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Bosch Washer E23 Error Code

E23 (also shown as F23) means the AquaStop leak-protection hose has been triggered, indicating the system has detected a possible water leak and shut off the water supply as a precaution.

What E23 Means

E23 (also shown as F23) means the AquaStop leak-protection hose has been triggered, indicating the system has detected a possible water leak and shut off the water supply as a precaution.

Common Causes of E23

  • An actual water leak from a hose, seal, or valve
  • A damaged AquaStop hose triggering a false alarm
  • A failed water inlet valve

🔧 One Safe Check You Can Try

Turn off the water supply valve behind the washer immediately, and check the floor and surrounding area for visible water — do not attempt to reset and rerun the cycle.

⚠ Why You Shouldn't Go Further Than That

  • This code exists specifically to stop an active leak — bypassing it before the cause is confirmed risks a flooded laundry room or the floor below it.
  • The AquaStop float mechanism is designed to be difficult to reset without the right tool, and forcing it can damage the hose permanently.
  • A leak at the water inlet valve can be under line pressure; disconnecting it without shutting off the supply first can spray water into the machine's electronics.
  • Continuing to run cycles while investigating this yourself risks the kind of water damage most homeowners insurance treats as a maintenance issue, not a covered loss.
  • Valve and hose access at the rear of the machine typically voids the remaining manufacturer warranty.

Still Seeing E23?

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Other Washer Error Codes

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FAQ

E23 FAQ

No — treat this as an active leak signal until a technician confirms otherwise, since running it again risks water damage.

The float mechanism inside a triggered AquaStop hose typically requires professional reset or replacement, since the safety trip is designed to be difficult to bypass accidentally.

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