Bosch Dishwasher Error Code E24 — Drain Error
What this means
The E24 error is the most common Bosch dishwasher error code. It means water isn't draining from the dishwasher. This is almost always caused by a clogged drain filter, kinked drain hose, or a garbage disposal connection issue.
Step-by-step fix
3 stepsClean the drain filter
Remove the bottom rack, twist out the cylindrical filter assembly, and clean it thoroughly under running water with a soft brush. Also clean the flat mesh filter underneath.
Bosch recommends cleaning the filter after every wash. Food particles, grease, and glass chips are common blockages.
Check the drain hose
The drain hose runs from the dishwasher to the sink drain or garbage disposal. Check for kinks. Make sure the hose has a high loop (it should rise to the underside of the countertop before going down to the drain).
The high loop prevents dirty water from siphoning back into the dishwasher.
Clear the garbage disposal connection
If connected to a disposal, run the disposal to clear it. Also check that the knockout plug was removed when the disposal was installed.
The knockout plug is the #1 missed step during garbage disposal installation.
When to call a professional
If filter, hose, and disposal are clear but the dishwasher still won't drain, the drain pump may be faulty.
Related error codes
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
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