Bosch identifies E22 as a blocked dishwasher filter, sometimes alongside a drain-pump obstruction.
What E22 means
Bosch identifies E22 as a blocked dishwasher filter, sometimes alongside a drain-pump obstruction.
What you may notice
- The display or status light shows E22
- Water remains above the filter
- The cycle ends early
- The pump runs for a long time
Most likely causes
- 01The filter is blocked
- 02The pump cover is loose
- 03The drain hose is kinked
- 04The sink air gap or disposer is blocked
- 05The drain pump needs service
Safe checks, in order
Start with the simplest non-invasive check. Stop as soon as the error clears; repeated resets can hide a condition without correcting it.
Turn off the appliance
Wait for all pump noise to stop.
Clean the filter
Wash the model-approved filter under running water and reinstall it correctly.
Check the sink side
Inspect the air gap, disposer connection, and accessible drain hose for blockage.
Run one rinse test
After reassembly, test a short rinse while watching for leaks.
Know where to stop
Switch off power before reaching below the filter. Hidden glass or sharp debris may be present.
When to call a technician or support
Contact service if the pump cover is damaged, the pump will not run, or the warning returns with a clear path.
When you call, have the exact product model, the complete code or light pattern, and when it appeared.
Where this information came from
We use the manufacturer's current published guidance as the starting point, then organize it into a safer, beginner-friendly sequence.
Bosch Owner Support — dishwasher error codes Source last checked August 18, 2026. Manufacturer instructions and model manuals take priority over this independent summary.