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2 red flashes

2 red flashes — Communication error between indoor and outdoor units

Mitsubishi Electric · Air Conditioning

¿Qué significa 2 red flashes ?

This blinking pattern typically signifies a communication error between the indoor and outdoor units. It could be due to wiring issues or a fault in one of the units.

Causas comunes

  • Loose or damaged wiring between indoor and outdoor units.
  • A fault in the indoor unit's communication components.
  • A fault in the outdoor unit's communication components.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Check all wiring connections between the indoor and outdoor units for looseness or damage.

  2. 2

    Ensure there are no obstructions affecting the communication signal.

  3. 3

    If wiring appears intact, consult a service technician to diagnose potential faults in either unit.

Ver todos los códigos en este manual (170)
Datos técnicos verificados. Última actualización: April 2026

Fallas relacionadas

0.5-second ON / 0.5-second OFF blinkUpper lamp blinks 0.5-second ON/OFF - Miswiring or serial signal error00Normal operation - No error codes1 beep during error display mode1 beep during error display mode - Unit has an error (different code)
Fuente: Mitsubishi Electric Air Conditioning
Open Manual (Page 41)Buscar más códigos en este manual