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F01 (Bosch WFP)

F01 (Bosch WFP) — Aquastop system error

Bosch · Washing Machines

What does F01 (Bosch WFP) mean?

The Aquastop system has reported an error, typically meaning it's not responding to low pressure correctly, or a leak is detected. This prevents water from entering the machine.

Common Causes

  • Aquastop sensor malfunction
  • Low water pressure not registered
  • Leak detected by Aquastop

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check for any visible leaks around the machine.

  2. 2

    Ensure the water supply pressure is adequate.

  3. 3

    The Aquastop device itself may need replacement.

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 7)Search more codes in this manual