Bosch Washer E23 / F23: AquaStop Leak Protection

Documentation checkedBy ErrHiveUpdated October 28, 2026

THE SHORT ANSWER

AquaStop leak protection has activated.

Bosch treats E23/F23 as activation of AquaStop protection. Shut the water supply and stop using the washer until the problem is fixed.

First safe check

From a dry, safe position, close the accessible washer water tap.

Applies to

Bosch US washer support; the exact model manual takes precedence. No exact-model applicability is asserted.

Before you start

Stay clear of wet plugs and sockets. Do not move or tip a leaking washer.

Go to safe checks

WHAT YOU MAY NOTICE

Symptoms to record

The display shows E23 / F23.

WORK THROUGH THE BASICS

Safe troubleshooting checks

0 of 2 checked

Use the checkboxes to keep track as you read. Stop at any warning or step that does not match your appliance.

Stop incoming water
Close the water tap without forcing a damaged or inaccessible valve.
What to note
Further inflow is limited.
Request service
Report the display and any visible water to Bosch.
What to note
The leak-protection event can be investigated.

THE DETAILS MATTER

Scope & troubleshooting notes

How to use this guidance

Keep track of where water was visible before wiping it away, provided you can do so safely. Tilting the washer or repeatedly clearing the display does not establish that the reason for protection has been repaired.

YOUR NEXT DECISION

When to stop and get help

Do not resume washing until the fault has been fixed.

Record what you see

Keep the full model number, exact displayed code, and your observations together for the next conversation.

Use the right support

Contact the manufacturer or a qualified appliance technician when the guide calls for service.

Bosch support

THE EVIDENCE

Sources & verification

Our explanations are editorial summaries of the documentation below. They do not replace the instructions for your exact appliance.

Washing machine error E23 / F23
Bosch Home Appliances · Manufacturer support · Checked Oct 28, 2026
Meaning and owner guidance — Bosch US washer support; the exact model manual takes precedence. No exact-model applicability is asserted.

ErrHive is an independent information resource, not an authorized representative of Bosch. Follow your appliance’s manual. Hazardous repairs belong with qualified professionals. Read our safety policy.