Fujitsu ASYG07KGTF Service Manual page 63

2-5. E: 23. Combination error (Outdoor unit)
Indicator Indoor unit
Detective actuator Indoor unit
Forecast of cause
Check point 1. Check the type of indoor unit
• Check the type of the connected indoor unit.
-> If there is an abnormal condition, correct it by refer to the installation manual or the "DESIGN
& TECHNICAL MANAL".
Check point 2. Replace the main PCB
If check point 1 do not improve the symptom, replace the main PCB of the outdoor unit.
2-5. E: 23. Combination error (Outdoor unit)
Operation indicator
Timer indicator
Economy indicator
Error code
↓
↓
End
Continuous flash
The outdoor unit receives the serial signal of applied
refrigerant information from indoor unit.
Incorrect indoor unit is selected.
- (03-27) -
2 time flash
3 time flash
E: 23
2. Troubleshooting with error code