Bosch · Dishwasher Moderate

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

$40-90 moderate difficulty 45 min Tools: screwdriver, towel

Diagnose first: Start with the sump filter (twist out at floor of tub); 70% of E22 codes clear with a cleaning.

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Didn't resolve it? Next suspect: Drain hose ($20-40)

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How to fix it

  1. Remove the bottom filter assembly and wash it under hot water.
  2. Clear any debris in the sump opening.
  3. 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 replacement
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More Bosch dishwasher codes

E01 E01 — Control board fault E02 E02 — Heating element / NTC sensor fault E03 E03 — Water not heating E04 E04 — Water flow / flow meter fault E05 E05 — Overfill / float switch tripped E06 E06 — Door-Closure or Aqua (Turbidity) Sensor Fault

All Bosch codes → All dishwasher codes →

Frequently asked questions

What does the E22 code mean on a Bosch dishwasher?

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.

What causes the E22 code on a Bosch dishwasher?

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.

Is it safe to keep using a Bosch dishwasher with a E22 error?

Yes, with caution. This is rated a moderate-severity fault.

How do I fix E22 on a Bosch dishwasher?

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).

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.