Troubleshooting by Remote Controller
SiUS30-1301
144
Service Diagnosis
L8 - 03
INV. compressor instantaneous overcurrent error
(Master)
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.
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)
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.
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)
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.
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)
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.
P1 - 02
Unbalanced power supply voltage (Slave 1)
P1 - 03
Unbalanced power supply voltage (Slave 2)
PJ - 04
Faulty combination of INV. PCB (Master)
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.
PJ - 05
Faulty combination of INV. PCB (Slave 1)
PJ - 06
Faulty combination of INV. PCB (Slave 2)
U0 - 03
Gas shortage alarm
Refer to the “U0” flow chart.
U1 - 01
Reverse phase/open phase for power supply
(Master)
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.
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)
Error code
Troubleshooting
Description of error
Description of diagnosis