Error code
Bosch error code E22
Bosch error code E22: the filter in the floor of the tub is blocked. What the code covers, what to check first, and what it does not tell you — on dishwashers.
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What we can confirm
Code E22, from the manufacturer's own documentation
A code is only meaningful together with the machine showing it — the same digits mean different things on different equipment.
What it narrows down to
Filter blocked
What you are probably seeing
Diagnostic
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What it looks like from the kitchen
The symptom this code usually arrives with
A code names the subsystem; the symptom is what sent you to look at the display in the first place. That page says what it usually turns out to be, cheapest cause first.
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The most common call Dishwasher not draining
Water standing in the bottom of the tub after a cycle. Two of the five causes come out by hand without tools, which makes this the symptom most worth five minutes before booking anything.
- Standing water after every cycle
- A code in the twenties, or four flashing lights
- Dishes clean on top, wet and gritty below
On the same appliance
What else belongs to the dishwashers
On this make a code belongs to the appliance rather than to a product line. These are the other conditions this machine can display, and the models that can show this one — a display often has more than one thing to say, and the model number decides what any of it costs to put right.
Other codes this appliance can display
Heat pump circuit
Board relay
Heating self-test
Wash arm diverter
Door sensor
Drying fan
Heat pump heater
Mineral chamber heater
Scale build-up
Flow meter
Leak protection
Water not entering
The same digits mean different things on different equipment. Search the full code list
In more detail
About Bosch error code E22
What this one means
The filter in the floor of the tub is blocked.
The other ways your machine may say it
The same condition is published under more than one label, because it has been carried across generations of this appliance:
- E22, E-22, E9240, E92-40 — the same condition, on machines of different ages
What the code covers
A published cause names a circuit rather than a component, which is the single most useful thing to know before ordering a part. This one covers:
- Food and grease across the filter mesh
What to try yourself
- Twist the filter out by hand — no tools
- Rinse it under a tap with mild soap and a soft brush
- Twist it back until it seats fully
Then what
This is the code most likely to cost you nothing. If it comes back within a month, something upstream is loading the filter faster than it should — usually a machine run only on short, cool cycles.
This code is published for dishwashers. The full list of codes has the rest.
This article is based on:
- Official manufacturer documentation
- Internal repair procedures
- Technician repair history
- Company quality standards