8 Troubleshooting
275
SMGB0064 rev.0 - 08/2011
8
Alarm Code
55
Inverter Failure 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 PCB1
- This alarm is displayed when the following phenomenon occurs 3 times in 30 minutes including 3: (Retry operation
is performed up to the occurrence of 2 times.)
- Actual frequency from PCB2 is less than 10 Hz (after inverter frequency output form PCB1).
Condition of Activation:
This alarm is indicated when PCB2 is not performed normally.
RAS-(8/10)HRNSE
N O T E
*1): Regarding replacing or checking method for the inverter components, refer to the item Procedure of checking
other main parts for ES Series, see on page 312
*2): Before the checking of transistor module, refer to the item regarding electrical discharge.
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