Fujitsu AS G18KMTA Series Service Instruction page 44

Trouble shooting 34
INDOOR UNIT Error Method:
Network Communication Error
(Communication Error of between
Wireless LAN Router to Wireless CLOUD)
Detective Actuators:
Wireless LAN router
Forecast of Cause:
1. Connection cable failure of Wireless LAN router.
2. Connection between CLOUD and Wireless LAN router failure
3. Wireless LAN router failure
Check Point 1 : Check the connection cable
Check the connection cable on the Wireless LAN router.
>If there is loose connector, open cable or miswiring, correct it.
OK
Check Point 2-1 : Check the connection status
Check the connection status to the Internet and Wireless LAN router.
>If the Wireless LAN Router is not connected to the Internet,
Please check the transmission between
"Wi-Fi products of other than Air conditioner" and "Wireless LAN router".
OK
Check Point 3 : Turn on power again of Air conditioner
If Check Point 1,2 do not improve the symptom, turn on power again of the Air conditioner, please wait 60 seconds.
OK
Check Point 4 : Replace Wireless LAN adapter
If Check Point 3 do not improve the symptom, replace Wireless LAN adapter and
Please cancel the air conditioner of the registration on the Mobile App.
After the replace adapter, Please perform the pairing on the app.
>Air conditioning de-registration method, refer to page "02 - 46"
>Pairing method, refer to page "02 - 47--02 - 54"
Indicate of Display:
Indoor Unit :
Operation lamp: – Any state
Timer lamp
W-LAN lamp
ERROR CODE : [ No indication ]
Detective details:
When the Not connection between Wireless LAN adapter and
Wireless LAN router.
Indoor unit
Outdoor unit
Check Point 2-2 : Check the transmission state
Check the Wireless transmission state of Wireless LAN router. (LED status)
>If the wireless transmission from the Wireless LAN router has not been outgoing,
Please the inquiry to "Wireless LAN router maker".
02-42
: – Any state
: ON
NG
Controller PCB
Parts : Wireless
Wireless LAN LAN router
adapter
Ex. ) Wi-Fi products
PC
GAME
NO
Internet
CLOUD Mobile App
(Mobile device)
Wireless
LAN router