Fujitsu ASY50-KM Service Manual

2-7. E: 26. Address setting error in wired remote controller
(Indoor unit)
Indicator Indoor unit
Operation indicator 2 time flash
Timer indicator 6 time flash
Economy indicator Continuous flash
Error code E: 26
Detective actuator
Wired remote controller (2-wire) • When the address number set by auto setting and
manual setting are mixed in one remote controller
group
• When the duplicated address number exists in one
remote controller group
Indoor unit controller PCB
Forecast of cause
Wrong wiring of remote controller group
Wrong remote controller address setting
Indoor unit main PCB failure
Remote controller failure
Check point 1. Wire 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. Wrong 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
2-7. E: 26. Address setting error in wired remote controller (Indoor unit) - (03-33) - 2. Troubleshooting with error code
TROUBLESHOOTING TROUBLESHOOTING

Fujitsu ASY50-KM Specifications

General

Brand	Fujitsu
Model	ASY50-KM
Category	Air Conditioner
Language	English