Fujitsu UTY-TFNXZ1 Setting Manual page 14

Parts/Elements
Operations from
the mobile app
 State of the Wireless LAN indicators
*Lighting pattern:
State of the Lamps
All the lamps are off
LED 2 is off or flash-
ing fast (Repeating
0.5 seconds on / 0.5
seconds off)
LED 1 is flashing
fast (Repeating 0.5
seconds on / 0.5
seconds off)
All the lamps are
flashing fast (Re-
peating 0.5 seconds
on / 0.5 seconds off)
If the problem persists even after you perform these checks or diagnostics, consult
authorized service personnel.
En-14
Situation
I am not able to operate
this product from the
mobile app
Off On
Check that the power to the indoor unit is on.
Check that the power to the wireless router is on.
Check that your smartphone is not in flight mode.
Check that you are not in a place where it is
difficult to make a connection with radio waves.
Flashing
Causes and Solutions
The power to the WLAN adapter is not on.

Check that the power to the air conditioner is on
and that the air conditioner breaker is not tripped.
The LED lamps are turned off by setting from the
mobile app.

Refer to the operating manual of the mobile app.
The power to the wireless router is not on.

Check that the power to the wireless router is on.
There is a possibility that the WLAN adapter is not
properly connected to the wireless router.

Disconnect the power supply to the air condition-
er (via breaker or plug), and then re-connect.
It is not possible to communicate with the air condi-
tioner.

There may be a wiring error in the air conditioner.
Please contact authorized service personnel.
There is a problem with the WLAN adapter.

Disconnect the power supply to the air condi-
tioner (via breaker or plug), and then re-connect.
Setup the wireless LAN again according to the
procedures in "4. PREPARATIONS FOR USE".
Solutions