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Overvoltage Error

Mitsubishi Electric · PUZ-HA30/36NHA4 Outdoor Unit

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The power circuit board has detected an overvoltage condition in the input power supply. This condition indicates that the incoming voltage exceeds safe operating limits, posing a risk of damage to sensitive electronic components if not corrected.

Häufige Ursachen

  • Input voltage to the unit exceeds the normal operating range.
  • Power surge from the electrical grid.
  • Faulty voltage regulation within the unit.
  • Incorrect power supply connection.

Reparaturschritte & Checkliste

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

  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.

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Verifizierte technische Daten. Zuletzt aktualisiert: March 2026

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