Fujitsu AOUH18LMAS1, Service Manual

Page: 63 / 215

2-7. E: 29.X. Connected unit number error (Indoor unit)
Indicator
Indoor unit
Operation indicator 2 time flash
Timer indicator 9 time flash
Economy indicator Continuous flash
Error code E: 29
outdoor unit Refer to "Error code table (Outdoor unit)" on page 03-4
Detective actuator →ired remote controller (2-wire)
→hen the number of the connected indoor unit exceeds
the limitation.
Indoor unit main PCB
Forecast of cause
→rong wiring of indoor unit or remote controller
Number of indoor unit or remote controller in remote
controller group
Indoor unit main PCB failure
Check point 1. →ire installation
• →rong number of connected indoor unit
-> If there is an abnormal condition, correct it by refer to the installation manual or the “DESIGN
& TECHNICAL MANUAL”.
Check point 2. 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: 29.↓. Connected unit number error (Indoor unit)
- (03-21) -
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