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EC

Outdoor Board LED1 (green) blinks twice and LED2 (red) blinks twice alternately - Startup time over

MHI · Air Conditioning

¿Qué significa EC ?

During startup, the outdoor unit's LED1 (green) blinks twice and LED2 (red) blinks twice alternately, indicating that the unit exceeded its allowed startup time.

Causas comunes

  • Extended startup time due to an underlying issue.
  • Possible problem with compressor or outdoor unit components preventing quick startup.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Turn off the main power supply to the unit, wait for at least 30 seconds, and then turn it back on.

  2. 2

    Ensure there are no obstructions around the outdoor unit that might impede its operation.

  3. 3

    If the issue recurs, a technician should inspect the outdoor unit's compressor and startup sequence.

Ver todos los códigos en este manual (124)
Datos técnicos verificados. Última actualización: April 2026

Fallas relacionadas

00Outdoor Board LED only green lights up after startup - No outdoor unit of address 0 / Remote controller transmission wire open1OPERATION INDICATOR lamp blinks 1 time (Pattern A) - Indoor/outdoor unit communication error (Transmitting error - Outdoor unit)14OPERATION INDICATOR lamp blinks 14 times (Pattern A) - Other errors
Fuente: MHI Air Conditioning
Open Manual (Page 59)Buscar más códigos en este manual