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F63

F63 — Functional protection problem

Bosch · Washing Machines

What does F63 mean?

A functional protection error has occurred, possibly due to a defective processor or software error. This is a critical error that locks the door and stops operation.

Common Causes

  • Defective processor
  • Software error

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Press ON/OFF to reset the machine.

  2. 2

    The door remains locked; this indicates a serious internal fault.

  3. 3

    Contact customer support for diagnosis and repair.

Browse all codes in this manual (47)
Verified technical data. Last updated: April 2026

Related Faults

E02E02 — Motor problemE67E67 — Incorrect module encodingF01F01 — Door not closed or laundry obstructing door
Source: Bosch Washing Machines
Open Manual (Page 6)Search more codes in this manual