Bosch Dishwasher E24 Error Code: Drainage Checks and Next Steps

Start with the drain route

Bosch’s US E24 page describes E24 as a failure to drain properly because of a blockage. The Australian manual lists a kinked or blocked waste-water hose, a sealed siphon connection and a loose pump cover among the E24 checks.

Begin by identifying the hose route and drain connection shown in your installation instructions. Look at accessible sections for a bend or compression. A hose hidden behind fitted cabinetry may need an installer or technician to inspect it; pulling the dishwasher out without planning for its connections is not a useful first step.

Check a newly installed drain connection

The connection deserves particular attention if the problem began immediately after installation or plumbing work. The cited manual tells owners to check whether the siphon connection remains sealed.

For installations connected to a garbage disposal, Bosch’s US support page also calls for checking that the plug has been removed from the dishwasher drain connection. This instruction concerns that specific arrangement. It is not a reason to alter a connection on an installation that has no disposal unit.

Inspect the pump cover using the correct manual

The cover is beneath the filter. Bosch includes a loose cover in its E24 guidance, so establish that it is fitted correctly before assuming the pump has failed.

Where the manual permits owner access, disconnect power and follow its removal sequence. Bosch’s Singapore cleaning page warns about glass fragments in this area and calls for protective gloves. It describes more than one cover fastening; use the procedure that matches your appliance, rather than forcing a clip or copying another model’s diagram.

Refit the cover and filter exactly as instructed. The Australian E24 table specifically calls for locking the cover correctly.

Distinguish the filter from the pump cover

The filter assembly collects debris and has its own seating and locking arrangement. The pump cover is a separate part beneath it. A filter that has been cleaned and returned to place does not establish that the cover underneath is secure.

Before starting maintenance, locate both parts in the model manual. Note which part you actually inspected so your report remains precise. If the cover cannot be identified, leave it in place and obtain the matching instructions rather than releasing a fastening that merely looks similar.

Read the result of each accessible check

Use what you find to guide the next step:

• A visible hose kink calls for checking the route without straining the connections.
• A problem that began with installation calls for checking the drain connection against the installation instructions.
• A loose cover calls for correct model-specific refitting before operation.
• A clear route with a correctly fitted cover and continuing E24 needs further diagnosis.

None of those observations requires assuming that the drain pump is electrically defective. Do not remove fitted cabinetry, disconnect concealed plumbing or test a powered pump just to complete a generic online checklist.

After any permitted maintenance, restore all parts before using the appliance. Watch for leakage at any disturbed connection during the approved check and stop if it occurs. If the code changes to E25, keep the new message with the earlier E24 history. The change may help the service team choose the right reference; it is not a reason to disregard the earlier findings.

If E24 keeps returning

A recurring message after the accessible checks needs further diagnosis. Bosch advises contacting support or arranging an engineer when the problem persists.

Tell the technician whether the dishwasher drained at all, when E24 appeared and whether the installation or plumbing recently changed. Include what you found at the hose route, connection and cover. These observations help narrow the inspection without treating the display as a diagnosis of a particular replacement part.

E25 has a separate Bosch support description focusing on the drain pump and its cover. Use the complete displayed code to choose the correct reference.