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A1

A1 - CCU did not reset (Fisher & Paykel Wall ovens)

Miele · Professional Troubleshooting Guide

What does A1 mean?

The Central Control Unit (CCU) in the oven failed to reset correctly, which can prevent normal operation and display an error.

Common Causes

  • Temporary power glitch or fluctuation
  • Internal electronics fault within the control unit
  • Software issue or corrupted settings

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the oven's power supply at the circuit breaker for at least 1 minute.

  2. 2

    Restore power to the oven.

  3. 3

    Observe if the error clears and attempt to use the oven as normal.

  4. 4

    If the error persists, there may be an internal issue requiring professional service.

Browse all codes in this manual (45)
Verified technical data. Last updated: April 2026

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Source: Miele Professional Troubleshooting Guide
Open Manual (Page 71)Search more codes in this manual