Quick answer
Reset power once and stop if E02 returns, because board faults are service-level.
Safety note
Disconnect power before opening panels or touching wiring. If water is leaking near electricity, stop and call a qualified technician.
Related problem hub
See more electronic communication fault appliance codes across other brands and appliance types.
What E02 means
On many Bosch dishwasher models, E02 belongs to the electronic communication fault category. One control board or sensor is not communicating normally with another part of the appliance.
Codes and exact steps can vary by model number, production year, and regional design. Use this guide as first-pass orientation and confirm model-specific details with the manufacturer source listed below.
Before you start
Write down the full model number and the exact display text before changing parts or clearing the control. Similar-looking codes can map to different model families, and a reset can erase useful timing clues.
If the appliance shows active leaking, a burning smell, smoke, gas odor, repeated breaker trips, or water near power, stop this checklist and use qualified service.
Common causes
- Temporary control board fault
- Loose wiring harness
- Moisture near a control panel
- Failed control board or user interface
Recommended check order
- Confirm the model number and exact code spelling.
- Turn the appliance off and disconnect power for 5 minutes.
- Restore power and run a short cycle only if there is no burning smell or visible damage.
- Do not open control housings unless you are qualified to service appliances.
- Run one controlled reset only when the appliance is dry, stable, and safe.
- Stop if E02 returns immediately or appears on an empty test.
Safe checks before service
- Turn the appliance off and disconnect power for 5 minutes.
- Restore power and run a short cycle only if there is no burning smell or visible damage.
- Do not open control housings unless you are qualified to service appliances.
What not to do
- Do not bypass locks, sensors, fuses, or leak protection to force a cycle.
- Do not open powered panels or touch wiring for a code check.
- Do not assume one display code proves one specific part has failed.
Stop and call a technician when
- The code returns immediately after a reset.
- Multiple unrelated codes appear together.
- The appliance starts or stops unpredictably.
FAQ
Is E02 always a broken part?
No. On a Bosch dishwasher, E02 usually identifies a electronic communication fault category. A blocked hose, dirty filter, uneven load, or unsafe operating condition can trigger a code before a part failure is confirmed.
Can I reset E02?
A single power reset can be reasonable after visible checks are complete and the appliance is safe. If E02 returns immediately, treat it as an active fault rather than a nuisance message.
Why does model number matter?
Brands reuse similar code text across model families. The model number controls the exact manual steps, access points, and service boundary.
Aliases and related display text
People may search for this same condition using different capitalization or alternate display forms.
- E02
- E2