If your Bertazzoni dishwasher shows E21, start with the safe checks here. The code often tracks a possible motor or movement-related problem before any parts talk with Bertazzoni Appliance Repair.
Reviewed by Marco Bellini · Last reviewed August 12, 2026
Written by
Marco Bellini Appliance Repair Content SpecialistPublished August 10, 2026Technically reviewed August 12, 2026
Content status:
Needs Technical Review — this entry is awaiting technical verification and should be confirmed before it is relied upon.
Error codeE21
ApplianceDishwasher
Affected model seriesBertazzoni dishwasher controls that show service codes
Quick answer
E21 — commonly associated with a motor issue on a Bertazzoni dishwasher. Meaning can vary by model; verify before relying on it.
Model compatibility: Bertazzoni reuses codes across series and model years, so E21 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
If your Bertazzoni dishwasher shows E21, start from the idea of a possible motor or movement-related problem — then confirm in the manual. Do not open sealed, gas, or live panels to “prove” it. Bertazzoni Appliance Repair uses the code as a starting clue; final diagnosis still follows your appliance’s documentation.
Signs
Symptoms you may notice
The dishwasher shows E21 and movement stalls or is noisy
The drum or fan doesn’t turn as expected with E21
The dishwasher interrupts its cycle when E21 appears
Why it happens
Possible causes
An obstruction or imbalance affecting movement
A motor, belt or bearing issue (varies by model)
A control or sensor related to the motor
Before you call
Safe checks you can make
These are simple, non-hazardous checks only. If anything is unclear, stop and contact a technician.
Confirm the load is balanced and not jammed
Check for visible obstructions around the drum or impeller
Perform a manufacturer-approved restart
Record the full Bertazzoni model and serial numbers before contacting a technician
Important safety warning. Do not open internal panels, access high-voltage wiring, or bypass any safety device. If you see smoke, sparks, a burning smell, or water near electrical parts, switch the appliance off at the outlet if it is safe to do so and call a professional.
Please avoid
What not to attempt
Do not open internal panels or access high-voltage components
Do not bypass door locks, safety switches or interlocks
Do not keep running the appliance if there is water near electrical parts, a burning smell or sparks
Get help
When to call a technician
When E21 returns after one careful reset, pause DIY cycling and schedule Bertazzoni Appliance Repair. Bring photos of the code and the rating plate.
Seeing this code on your Bertazzoni appliance?
Book a specialist visit for a clear estimate and approval before any repair. Independent service — not an official Bertazzoni service center.
Yes for a single reset after safe checks — no for repeated clears. Recurring E21 belongs with an independent technician at Bertazzoni Appliance Repair.
No single dictionary covers every Bertazzoni dishwasher. Bertazzoni Appliance Repair matches the display to your model sheet during diagnosis.
No. Bertazzoni Appliance Repair publishes independent repair guidance for homeowners. Use your Bertazzoni model manual for manufacturer wording, then book an independent technician if the fault continues.
References
Sources & references
Bertazzoni owner documentation — display codes and messages
