Bertazzoni dishwasher owners see E30 when a possible heating-related problem is in play. Use this guide, then schedule diagnosis with Bertazzoni Appliance Repair if it returns.
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 codeE30
ApplianceDishwasher
Affected model seriesBertazzoni dishwasher controls that show service codes
Quick answer
E30 on a Bertazzoni dishwasher: plain-language overview tied to a heating issue — not factory service literature.
Model compatibility: Bertazzoni reuses codes across series and model years, so E30 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
On many Bertazzoni dishwasher models, E30 is commonly tied to a possible heating-related problem. Series and control generations differ — confirm the wording in your model documentation before acting. Treat this as independent homeowner guidance from Bertazzoni Appliance Repair, not a substitute for model-specific service literature.
Signs
Symptoms you may notice
The dishwasher shows E30 and results are cold or under-heated
The cycle runs longer than usual before E30 appears
Heating seems weak or absent when E30 is shown
Why it happens
Possible causes
A heating element or its relay
A control or sensor affecting heating
Limescale or wear reducing heat on some models
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 appliance has power at the outlet
Allow the appliance to cool fully before any check
Perform a manufacturer-approved restart
Write down when E30 appeared and which cycle or mode was running
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
E30 that survives basic checks belongs with independent service. Bertazzoni Appliance Repair verifies the cause against your model documentation first.
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.
Clearing the display is fine once notes are saved — it is not a repair. When E30 comes back on the next use, contact Bertazzoni Appliance Repair.
If two manuals disagree about E30, trust the literature for your exact model — then book independent help if the fault continues.
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
Model-specific Bertazzoni manual — confirm the exact code wording
