C guide · Editorially reviewed

Bosch dishwasher E24 with a humming pump

Pump noise with retained water makes filter, pump-area and hose restrictions especially relevant.

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What this evidence points to

Separate normal sump water from a tub that remains full after a drain command.

Bosch commonly uses an E-Nr plus revision number. Both can matter when matching support information.

Bosch context that changes the path

Terminology
Bosch E15 generally concerns water protection; E24 concerns the drain path, but exact procedures depend on E-Nr.
Model detail
Capture both the E-Nr and revision from the door-edge rating plate.
Diagnostic order
For E24, separate filter, pump-area and hose restrictions; for E15, locate and stop leakage before resetting anything.
Safety boundary
An active base leak requires power and water isolation.
Official Bosch support →
Recognized code: E24 — The dishwasher detected a drainage-related fault. Official source →
Free and low-risk checks first

Likely next actions

General order until you add inputs
1

Clean the filter and sump area

Remove food debris from the user-accessible filter and sump.

$0–$515–30 minEasyLow
2

Check drain hose, air gap and disposal connection

Inspect the full drain path for restrictions.

$0–$2015–40 minEasyLow
3

Inspect the drain-pump area

Check the accessible pump cover and impeller area for debris.

$0–$2025–50 minModerateMedium
4

Test or replace the dishwasher drain pump

Confirm pump operation after restrictions are ruled out.

$50–$33045–120 minAdvancedMedium
Personalize by symptoms and previous attempts
Moderated first-party evidence

What matched FixEvidence outcomes show

Outcome data is still growing

No moderated outcome currently matches this page closely enough. Reviewed technical guidance remains separate from user outcomes.

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Know when to stop

Is another repair worth it?

Compare appliance-specific life, spending, likely repair cost and observed repair evidence.

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Frequently asked questions

Should I replace a part based only on an error code?

No. A code identifies a detected condition, not necessarily the failed component. Rule out safe, inexpensive causes and confirm the exact model.

Why ask what I already tried?

The best next action changes when earlier checks fail. The engine removes repeated actions and applies prerequisite rules before ranking what remains.

Are success rates verified?

Every rate shows its denominator. Photo, receipt, invoice, technician and follow-up verification remain separate signals; none converts a small sample into high confidence.