FROM THE TROUBLESHOOTING LIBRARY
Bosch Dishwasher E24 or E22 Error: Not Draining
Short answer: E24 on a Bosch dishwasher means it is not draining properly. Bosch's checks, in order: clean the filter, make sure the drain pump cover is not blocked or loose, straighten a kinked drain hose, and clear the air gap or garbage-disposal connection. Bosch lists E22 with the same causes, so this guide covers E22 too.
What E24 means
Bosch says E24 means the dishwasher is not draining properly, commonly because the drain filter is blocked. Bosch also lists a kinked hose, pump-cover issue, siphon connection or an unremoved garbage-disposal knockout plug as possible causes.
Primary references: Bosch E24 support page and the Bosch US error-code index, which gives E22 the same causes.
Safe checks
- Switch off the dishwasher and let hot water cool.
- Clean the removable filter using the exact manual. Check the pump-cover area only as far as the manual shows and remove loose debris carefully.
- Inspect the visible drain hose for kinks. If connected to a disposer, have the installer or qualified person verify the knockout plug was removed.
- Reset the dishwasher using the manual. If E24 remains, contact Bosch service.
When to stop
Do not disconnect a drain hose with standing water unless you can contain it safely and the manual authorizes the step. Sharp debris, leaks or repeat E24 are service boundaries.
Parts You Might Need
- Model-specific Bosch dishwasher drain hose
- Model-specific Bosch dishwasher filter