E: 29.↓. Connected Unit Number Error (Indoor Unit) - Fujitsu ASUH18LMAS Service Manual

2-7. E: 29.X. Connected unit number error (Indoor unit)
Indoor unit
Indicator
outdoor unit
→ired remote controller (2-wire)
Detective actuator
Indoor unit main PCB
Forecast of cause
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.
2-7. E: 29.↓. Connected unit number error (Indoor unit)
Operation indicator
Timer indicator
Economy indicator
Error code
End
Continuous flash
Refer to "Error code table (Outdoor unit)"
→hen the number of the connected indoor unit exceeds
the limitation.
→rong wiring of indoor unit or remote controller
Number of indoor unit or remote controller in remote
controller group
Indoor unit main PCB failure
- (03-21) -
2 time flash
9 time flash
E: 29
on page 03-4
2. Troubleshooting with error code