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02

Undervoltage Error

Mitsubishi Electric · PUZ-HA30/36NHA4 Outdoor Unit

¿Qué significa 02 ?

The power circuit board has detected an undervoltage condition in the input power supply. This can lead to improper operation, instability, or failure of the system's components, particularly the compressor, due to insufficient power.

Causas comunes

  • Input voltage to the unit is below the normal operating range.
  • Voltage sag or brownout from the electrical grid.
  • Faulty power supply.
  • Loose electrical connections.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Measure the input power supply voltage at the main terminals to verify the actual voltage level.

  2. 2

    Check the external power supply for stability and correct voltage output.

  3. 3

    Inspect the power circuit board for any visible damage or component failure.

Ver todos los códigos en este manual (45)
Datos técnicos verificados. Última actualización: March 2026

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Fuente: Mitsubishi Electric PUZ-HA30/36NHA4 Outdoor Unit