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F03

F03 — Water not draining

Bosch · Washing Machines

What does F03 mean?

The washing machine is unable to drain water from the drum within the expected time. This usually indicates a blockage in the drain system or a faulty drain pump.

Common Causes

  • Blocked drain filter
  • Blockage in drain hose or pump outlet
  • Faulty drain pump
  • Malfunctioning electronic controller

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Clean the drain filter.

  2. 2

    Ensure there are no blockages in the drain hose or its connection point.

  3. 3

    Check if the drain pump impeller can turn freely.

  4. 4

    Restart the machine after cleaning and checking for blockages.

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 1)Search more codes in this manual