Hitachi RAS-(4-6)HVRNS2E - Abnormality of Inverter Module for es Series

8 Troubleshooting
274
SMGB0064 rev.0 - 08/2011
Alarm code
55
Abnormality of Inverter Module for ES Series
• The RUN LED ickers and “ALARM” is displayed on the remote control switch.
• The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit
number and the alarm code are displayed on the display of the outdoor unit PCB.
- This alarm is displayed when below condition is activated 3 times including 3 in 30 minutes. Retry operation is per-
formed up to the occurrence of 2 times.
Condition of Activation:
When the PCB1 does not receive the frequency signal from Inverter Module, this alarm is indicated.
RAS-(4-6)HVRNS2E