E23 — / F23 — AquaStop Activated (Leak)
Bosch's official US washer codes use an E:XX / F-code / icon format; a bare 'E23' is not in the official US list. The 'AquaStop activated (leak)' explanation below is not confirmed on Bosch's US consumer page — verify against your model's manual.
- Keep using it?
- Limited use only
- DIY difficulty
- Moderate
How to fix it
- Turn off the water and unplug the washer — do not use it until repaired.
- Tilt the machine to drain the base; find and fix the leak source.
Why it happens
Typical signs: Washer stops · Water in the base · E23 shown
- Water leak in the machine/base A hose or seal leak tripped AquaStop.
- AquaStop sensor tripped The base float/sensor detected water.
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.
- Bosch Washer AquaStop Hose Common replacementAmazon →
More Bosch washer codes
Frequently asked questions
What does the E23 code mean on a Bosch washer?
Bosch's official US washer codes use an E:XX / F-code / icon format; a bare 'E23' is not in the official US list. The 'AquaStop activated (leak)' explanation below is not confirmed on Bosch's US consumer page — verify against your model's manual.
What causes the E23 code on a Bosch washer?
Water leak in the machine/base: A hose or seal leak tripped AquaStop. AquaStop sensor tripped: The base float/sensor detected water.
Is it safe to keep using a Bosch washer with a E23 error?
Limited use only. This is rated a serious-severity fault.
How do I fix E23 on a Bosch washer?
Turn off the water and unplug the washer — do not use it until repaired. Tilt the machine to drain the base; find and fix the leak source.
Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.