Hitachi YUTAKI S80 Series - Troubleshooting Procedure by Alarm Code; Alarm Display

13. Troubleshooting
TCGB0075 rev.0 - 11/2012
152
13.1 Troubleshooting procedure by alarm code
13.1.1 Alarm display
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Alarm code indication on LCD controller
Alarm indication
Alarm code
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Alarm code indication on 7 segment
Indoor unit
Position of the 7 segment at the indoor PCB1&3:
RWH-(4-6)FS(V)NFE
• The 7 segment at the indoor PCB1 will show the alarms from the outdoor
unit, the hydraulic circuit and the 1st cycle.
• The 7 segment at the indoor PCB3 will show the alarms from the 2nd cycle.
Oudoor unit
Position of the 7 segment at the outdoor PCB:
RAS-(4-6)H(V)RNME-AF
• The 7 segment at the outdoor PCB will show the alarms from the
outdoor unit.
SEG1
DSW6
DSW1
LED2
SW1
PSW2
PSW1
PSW3
DSW4
DSW3
RSW
LED1
DSW2
LED3
DSW5
JP1
JP6
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