Error code
Bosch Dishwasher E24 Error - Drainage Problem and Safe Checks
Bosch dishwasher E24 usually means the dishwasher is not draining properly. Start with the accessible filter, sump area, drain hose and waste connection, then stop if E24 returns, water appears underneath or the pump sounds strained.
Quick answer
E24: The dishwasher is not draining properly.
Meaning
The dishwasher is not draining properly.
First safe check
Switch the dishwasher off and disconnect power before checking the filter, sump, hose, or any wet area.
Stop if
Disconnect power before checks. Do not remove panels, bypass safety devices, dismantle the pump, or run the dishwasher if water may be reaching electrical parts.
Who to call
Call a dishwasher engineer if E24 returns after safe filter and hose checks, water appears under the appliance, the pump is noisy or jammed, the dishwasher is integrated and hard to access safely, or diagnosis would require removing panels.
Medium severity: check safely and stop if it returns. Disconnect power before checking accessible parts where the appliance guidance says to do so.
Fix time
10-25 minutes
Difficulty
Easy to moderate
Most first checks involve cleaning the filter and checking the visible hose and waste route.
Expected outcome: A simple blockage may clear after one short drain test; repeat E24 means the drain path or pump still needs diagnosis.
What does this error code mean?
Bosch dishwasher E24 usually means water is not leaving the dishwasher as expected. The appliance may stop because it cannot clear dirty water from the base before moving on with the programme.
The safest first checks are the filter, sump area, visible drain hose, and sink or waste connection. Food debris, labels, glass fragments, a kinked hose, or a blocked sink spigot can all create an E24-style drain restriction.
If the pump area itself seems blocked, compare Bosch dishwasher E25. If debris is mainly in the filter area, compare Bosch dishwasher E22. If water appears underneath the dishwasher, treat it as a leak risk and compare Bosch dishwasher E15 or Bosch dishwasher E30.
Symptoms users may notice
- Dirty water may remain in the base of the dishwasher.
- The programme may stop near a drain stage.
- The sink waste may gurgle or drain slowly at the same time.
- The pump may run longer than usual without clearing the water.
What users often notice
- E24 often appears near the start or end of a programme when the appliance expects water to drain.
- Users often search this as Bosch dishwasher not draining, water in the bottom, or E24 after cleaning the filter.
Why is this happening?
- Blocked filter, sump, or food-debris area
- Kinked, trapped, or restricted drain hose
- Blocked sink spigot, standpipe, or waste connection
- Drain pump struggling because debris is restricting water flow
- Backflow from a blocked household waste connection
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
- Switch the dishwasher off and disconnect power before checking the filter, sump, hose, or any wet area.
- Remove and clean the accessible filter, then check the visible sump area for food debris, labels, or glass fragments without reaching blindly.
- Check the visible drain hose for kinks, trapped sections, or a hose pushed awkwardly into the waste connection.
- Check the sink spigot or waste connection for a blockage if the dishwasher drains into the sink waste.
- Run one short drain or rinse test only after everything is refitted and dry; stop if E24 returns, water leaks, or the pump sounds noisy or strained.
Can I fix this myself?
YesYou can safely clean the accessible filter, inspect the visible sump area, and check the visible drain hose and waste connection. Stop when the fault points to the internal pump or cabinet access.
Safety boundary: Disconnect power before checks. Do not remove panels, bypass safety devices, dismantle the pump, or run the dishwasher if water may be reaching electrical parts.
What not to do
- Do not keep repeating resets if E24 comes back.
- Do not reach blindly into the sump because broken glass may be hidden.
- Do not remove panels or work on internal wiring, pump, valve, or heater parts.
Common misdiagnoses
- E24 can be mistaken for a pump failure when the issue is a blocked filter, hose, or sink waste.
- A clean filter does not rule out a kinked hose or blocked waste connection.
Reset steps
- Refit the filter and any accessible cover exactly as the manual describes.
- Reconnect power only when the surrounding area is dry and there is no visible leak.
- Run one short drain or rinse programme to check that water leaves normally.
- Stop if E24 returns, the pump is noisy, water remains in the base, or water appears under the dishwasher.
Intermittent vs persistent faults
A one-off E24 may clear after safe external checks. Repeated E24 warnings should be treated as a persistent drain problem that needs diagnosis.
When to call a technician
Call a dishwasher engineer if E24 returns after safe filter and hose checks, water appears under the appliance, the pump is noisy or jammed, the dishwasher is integrated and hard to access safely, or diagnosis would require removing panels.
Safety warning
Disconnect the dishwasher from power before checking accessible filters, hoses, or wet areas. Do not remove panels or work on internal pump, heater, valve, wiring, or control parts yourself.
Useful hub links
Related drainage fault codes
Bosch Dishwasher Error Code E15
The dishwasher anti-flood system has been triggered
Bosch Dishwasher Error Code E30
the dishwasher has detected a water safety, leak, or overfill-style problem.
Bosch Dishwasher Error Code E23 - Meaning, Causes & Fix
The dishwasher has detected a drain pump fault or blockage.
Bosch Dishwasher E25 Error - Drain Pump or Blockage Warning
The drain pump area may be blocked or unable to move water properly.
Relevant guide
Frequently asked questions
What does Bosch dishwasher E24 mean?+
Bosch dishwasher E24 usually means the dishwasher is not draining properly or water is not leaving the appliance as expected.
How do I fix Bosch dishwasher E24 safely?+
Disconnect power, clean the accessible filter, check the visible sump area, inspect the drain hose and waste connection, then try one short test only if everything is dry and refitted.
Is Bosch E24 the same as E25?+
They are closely related drain faults. E24 usually points to a drainage restriction, while [Bosch E25](/bosch/dishwasher/e25/) more directly suggests a pump-area blockage or pump problem.
Can a blocked sink waste cause Bosch E24?+
Yes. If the dishwasher drains into the sink waste, a blocked spigot or waste connection can stop the dishwasher emptying properly.
Can I keep using a Bosch dishwasher with E24?+
No. Do not keep running normal cycles while E24 is showing. One short test is only sensible after safe checks and only if there is no leak 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.