Daikin REYQ-XA, Service Manual

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SiUS371901E Troubleshooting by Error Code
Service Diagnosis 242
F3 - 01 Discharge pipe high temperature error (Master)
Refer to the F3 flowchart of each manual and make a diagnosis
of the relevant unit based on the Error code shown to the left.
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 - 01 Wet alarm
Refer to the F4 flowchart of each manual and make a diagnosis
of the relevant unit based on the Error code shown to the left.
F4 - 02 Wet alarm for compressor M1C (Master)
F4 - 04 Wet alarm for compressor M1C (Slave 1)
F4 - 06 Wet alarm for compressor M1C (Slave 2)
F4 - 08 Wet error for compressor M1C (Master)
F4 - 10 Wet error for compressor M1C (Slave 1)
F4 - 12 Wet error for compressor M1C (Slave 2)
F4 - 14 Indoor unit failure alarm
F6 - 02 Refrigerant overcharged Refrigerant overcharge was detected during test operation.
F9 - 01
Electronic expansion valve error (high/low
pressure gas pipe)
Refer to the F9 flowchart of each manual and make a diagnosis
of the relevant electronic expansion valve of the relevant unit
based on the Error code shown to the left.
F9 - 02 Electronic expansion valve error (suction pipe)
F9 - 05 Electronic expansion valve error (subcooling)
H3 - 02
Harness abnormality (Main & inverter PCB) -
Master unit
Refer to the H3 flowchart of each manual and make a diagnosis
of the relevant unit based on the Error code shown to the left.
H3 - 04
Harness abnormality (Main & inverter PCB) -
Slave unit 1
H3 - 06
Harness abnormality (Main & inverter PCB) -
Slave unit 2
H7 - 01 Motor position signal abnormality (Master): M1F
Refer to the H7 flowchart of each manual and make a diagnosis
of the relevant unit based on the Error code shown to the left.
H7 - 02 Motor position signal abnormality (Master): M2F
H7 - 05 Motor position signal abnormality (Slave 1): M1F
H7 - 06 Motor position signal abnormality (Slave 1): M2F
H7 - 21 Defective fan PCB (Master): M1F
H7 - 22 Defective fan PCB (Master): M2F
H7 - 23 Defective fan PCB (Slave 1): M1F
H7 - 24 Defective fan PCB (Slave 1): M2F
H7 - 25 Defective fan PCB (Slave 2): M1F
H7 - 26 Defective fan PCB (Slave 2): M2F
H9 - 01 Defective outdoor air thermistor (Master)
Refer to the H9 flowchart of each manual and make a diagnosis
of the relevant unit based on the Error code shown to the left.
H9 - 02 Defective outdoor air thermistor (Slave 1)
H9 - 03 Defective outdoor air thermistor (Slave 2)
Error code
Troubleshooting
Error description Diagnosis