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5506

Alarm Z1 Compressor does not start — Compressor start failure

Bosch · Alarm List A/W Split (8754) 2018 01 10

¿Qué significa 5506 ?

This alarm is issued if the compressor has not started within 2 minutes after a start signal was sent. It suggests an issue with the compressor's connection, the inverter, or an internal error.

Causas comunes

  • Intermittent connection in the cabling between the inverter and the compressor.
  • Temporary malfunction in the inverter.
  • Internal error in the inverter.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Check and ensure a proper, secure connection of the cabling between the inverter and the compressor.

  2. 2

    Break power to the heat pump by turning it off and then on again (reset).

  3. 3

    If the alarm persists after a reset, the inverter is likely defective and needs replacement.

Ver todos los códigos en este manual (60)
Datos técnicos verificados. Última actualización: April 2026

Fallas relacionadas

1001 / A21/A22/A23/A24Alarm A21/A22/A23/A24 — No communication between system controller and remote control1010 / A11Alarm A11 — No communication via EMS BUS connection1037Alarm 1037 — Outdoor temperature sensor faulty, heating standby mode active
Fuente: Alarm List A/W Split (8754) 2018 01 10
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