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Fujitsu ACUH09LUAS1 User Manual

Fujitsu ACUH09LUAS1
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2-3. E: 12. Wired remote controller communication error (Indoor
unit)
Indicator
→ired remote
controller
Error code E: 12
Detective actuator
Indoor unit Main PCB →hen the indoor unit cannot receive the signal from
wired remote controller more than following time during
normal operation.
3-wire type: 1 minute
2-wire type: 2.5 minutes
→ired remote control
Forecast of cause
Terminal connection abnormal
→ired remote control failure
Main PCB failure
Check point 1. Check the connection of terminal
After turning off the power, check & correct the followings.
Check the connection of terminal between wired remote controller and indoor unit, and check if
there is a disconnection of the cable.
Check Point 1-2 : Check →ired remote controller
and main PCB
If it is DC 12 V, remote controller is failure.
(Main PCB is normal)
Replace remote control
If it is DC 0 V, main PCB is failure. (Check
remote controller once again)
Replace main PCB
Check voltage at CN14 (terminal 1—3,
terminal 1—2) of main PCB. (Power
supply to the remote controller)
Upon correcting the removed connec-
tor or mis-wiring, reset the power.
End
Check Point 2 : →ire installation wrong remote controller group setting
→rong wire connection in remote controller group (Please refer to the installation manual)
The number of connecting indoor unit and remote controller in one remote controller group
were less than 32 units.
Check Point 2-1 : Check Indoor unit main PCB
Check if main PCB damage
Change main PCB and check the error after setting remote controller address
End
2-3. E: 12. →ired remote controller communication error (Indoor unit) - (03-7) - 2. Troubleshooting with error code
TROUBLESHOOTING
TROUBLESHOOTING

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Fujitsu ACUH09LUAS1 Specifications

General IconGeneral
BrandFujitsu
ModelACUH09LUAS1
CategoryAir Conditioner
LanguageEnglish

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