Error code
Bosch Dishwasher Error Code E01
Bosch Dishwasher E01 usually means the dishwasher has detected an electronic control fault. Check the safe external items first, then stop if the code returns or there is leaking, burning smell, or poor heating.
Quick answer
E01: what does it mean and how to fix
What does it mean?
the dishwasher has detected an electronic control fault.
How to fix first
Switch the dishwasher off and isolate power for a few minutes.
Why is this happening?
Electronic control board fault
When should I call an engineer?
Call a dishwasher engineer if the code returns after safe checks, water appears under the appliance, heating is affected, the pump is noisy or jammed, or diagnosis would require access inside the cabinet.
What does this error code mean?
Bosch dishwasher error code E01 usually points to an electronic control or power-module fault. It is not a normal cleaning, loading, or detergent issue.
Try one safe power reset only. If E01 returns, avoid using the dishwasher because the fault may involve internal electrical components.
E01 usually points to the electronic control path, including control board, power module, wiring, and supply checks.
Symptoms users may notice
- The dishwasher may fail to start or stop very early.
- The display or buttons may behave unpredictably.
- E01 may return immediately after power is restored.
Why is this happening?
- Electronic control board fault
- Power module or communication issue
- Internal wiring or supply-related failure
What this usually points to
E01 usually points to the electronic control path, including control board, power module, wiring, and supply checks.
How to fix this safely
- Switch the dishwasher off and isolate power for a few minutes.
- Restore power and try one short programme only if the controls behave normally.
- Stop if E01 returns, the display flickers, or the dishwasher behaves unpredictably.
- Arrange diagnosis rather than opening the cabinet.
Can I fix this myself?
MaybeYou can carry out simple external checks such as filters, hoses, visible water, and correct loading. Stop when the fault points to internal pumps, heaters, wiring, or controls.
Safety boundary: Disconnect power before accessible checks. Do not remove panels, bypass safety devices, work on wiring, or run the dishwasher if water may be reaching electrical parts.
What not to do
- Do not keep repeating resets if the same code comes back.
- Do not remove panels or work on internal wiring, pumps, valves, or heater parts.
- Do not ignore leaks, burning smells, or unusual pump noises.
Reset steps
- Restore power only after the safe external checks are complete and the area is dry.
- Run one short test programme if there is no visible leak, smell, or electrical concern.
- Stop if the code returns or the dishwasher fails to fill, heat, drain, or wash normally.
Intermittent vs persistent faults
A one-off warning may clear after safe external checks, but repeated Bosch dishwasher faults should be treated as a persistent problem that needs diagnosis.
When to call an engineer
Call a dishwasher engineer if the code returns after safe checks, water appears under the appliance, heating is affected, the pump is noisy or jammed, or diagnosis would require access inside the cabinet.
Safety warning
Disconnect the dishwasher from power before checking accessible filters, hoses, or seals, and do not remove panels or work on internal electrical, pump, heater, or valve parts yourself.
Useful hub links
Related power and control fault codes
Bosch Dishwasher Error Code E09
the dishwasher is not heating water properly.
Bosch Dishwasher Error Code E19
a dishwasher valve or heat-exchanger related component may not be operating correctly.
Bosch Dishwasher Error Code E29
the dishwasher has detected an internal power, control, or supply-related fault.
Bosch Dishwasher Error Code E15
The dishwasher anti-flood system has been triggered
Relevant guide
Frequently asked questions
What does Bosch dishwasher E01 mean?+
Bosch Dishwasher Error Code E01 usually means the dishwasher has detected an electronic control fault.
How do I fix Bosch dishwasher E01?+
Start with safe external checks only: switch off power, inspect filters, hoses, water around the base, and the visible wash cabinet as relevant. If the code returns, arrange diagnosis.
Can I still use a Bosch dishwasher with E01?+
Do not keep using it normally while the code is showing. One short test is only reasonable after safe checks and only if there is no leak, smell, or electrical concern.
Model variation note
Bosch dishwasher code wording can vary by model. Use the exact model manual where available, and keep checks to safe user-accessible areas.