Quick answer
Check simple drain restrictions first; repeated E23 usually needs service.
Safety note
Disconnect power before opening panels or touching wiring. If water is leaking near electricity, stop and call a qualified technician.
Related problem hub
See more drain problem appliance codes across other brands and appliance types.
What E23 means
On many Bosch dishwasher models, E23 belongs to the drain problem category. The appliance is taking too long to remove water or cannot confirm normal draining.
Codes and exact steps can vary by model number, production year, and regional design. Use this guide as first-pass orientation and confirm model-specific details with the manufacturer source listed below.
Before you start
Write down the full model number and the exact display text before changing parts or clearing the control. Similar-looking codes can map to different model families, and a reset can erase useful timing clues.
If the appliance shows active leaking, a burning smell, smoke, gas odor, repeated breaker trips, or water near power, stop this checklist and use qualified service.
Common causes
- Drain hose is kinked or pushed too far into the standpipe
- Filter, sump, or pump area is blocked
- Household drain is slow
- Drain pump has failed
Recommended check order
- Confirm the model number and exact code spelling.
- Stop the cycle and disconnect power before opening any service cover.
- Check the drain hose for kinks, crushing, or a frozen section.
- Clean the accessible filter only if the model manual shows one.
- Prepare towels and a shallow pan before opening a drain filter.
- Run one controlled reset only when the appliance is dry, stable, and safe.
- Stop if E23 returns immediately or appears on an empty test.
Safe checks before service
- Stop the cycle and disconnect power before opening any service cover.
- Check the drain hose for kinks, crushing, or a frozen section.
- Clean the accessible filter only if the model manual shows one.
- Prepare towels and a shallow pan before opening a drain filter.
What not to do
- Do not bypass locks, sensors, fuses, or leak protection to force a cycle.
- Do not open powered panels or touch wiring for a code check.
- Do not assume one display code proves one specific part has failed.
Stop and call a technician when
- Water will not drain after the hose and filter are clear.
- The pump hums but does not move water.
- Water leaks from the base or service panel.
FAQ
Is E23 always a broken part?
No. On a Bosch dishwasher, E23 usually identifies a drain problem category. A blocked hose, dirty filter, uneven load, or unsafe operating condition can trigger a code before a part failure is confirmed.
Can I reset E23?
A single power reset can be reasonable after visible checks are complete and the appliance is safe. If E23 returns immediately, treat it as an active fault rather than a nuisance message.
Why does model number matter?
Brands reuse similar code text across model families. The model number controls the exact manual steps, access points, and service boundary.
Aliases and related display text
People may search for this same condition using different capitalization or alternate display forms.
- E23