Specifications

Troubleshooting by Remote Controller SiBE341027
188 Service Diagnosis
Concept of inverter-related error codes
CHECK 10
460V: 32.3A
(230V: 59.1A)
460V: 19.0A
(230V: 33.5A)
460V: 16.1A
(230V: 27.6A)
P4
260 consecutive sec.
5 consecutive sec.
Instantaneous overcurrent of inverter compressor
(When inverter output current exceeds 460V units:
32.3A 230V units: 59.1A even instantaneously)
For 460V units

An overcurrent of 19.0A or more continues
for a period of 5 consecutive seconds

An overcurrent of 16.1A or more continues
for a period of 260 consecutive seconds.
For 230V units

A current of 33.5A or more continues for a
period of consecutive 5 sec.

A current of 27.6A or more continues for a
period of consecutive 260 sec.
Defective startup of inverter compressor
(Compressor stops running
immediately after it starts up.)
Power supply
(3 phase, 460VAC)
(3 phase, 230VAC)
U2 P1
Imbalanced power supply voltage
When imbalance in
voltages among three
phases comes to 2%
or more
Power supply voltage error
When the power supply
voltage falls out of the
range of 460VAC±10%
230VAC±10%
Error codes related to
compressor current
Main (Service monitor) PCB
LC
Weak-current
part
Heavy-current
part (Power
transmission etc.)
L1 L4
PJ
PCB mismatching
When incorrect inverter
PCB is connected
Radiation fin temperature rise
When the radiation fin
temperature reached
199.4˚F or more
Defective radiation fin thermistor
When the radiation fin thermistor resistor detects
an open circuit (-22˚F or less) or a short
circuit (248˚F or more)
Defective radiation inverter
When the radiation heavy current part of
inverter gets defective (gives no output)
Instantaneous
overcurrent
L5
Compressor overcurrent
(Electronic thermal 2)
L8
Compressor overcurrent
(Electronic thermal 1)
L8
Max. control
Time
E5
L9
L8L5
Inverter compressor lock
(Compressor does not run at all.)
When transmissions between the
main PCB and the inverter PCB
are not normal
Transmission error
Inverter
PCB
Overcurrent of inverter compressor
Current
Compressor