Hitachi RCUE40AG2 Service Manual page 142

Troubleshooting

Alarm code

[Alarm Stop Reason]
Inverter DC voltage is under or over the setting
voltage level.
*Alarm stop: 3 retries during 30
minutes.(compressor stop, automatic restart in
3minutes)
Re-operate
Yes
Is power supply voltage
under 200V± 10%?
Yes
Is voltage over 170V
during running?
Yes
Is voltage down by
operating some operating
devices?
No
Is LED201 of fan computer
lightning ?
Is fan computer connected
correctly?
Yes
Does fuse have electricity?
Replace fuse
pag. 140

Voltage Shortage or Excess Voltage in Inverter
1m: m=Fan No.
No
How is the running
status of fan at re-
operation?
SMGB0003 rev.0 - 01/2007
[PCB Monitoring Position]
FANM (Fan Module)
[Retry Code]
No. 1 Cycle: F1-P8
No. 2 Cycle: F2-P8
No. 3 Cycle: F3-P8
No. 4 Cycle: F4-P8
No. 5 Cycle: F5-P8
Fan is operated
normally and fan
frequency is increased.
Fan is operated but
stopped immediately.
Fan is operated with
low frequency and
stopped by increasing
the frequency.
Check and investigate
the wiring system and
wiring volume.
Fan computer has
failure.
Replace it.
Connect it correctly.