All Three Lights Flashing and Air Conditioner Not Starting

If your Fujitsu General High Wall Split System (with a wireless remote controller) shows all three lights flashing three times and then turning off, and the air conditioner won’t start, don’t worry — this is usually not a fault.

Why This Happens

In most cases, this occurs because the Weekly Timer has been accidentally turned on.
When this happens, the air conditioner won’t operate manually until the timer is cleared.

You can confirm this by checking your remote control display — if you see the word “WEEKLY”, the timer is active.

How to Fix It

  1. Open the Remote Cover
    Slide down or lift the cover on your remote control to reveal extra buttons.

  2. Cancel the Weekly Timer

    • Press the WEEKLY button once to turn the timer off.

    • Alternatively, press the RESET button to clear all settings.

  3. After doing this, the word “WEEKLY” should disappear from the screen.

  4. Restart the Air Conditioner
    Press the ON/OFF button on the remote to start the system again.
    The lights should stop flashing, and the unit should operate normally.

If the Problem Continues

If the three lights keep flashing or your air conditioner still won’t start:

  • Double-check that “WEEKLY” is no longer showing on the remote display.

  • Turn the system off at the power supply for 30 seconds, then turn it back on.

  • If the issue persists, please contact Fujitsu General Customer Care or your authorised service agent for assistance.