E: 18. Wireless Lan Adapter Non-Energized - Fujitsu ASYG07-14KGTF Service Manual

4-4. E: 18. Wireless LAN adapter non-energized

Indoor unit
Indicator
Mobile app
Indoor unit controller PCB
Detective actuator
Wireless LAN adapter PCB
Forecast of cause
Check point 1. Check the connection.
• Check any loose or removed connection of between the wireless LAN adapter PCB and con-
troller PCB.
-> If there is abnormal condition, correct it.
• Check the connection condition on the controller PCB.
-> If there is loose connector, open cable or mis-wiring, correct it.
Check point 2. Check the wireless LAN adapter PCB and the controller PCB
Check voltage at CN12 (terminal 1—2) of main PCB.
(Power supply to remote controller)
• If it is DC 0 V, controller PCB is failure.
-> Replace controller PCB.
• If it is DC 12 V, wireless LAN adapter PCB is failure.
-> Replace the wireless LAN adapter and cancel the registration of air condi-
tioner on the Mobile app.
After replacing the adapter, perform the pairing on the Mobile app.
For the method of the Mobile app, refer to
page 03-87.
4-4. E: 18. Wireless LAN adapter non-energized
Operation indicator
Timer indicator
Economy indicator
Wireless LAN
indicator
Error code
When the voltage (DC 12 V) does not output from the
controller PCB.
↓
"Mobile app setting method"
↓
End
- (03-86) -
1 time flash
8 time flash
Continuous flash
No indication
E: 18
No indication
Indoor unit controller PCB failure
Wireless LAN adapter PCB failure
Wiring connection failure
on
4. Troubleshooting with error code (For wireless LAN adapter)