13. Troubleshooting
TCGB0075 rev.0 - 11/2012
155
13
LCD dis-
play
7 segment
display
Origin
Detail of abnormality
Main factors
135
30
2nd cycle Incorrect PCB Setting
Wrong settings are performed in DIP switches
on PCB.
136
40
2nd cycle Incorrect operation
Wrong settings are performed in DIP switch on
PCB or prohibited operation is performed.
151
06
2nd cycle
Excessively low voltage or excessively high
voltage for the inverter
The voltage between terminal “P” and “N” of
ISPM is insufficient.
152
51
2nd cycle Abnormal operation of the current sensor
The compressor frequency is maintained at
15 - 18 Hz after the compressor’s start up, one
of the absolute values of the running current
at each phase U+, U-, V+ and V- is lower than
1.5 A.
153
52
2nd cycle Activation of protection for inverter instanta-
neous over current
The compressor current is higher than the set
value.
154
53
2nd cycle Transistor module protection activation
The transistor module detects an abnormality 3
times in 30 minutes.
155
54
2nd cycle
Increase in the inverter fin temperature
The temperature of the thermistor for inverter
fin exceeds 100 ºC.