E22 — Filter Blocked
Per Bosch's official US error-code page, E22 can be caused by a number of issues — including a blocked dishwasher filter, a blocked drain pump, a loose drain pump cover, or a kinked drain hose/airgap.
- Keep using it?
- Yes, with caution
- DIY difficulty
- Easy
- Typical cost
- $40-90
- Verified against
- bosch-home.com ↗
The fix
Filter cleaning + drain pump
Drain / filter blocked - water not draining
Diagnose first: Start with the sump filter (twist out at floor of tub); 70% of E22 codes clear with a cleaning.
Find this part on Amazon →Didn't resolve it? Next suspect: Drain hose ($20-40)
As an Amazon Associate we earn from qualifying purchases.
How to fix it
- Remove the bottom filter assembly and wash it under hot water.
- Clear any debris in the sump opening.
- Reinstall the filter, seating it fully (turn to lock).
Why it happens
Typical signs: Water not draining well · Dishes not clean · E22 on the display
- Dirty filter basket Food and grease have clogged the bottom filter — the #1 cause.
- Debris in the sump Buildup in the sump beneath the filter.
Other parts sometimes needed
If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.
- Bosch Dishwasher Filter Common replacementAmazon →
More Bosch dishwasher codes
Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: bosch-home.com.