Hitachi RCUE40AG2 Service Manual page 140

Troubleshooting

Alarm code

[Alarm Stop Reason]
The actual cycle is over the admissible value
calculated by inverter order frequency.
*Alarm stop: 5 retries during 30 minutes.(only
corresponding fan is stopped, automatic
restart in 10 seconds))
Re-operate
Is motor operating?
No
Are there any foreign
material within the fan?
No
Check if connector on the fan module, relay connector and PIN are OFF.
*Connector is different from models. Confi rm it with operation circuit drawing
Is connector abnormal?
No
Replace fan motor
Re-operate
Is motor operating?
No (No indication)
pag. 138
SMGB0003 rev.0 - 01/2007

Inverter Position Detection Abnormality
1m: m=Fan No.
Yes
Yes
Yes
Re-operate
Is motor operating?
Yes
[PCB Monitoring Position]
FANM (Fan Module)
[Retry Code]
No code indication (indicated within the check
mode)
Possible alarm cause is to detect excess current by
Use as it is since the product has no failure
Take off the foreign material
Repair it
Yes
No
Replace Printed Circuit Board
for Control or fan module
head wind.
Repaired
Repaired