Daikin VRV-WIII RWEYQ72PTJU Service Manual page 152

Troubleshooting by Remote Controller
Error code
L8 - 03 INV. compressor instantaneous overcurrent error
(Master)
L8 - 06 INV. compressor instantaneous overcurrent error
(Slave 1)
L8 - 07 INV. compressor instantaneous overcurrent error
(Slave 2)
L9 - 01 INV. compressor startup failure (Master)
L9 - 05 INV. compressor startup failure (Slave 1)
L9 - 06 INV. compressor startup failure (Slave 2)
LC - 01 Transmission error [between INV. PCB and main
PCB] (Master)
LC - 06 Transmission error [between INV. PCB and main
PCB] (Slave 1)
LC - 08 Transmission error [between INV. PCB and main
PCB] (Slave 2)
P1 - 01 Unbalanced power supply voltage (Master)
P1 - 02 Unbalanced power supply voltage (Slave 1)
P1 - 03 Unbalanced power supply voltage (Slave 2)
PJ - 04 Faulty combination of INV. PCB (Master)
PJ - 05 Faulty combination of INV. PCB (Slave 1)
PJ - 06 Faulty combination of INV. PCB (Slave 2)
U0 - 03 Gas shortage alarm
U1 - 01 Reverse phase/open phase for power supply
(Master)
U1 - 04 Reverse phase for power supply [with power
supply turned ON] (Master)
U1 - 05 Reverse phase/open phase for power supply
(Slave 1)
U1 - 06 Reverse phase for power supply [with power
supply turned ON] (Slave 1)
U1 - 07 Reverse phase/open phase for power supply
(Slave 2)
U1 - 08 Reverse phase for power supply [with power
supply turned ON] (Slave 2)
144
Description of error
Troubleshooting
Description of diagnosis
Refer to the "L8" flow chart of each manual and make a
diagnosis of the relevant compressor of the relevant unit based
on the Error code shown to the left.
Refer to the "L9" flow chart of each manual and make a
diagnosis of the relevant compressor of the relevant unit based
on the Error code shown to the left.
Refer to the "LC1" flow chart of each manual and make a
diagnosis of the relevant unit based on the Error code shown
to the left.
Refer to the "P1" flow chart of each manual and make a
diagnosis of the relevant unit based on the Error code shown
to the left.
Refer to the "PJ" flow chart of each manual and make a
diagnosis of the relevant unit based on the Error code shown
to the left.
Refer to the "U0" flow chart.
Refer to the "U1" flow chart of each manual and make a
diagnosis of the relevant unit based on the Error code shown
to the left.
SiUS30-1301
Service Diagnosis