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WLAN Setup Blocked

Cannot set up Wireless LAN — Product not unregistered or initialized by previous owner

Fujitsu · Air Conditioners

What does WLAN Setup Blocked mean?

If you are unable to set up wireless LAN control for a product, it might be because the previous owner did not unregister their account or initialize the WLAN adapter. This prevents a new user from pairing the device.

Common Causes

  • The WLAN adapter or air conditioner is still linked to a previous user's account or settings.
  • The product was not properly unregistered or initialized before transfer to a new owner.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Contact the previous owner to request they unregister the air conditioner using their FGLair mobile app.

  2. 2

    Attempt to perform the Initialization (reset) procedure for the WLAN adapter using the remote controller, if possible.

  3. 3

    If the issue persists, contact your authorized service personnel for further assistance.

Browse all codes in this manual (118)
Verified technical data. Last updated: April 2026

Related Faults

11Error 11 — Serial communication error (Indoor unit not sending signal)12Error 12 — Wired Remote Controller Communication Error18Error 18 — External communication error
Source: Fujitsu Air Conditioners
Open Manual (Page 13)Search more codes in this manual