Fujitsu ACUH09LUAS1, Service Manual

Page: 58 / 153

2-6. E: 26. Address setting error in wired remote controller
(Indoor unit)
Indicator
→ired remote
controller
Error code E: 26
Detective actuator
→ired remote controller (2-wire) • →hen the address number set by auto setting and
manual setting are mixed in one remote controller
group
• →hen the duplicated address number exists in one
remote controller group
Indoor unit controller PCB
Forecast of cause
→rong wiring of remote controller group
→rong remote controller address setting
Indoor unit main PCB failure
Remote controller failure
Check point 1. →ire installation
• Check the wire connection in the remote controller group (For installation method, refer to in-
stallation manual)
-> If there is an abnormal condition, correct it by refer to the installation manual or the “DESIGN
& TECHNICAL MANUAL”.
Check point 2. →rong remote controller group setting
• The given address number by auto setting (00) and the manual set number (except 00) are not
existing in one remote controller group.
• The remote controller address setting by UI is not existing same address.
• The duplicate address number is not existing in one remote controller group.
Check point 3. Check indoor unit main PCB
• Check if main PCB is damaged.
• Change main PCB and check the error after setting remote controller address.
End
2-6. E: 26. Address setting error in wired remote controller (Indoor unit)
- (03-10) -
2. Troubleshooting with error code
TR
O
U
B
LESH
O
O
TI
N
G
TR
O
U
B
LESH
O
O
TI
N
G