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Red 2 Flashes, Green 6 Flashes

Red 2 Flashes, Green 6 Flashes (Single System) — Float Switch Operated (Drain Problem)

Fujitsu · Air Conditioners

What does Red 2 Flashes, Green 6 Flashes mean?

The red LED flashes two times and the green LED flashes six times on the indoor unit. This indicates that the float switch has been activated, typically due to a high water level in the drain pan.

Common Causes

  • Clogged or blocked condensate drain line.
  • Full condensate drain pan.
  • Faulty float switch.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the air conditioner to prevent further water overflow.

  2. 2

    Check the condensate drain pan for excess water and carefully empty it if full.

  3. 3

    Inspect the condensate drain line for blockages and clear any debris if safe to do so.

  4. 4

    Ensure the unit is level to allow for proper drainage.

  5. 5

    If the problem continues after clearing the drain, contact a service professional to inspect the float switch or pump.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

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Source: Fujitsu Air Conditioners
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