E: 18. Communication Error - Fujitsu ASUG12LZAS Service Manual

4-4. E: 18. Communication error

Indoor unit
Indicator
Wireless LAN
adapter
Wireless LAN router
Wireless LAN adapter PCB
Detective actuator
Indoor unit controller PCB
Forecast of cause
Check point 1. Check the connection cable
Check the connection cable on the wireless LAN router.
-> If there is loose connector, open cable or mis-wiring, correct it.
Check point 2. Check the connection status.and transmission state
• Check the connection status to the internet and wireless LAN router.
-> If the wireless LAN router is not connected to the internet, check the transmission between
wireless LAN products (ex. PC or game console, etc.) other than air conditioner and wireless
LAN router.
If no, go to "Check point
• Check the wireless transmission state of wireless LAN router (LED status).
-> If the wireless transmission from the wireless LAN router has not been outgoing, inquire to
wireless LAN router maker.
If the display pattern is changed as follows, go to
– LED 1 (green): flashing fast
– LED 2 (orange): on
If no, go to "Check point
4-4. E: 18. Communication error
Operation indicator
Timer indicator
Economy indicator
Error code
LED1 (green)
LED2 (orange)
↓
4".
3-1".
↓
- (03-60) -
1 time flash
8 time flash
Continuous flash
Flashing fast
Flashing fast
When the external communication error between indoor
unit and WLAN adapter and network communication
error between wireless LAN router and WLAN adapter
has occurred simultaneously.
NG
Controller
PCB
Connection cable failure of wireless LAN router
Wireless LAN router failure
Connection between indoor unit and wireless LAN
adapter failure
Connection between wireless LAN adapter and wireless
LAN router failure
Wireless LAN adapter PCB failure
Controller PCB failure
"Check point 3-2".
4. Troubleshooting with error code (For wireless LAN adapter)
E: 18
NG NG