Daikin REYQ72-456XATJU, Service Manual

Page: 260 / 441

Troubleshooting by Error Code SiUS371901E
247 Service Diagnosis
L2 - 01
Momentary power failure during test operation
(Master)
Refer to the L2 flowchart of each manual 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
(Slave 1)
L2 - 03
Momentary power failure during test operation
(Slave 2)
L2 - 04 Switch ON the power supply (Master)
L2 - 05 Switch ON the power supply (Slave 1)
L2 - 06 Switch ON the power supply (Slave 2)
L3 - 01
Reactor temperature rise: Inverter PCB
(Master)
Refer to the L3 flowchart of each manual and make a diagnosis
of the relevant unit based on the Error code shown to the left. L3 - 03 Reactor temperature rise: Inverter PCB (Slave 1)
L3 - 05 Reactor temperature rise: Inverter PCB (Slave 2)
L4 - 01
Radiation fin temperature rise: Inverter PCB
(Master)
Refer to the L4 flowchart of each manual 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
(Slave 1)
L4 - 03
Radiation fin temperature rise: Inverter PCB
(Slave 2)
L4 - 06 Radiation fin temperature rise: Fan M1F (Master)
L4 - 07 Radiation fin temperature rise: Fan M2F (Master)
L4 - 12
Inverter radiation fin temperature rise
abnormality (Master)
L4 - 13
Inverter radiation fin temperature rise
abnormality (Slave 1)
L4 - 14
Inverter radiation fin temperature rise
abnormality (Slave 2)
L4 - 18 Radiation fin temperature rise: Fan M1F (Slave 1)
L4 - 19 Radiation fin temperature rise: Fan M2F (Slave 1)
L4 - 20 Radiation fin temperature rise: Fan M1F (Slave 2)
L4 - 21 Radiation fin temperature rise: Fan M2F (Slave 2)
L5 - 03
Compressor M1C momentary overcurrent
(Master)
Refer to the L5 flowchart of each manual and make a diagnosis
of the relevant unit based on the Error code shown to the left.
L5 - 05
Compressor M1C momentary overcurrent
(Slave 1)
L5 - 07
Compressor M1C momentary overcurrent
(Slave 2)
L8 - 03 Compressor M1C overcurrent (Master)
Refer to the L8 flowchart of each manual and make a diagnosis
of the relevant unit based on the Error code shown to the left.
L8 - 06 Compressor M1C overcurrent (Slave 1)
L8 - 07 Compressor M1C overcurrent (Slave 2)
L9 - 01 Compressor M1C startup error (Master)
Refer to the L9 flowchart of each manual and make a diagnosis
of the relevant unit based on the Error code shown to the left.
L9 - 05 Compressor M1C startup error (Slave 1)
L9 - 06 Compressor M1C startup error (Slave 2)
L9 - 13 Inverter output open phase (Master)
L9 - 14 Inverter output open phase (Slave 1)
L9 - 15 Inverter output open phase (Slave 2)
Error code
Troubleshooting
Error description Diagnosis