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Manual Connection Timeout

Indoor unit indicator turns off — Manual connection mode canceled due to timeout

Fujitsu · Air Conditioners

What does Manual Connection Timeout mean?

If the air conditioner registration via the mobile app is not completed within several minutes while in Manual connection mode, the indoor unit indicator will turn off. This means the manual connection process has timed out and is no longer active.

Common Causes

  • Air conditioner registration was not completed via the mobile app within the allotted time.
  • Possible issues with the mobile app or network connection prevented timely registration.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure your smartphone or tablet is connected to the correct Wi-Fi network (access point).

  2. 2

    Check the FGLair mobile app for any error messages or incomplete steps.

  3. 3

    Repeat the remote controller setting procedure to re-enter Manual connection mode and attempt registration again.

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