Fujitsu AOUH18LMAS1, Service Manual

Page: 61 / 215

2-5. E: 23.X. Combination error (Outdoor unit)
Indicator
Indoor unit
Operation indicator 2 time flash
Timer indicator 3 time flash
Economy indicator Continuous flash
Error code E: 23
Outdoor unit Refer to "Error code table (Outdoor unit)" on page 03-4
Detective actuator Indoor unit
The outdoor unit receives the serial signal of applied
refrigerant information from indoor unit.
Forecast of cause Incorrect indoor unit is selected.
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 main PCB
If check point 1 do not improve the symptom, replace main PCB of the outdoor unit.
End
2-5. E: 23.↓. Combination error (Outdoor unit)
- (03-19) -
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