Error code
Bosch error code E23
Bosch error code E23: the drain pump is blocked, jammed or has failed. What the code covers, what to check first, and what it does not tell you — on dishwashers.
- From $95 diagnostic, credited to the repair
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- In writing the price, before anything is opened
What we can confirm
Code E23, 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
Drain pump
What you are probably seeing
Diagnostic
From $95, credited to the repair
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 E23
What this one means
The drain pump is blocked, jammed or has failed.
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:
- E23, E6101 — 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:
- Debris in the pump
- A seized impeller
- A failed motor
What to try yourself
- Bail out any standing water
- Lift the drain pump cover beside the filter and clear what is in there
- Click the cover firmly back until it seats
Then what
A pump that hums without moving water is usually jammed rather than dead, and clearing it is the whole repair.
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