UK Appliance Error Codes

Error code

Bosch Dishwasher Error Code E24

Bosch Dishwasher E24 usually means the dishwasher is not draining properly. Check the safe external items first, then stop if the code returns or there is leaking, burning smell, or poor heating.

Last updated: 12 May 2026

Quick answer

E24: what does it mean and how to fix

medium severity

What does it mean?

the dishwasher is not draining properly.

How to fix first

Switch off power before checking the filter area.

Why is this happening?

Blocked filter or sump area

When should I call an engineer?

Call a dishwasher engineer if the code returns after safe checks, water appears under the appliance, heating is affected, the pump is noisy or jammed, or diagnosis would require access inside the cabinet.

What does this error code mean?

Bosch dishwasher error code E24 usually means water is not leaving the dishwasher as expected. The most useful first checks are the filter, drain hose, sink spigot, and waste connection.

If the pump seems blocked or the fault changes to a pump obstruction warning, compare Bosch dishwasher E25. If debris is mainly in the filter area, see Bosch dishwasher E22.

E24 usually points to the drain path: filters, sump, hose, waste connection, and drain pump performance.

Symptoms users may notice

  1. Dirty water may remain in the base of the dishwasher.
  2. The programme may stop near the drain stage.
  3. The sink waste may gurgle or drain slowly at the same time.

Why is this happening?

  1. Blocked filter or sump area
  2. Kinked, trapped, or restricted drain hose
  3. Blocked sink spigot or waste connection
  4. Drain pump struggling under load

What this usually points to

E24 usually points to the drain path: filters, sump, hose, waste connection, and drain pump performance.

How to fix this safely

  1. Switch off power before checking the filter area.
  2. Remove and clean the accessible filter and check for glass, food debris, or labels.
  3. Check the drain hose and sink waste connection for kinks or blockages.
  4. Run one drain or short programme after refitting everything securely.

Can I fix this myself?

Yes

You can carry out simple external checks such as filters, hoses, visible water, and correct loading. Stop when the fault points to internal pumps, heaters, wiring, or controls.

Safety boundary: Disconnect power before accessible checks. Do not remove panels, bypass safety devices, work on wiring, or run the dishwasher if water may be reaching electrical parts.

What not to do

  1. Do not keep repeating resets if the same code comes back.
  2. Do not remove panels or work on internal wiring, pumps, valves, or heater parts.
  3. Do not ignore leaks, burning smells, or unusual pump noises.

Reset steps

  1. Restore power only after the safe external checks are complete and the area is dry.
  2. Run one short test programme if there is no visible leak, smell, or electrical concern.
  3. Stop if the code returns or the dishwasher fails to fill, heat, drain, or wash normally.

Intermittent vs persistent faults

A one-off warning may clear after safe external checks, but repeated Bosch dishwasher faults should be treated as a persistent problem that needs diagnosis.

When to call an engineer

Call a dishwasher engineer if the code returns after safe checks, water appears under the appliance, heating is affected, the pump is noisy or jammed, or diagnosis would require access inside the cabinet.

Safety warning

Disconnect the dishwasher from power before checking accessible filters, hoses, or seals, and do not remove panels or work on internal electrical, pump, heater, or valve parts yourself.

Useful hub links

Related drainage fault codes

Relevant guide

Frequently asked questions

What does Bosch dishwasher E24 mean?+

Bosch Dishwasher Error Code E24 usually means the dishwasher is not draining properly.

How do I fix Bosch dishwasher E24?+

Start with safe external checks only: switch off power, inspect filters, hoses, water around the base, and the visible wash cabinet as relevant. If the code returns, arrange diagnosis.

Can I still use a Bosch dishwasher with E24?+

Do not keep using it normally while the code is showing. One short test is only reasonable after safe checks and only if there is no leak, smell, or electrical concern.

Model variation note

Bosch dishwasher code wording can vary by model. Use the exact model manual where available, and keep checks to safe user-accessible areas.