Fujitsu AOTG30KMTC, Service Manual, Page: 59 / 199

2-8. E: 29. 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: for 34 model
only)” on page 1
Detective actuator
Wired remote controller (2-wire)
When the number of the connected indoor unit exceeds
the limitation.
Indoor unit controller PCB
Forecast of cause
Wrong 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. Wire installation
• Wrong 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
2-8. E: 29. Connected unit number error (Indoor unit)
- (03-21) -
2. Troubleshooting with error code
TROUBLESHOOTING TROUBLESHOOTING