Bosch Dishwasher E24 Error: Drain Blockage
What Does Bosch Dishwasher Error Code E24 Mean? Error code E24 is one of the most frequently seen Bosch dishwasher errors. It indicates a drainage problem — the dishwasher cannot pump water out through the drain system, leaving standing water in the tub. Common Causes The three most common causes are: a clogged drain filter […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
No. Using the dishwasher with a drain blockage will result in dirty dishes and could cause water to back up and overflow.
Can I reset the code?
Yes. After clearing the blockage, E24 should clear on the next cycle. A manual reset can be done by pressing Start/Reset for 3 seconds.
When to stop immediately?
Stop if you notice: Water won't drain at all from the tub, Error returns after clearing all visible blockages.
Symptoms You May Notice
Standing water at the bottom of the tub
After a cycle ends, an inch or more of water remains pooled at the bottom of the dishwasher.
Dishes still dirty after full cycle
Dirty water recirculates onto dishes because it cannot drain, leaving them with a film.
Error appears near end of cycle
E24 typically shows during the drain phase, near the end of the wash program.
Possible Causes
Kinked or blocked drain hose
The drain hose is kinked behind the dishwasher or blocked internally with grease and debris.
DIY PossibleGarbage disposal knockout plug
If connected to a new garbage disposal, the knockout plug inside the drain port was not removed during installation.
DIY PossibleClogged drain filter
The filter assembly at the bottom of the tub is packed with food debris.
DIY PossibleSafe Checks You Can Do
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1
Check the drain hose
Pull the dishwasher out slightly and inspect the drain hose for kinks or sharp bends. Straighten any restrictions.
The drain hose should have a high loop under the counter to prevent backflow.
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2
Clean the drain filter
Remove and clean the filter assembly at the bottom of the tub under running water.
A clogged filter is the most common cause of E24 in Bosch dishwashers.
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3
Check garbage disposal connection
If connected to a garbage disposal, run the disposal to clear any blockage. Check that the knockout plug was removed during installation.
A blocked disposal is a very common cause of dishwasher drain errors.
When to Call a Professional
Contact a qualified technician if:
- Drain hose and filter are clear but water still won't drain
- Drain pump is not running at all
- Drain hose connection at the disposal or tailpiece is corroded
Need Professional Help?
Find qualified technicians in your area for proper diagnostics and repair.
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