Daikin REYQ-AATJA, Service Manual

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SiUS372201EA Troubleshooting by Error Code
Part 6 Service Diagnosis 284
L2 - 01 Momentary power failure during test operation (Master) Refer to the L2 flowchart and make a diagnosis of the
relevant unit based on the Error code shown to the left.
L2 - 02 Momentary power failure during test operation (Sub)
L2 - 04 Switch ON the power supply (Master)
L2 - 05 Switch ON the power supply (Sub)
L4 - 01 Radiation fin temperature rise: Inverter PCB M1C (Master) Refer to the L4 flowchart and make a diagnosis of the
relevant unit based on the Error code shown to the left.
L4 - 02 Radiation fin temperature rise: Inverter PCB M1C (Sub)
L4 - 06 Radiation fin temperature rise: Fan M1F (Master)
L4 - 07 Radiation fin temperature rise: Fan M2F (Master)
L4 - 09 Radiation fin temperature rise: Inverter PCB M2C (Master)
L4 - 10 Radiation fin temperature rise: Inverter PCB M2C (Sub)
L4 - 12
Inverter radiation fin temperature rise abnormality M1C
(Master)
L4 - 13
Inverter radiation fin temperature rise abnormality M1C
(Sub)
L4 - 15
Inverter radiation fin temperature rise abnormality M2C
(Master)
L4 - 16
Inverter radiation fin temperature rise abnormality M2C
(Sub)
L4 - 18 Radiation fin temperature rise: Fan M1F (Sub)
L4 - 19 Radiation fin temperature rise: Fan M2F (Sub)
L5 - 03 Compressor M1C momentary overcurrent (Master) Refer to the L5 flowchart and make a diagnosis of the
relevant unit based on the Error code shown to the left.
L5 - 05 Compressor M1C momentary overcurrent (Sub)
L5 - 14 Compressor M2C momentary overcurrent (Master)
L5 - 15 Compressor M2C momentary overcurrent (Sub)
L8 - 03 Compressor M1C overcurrent (Master) Refer to the L8 flowchart and make a diagnosis of the
relevant unit based on the Error code shown to the left.
L8 - 06 Compressor M1C overcurrent (Sub)
L8 - 11 Compressor M2C overcurrent (Master)
L8 - 12 Compressor M2C overcurrent (Sub)
L9 - 01 Compressor M1C startup error (Master) Refer to the L9 flowchart and make a diagnosis of the
relevant unit based on the Error code shown to the left.
L9 - 05 Compressor M1C startup error (Sub)
L9 - 10 Compressor M2C startup error (Master)
L9 - 11 Compressor M2C startup error (Sub)
L9 - 13 Inverter output open phase M1C (Master)
L9 - 14 Inverter output open phase M1C (Sub)
L9 - 16 Inverter output open phase M2C (Master)
L9 - 17 Inverter output open phase M2C (Sub)
LC - 14
Transmission error (Between outdoor units, inverter PCB)
(Master): M1C
Refer to the LC flowchart and make a diagnosis of the
relevant unit based on the Error code shown to the left.
LC - 15
Transmission error (Between outdoor units, inverter PCB)
(Sub): M1C
LC - 19
Transmission error (Between outdoor units, fan PCB)
(Master): M1F
LC - 20
Transmission error (Between outdoor units, fan PCB)
(Sub): M1F
LC - 24
Transmission error (Between outdoor units, fan PCB)
(Master): M2F
LC - 25
Transmission error (Between outdoor units, fan PCB)
(Sub): M2F
LC - 30
Transmission error (Between outdoor units, inverter PCB)
(Master): M2C
LC - 31
Transmission error (Between outdoor units, inverter PCB)
(Sub): M2C
LC - 33
Transmission error (Between outdoor units, sub PCB)
(Master)
LC - 34
Transmission error (Between outdoor units, sub PCB)
(Sub)
Error code
Troubleshooting
Error Description Diagnosis