Fujitsu ASUG12LZBS Service Manual page 95

Check point 4. Replace wireless LAN adapter.
If check point 3 do not improve the symptom, replace the wireless LAN adapter and cancel the reg-
istration of air conditioner on the mobile app.
After replacing the adapter, perform the pairing on the mobile app.
For the method of the mobile app, refer to
Check point 2-2. Check the transmission state
Check the wireless transmission state pf the wireless LAN router (LED status).
-> If the wireless transmission from the wireless LAN router has not been outgoing, inquire to the
wireless LAN router maker.
4-3. Network communication error between wireless LAN router and WLAN adapter
"Mobile app setting method"
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End
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End
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4. Troubleshooting with error code (For wireless LAN adapter)
on page 03-64.