Hitachi RWM-(H)FSN3E, Service Manual

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12 Troubleshooting
SMGB0070 rev. 1 - 08/2011
402
Cause of inverter stoppage
Code Cause
Cause of stoppage for
corresponding unit
Remark
Indication during
retry
Alarm code
1
Automatic stoppage of transistor module
(IPM, ISPM, dipIPM Error)
(Over current, decrease voltage, short circuit protection)
17 P7 53
2 Instantaneous over current 17 P7 48
3
Abnormal inverter fin thermistor
17 P7 54
4 Electronic thermal activation 17 P7 48
5 Inverter voltage decrease 18 P8 06
6 Over voltage 18 P8 06
7 Abnormal inverter transmission 18 - -
8
Abnormal
current det
ection
17 P7 51
9 Instantaneous power failure detection 18 - -
11 Reset of micro-computer for inverter 18 - -
12
Earth fault detection from compressor (Only starting)
17 P7 53
13 Abnormal power source phase (Open phase) 18 - -
1b Inverter PCB abnormality 18 P8 55
17 Abnormal transmission 18 P8 55
18 Abnormal current detection - - 02
19
Abnormal protective device
- - 38
20
~
b3
Other factors 18 - -