnosis
Part 6 Service Diagnosis