Fujitsu AS*G09KXCA Series Service Instruction page 36

General Errors (For Android)
Error messages
No connectivity to Wi-
Fi or the cloud. Please
check your network
connection.
An error occurred
while trying to update
again later.
Causes
The mobile device has
no internet access.
The router the
air conditioner is
connected to, has no
internet access.
The air conditioner is
not connected to the
router.
02-04 +4
Solutions
Connect the mobile device to the
internet.
Check if the router connected to
the air conditioner has internet
access. (You can check by
connecting the mobile device
to the router, then opening the
website.) If there is no access,
connect the router to the internet.
Check the LED indicators
on the WLAN adapter. If the
Green or Orange LED lamp is
TROUBLESHOOTING "State of
the Wireless LAN indicators".