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300

Temperature Sensor Connection Failure

Fronius · Perfect Charging

¿Qué significa 300 ?

The battery charger was unable to establish a connection with the temperature sensor. This prevents the charger from monitoring crucial temperature data, which is essential for safety and optimal charging performance.

Causas comunes

  • A disconnected or damaged wiring between the charger and the temperature sensor.
  • A faulty temperature sensor that is not responding or providing a valid signal.
  • Incorrect wiring or improper termination of the sensor connection at the charger's input terminals.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Verify the physical connection and wiring integrity of the temperature sensor, ensuring it is securely connected to the designated terminals.

  2. 2

    Measure the resistance of the temperature sensor across its terminals and compare it to the expected resistance values for its ambient temperature.

  3. 3

    Check the sensor's terminal connections on the charger for proper seating and absence of corrosion.

Ver todos los códigos en este manual (61)
Datos técnicos verificados. Última actualización: March 2026

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