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Easy Connection Mode Active

Indoor unit indicator blinks fast (1s/1s) — Air conditioner in Easy connection mode, searching for Wi-Fi

Fujitsu · Air Conditioners

What does Easy Connection Mode Active mean?

The indoor unit's indicator blinks quickly (1 second on, 1 second off) when the air conditioner has entered Easy connection mode. This means it is actively searching for a connectable WLAN access point.

Common Causes

  • The air conditioner has been set to Easy connection mode for WLAN adapter pairing by the user via the remote controller.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure your smartphone or tablet is linked to the same Wi-Fi access point you intend to connect the air conditioner to.

  2. 2

    Wait for the indicator blinking to slow down (2 seconds on, 0.5 seconds off) as it finds an access point, then proceed with the app registration.

  3. 3

    If the indicator turns off after several minutes, repeat the remote controller setting procedure to re-enter Easy connection mode.

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
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