E23 Serious Moderate DIY

Bosch Washer E23 / F23 — AquaStop Activated (Leak)

Bosch Washer · Error code E23

What E23 Means

E23 (F23) means the AquaStop leak-protection system has activated — water was detected in the base.

Symptoms

  • Washer stops
  • Water in the base
  • E23 shown

Common Causes

1
Water leak in the machine/base

A hose or seal leak tripped AquaStop.

2
AquaStop sensor tripped

The base float/sensor detected water.

How to Fix It

  1. Turn off the water and unplug the washer — do not use it until repaired.
  2. Tilt the machine to drain the base; find and fix the leak source.

Parts You May Need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

Common replacement Bosch Washer AquaStop Hose View on Amazon→

More Bosch Washer Codes

E01 E01 — Door Lock Fault E02 E02 — Motor Fault E03 E03 — Drain Pump Fault E04 E04 — Water Inlet Fault E05 E05 — Heating Element Fault E06 E06 — Door Lock Circuit Fault

All Bosch codes → All washer codes →

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.