Internet
Indoor unit
Controller PCB
Parts：
Wireless LAN
adapter
Wireless
LAN
router
CLOUD Mobile App
(Mobile device)
Outdoor unit
Forecast of Cause:
1. Connection cable failure of Wireless LAN router, 2. Wireless LAN router failure
3. Connection between A/C and Wireless LAN adapter failure
4. Connection between Wireless LAN adapter and Wireless LAN router failure
5. Wireless LAN adapter PCB failure, 6. Controller PCB failure
Communication Error
(”Trou. 29, 30” and “Trou. 31” are simultaneous
Error)
Trouble shooting 32
INDOOR UNIT Error Method:
Detective Actuators: Detective details:
Indicate of Display:
Wireless LAN adapter PCB
Indoor unit Controller PCB
When the "External Communication Error" and "Network Communication Error"
has occurred at the same time.
NG
NG
Indoor Unit :
Operation lamp: 1 time Flash
Timer lamp : 8 time Flash
W-LAN lamp : On or Flashing slowly (On/Off=7sec/2sec)
ERROR CODE : [ 18 ]
Wireless LAN router
Check Point 2 : Check the connection status and 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”.
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".
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.
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OK
OK
OK
Ex. ) Wi-Fi products
PC
GAME
02-41
NGor
or
Check Point 3-1 : Check the connection
Check any loose or removed connection of between the Wireless LAN adapter PCB and Controller PCB
>If there is abnormal condition, correct it.
Check the connection condition on the Controller PCB
>If there is loose connector, open cable or miswiring, correct it.
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