CodeRegistry
Brands
  1. Home
  2. Fujitsu
  3. Air Conditioners
  4. Red 5 Flashes, Green 6 Flashes
About·Privacy·Terms

CodeRegistry — Your global library for technical solutions.

For your safety: always follow the equipment manufacturer’s official manuals. CodeRegistry is an independent help site and is not affiliated with the brands listed here.

Red 5 Flashes, Green 6 Flashes

Red 5 Flashes, Green 6 Flashes (Single System) — Outdoor Fan Failure

Fujitsu · Air Conditioners

What does Red 5 Flashes, Green 6 Flashes mean?

The red LED flashes five times and the green LED flashes six times on the indoor unit. This indicates a problem with the outdoor unit's fan motor.

Common Causes

  • Blocked or obstructed outdoor fan blades.
  • Faulty outdoor fan motor or capacitor.
  • Wiring issue to the outdoor fan motor.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the power to the air conditioner at the circuit breaker.

  2. 2

    Carefully check the outdoor unit's fan for any obstructions (leaves, debris) and clear them if present.

  3. 3

    Ensure the fan blades spin freely by hand (when power is OFF).

  4. 4

    Restore power and test the unit; if the error persists, contact a technician to inspect the motor.

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

Related Faults

AFM Filter Error (AUY, ABY & AWY)Red Blinks, Green 12 Pulses, Yellow Off (AUY, ABY & AWY) — Active Filter Module ErrorAir Sensor Closed (AUY, ABY & AWY)Red 2 Pulses, Green Blinks, Yellow Blinks (AUY, ABY & AWY) — Air Sensor Closed Circuit (Short)Air Sensor Open (AUY, ABY & AWY)Red 2 Pulses, Green Blinks, Yellow Off (AUY, ABY & AWY) — Air Sensor Open Circuit
Source: Fujitsu Air Conditioners
Open Manual (Page 1)Search more codes in this manual