E16 is a Bertazzoni coffee machine diagnostic usually grouped with a possible heating, flow or limescale-related problem. This page keeps DIY limits clear; recurring faults belong with an independent technician at 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 codeE16
ApplianceCoffee Machine
Affected model seriesSelect Bertazzoni electronic-control appliances (verify the code map for yours)
Quick answer
Seeing E16? On many Bertazzoni coffee machine units it relates to a heating/flow issue. Capture the model plate before resetting.
Model compatibility: Bertazzoni reuses codes across series and model years, so E16 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 coffee machine shows E16, start from the idea of a possible heating, flow or limescale-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 coffee machine shows E16 and output is weak or cold
Flow seems restricted when E16 appears
The coffee machine pauses with E16 displayed
Why it happens
Possible causes
Limescale affecting heating or flow
A flow or pump restriction
A heater or sensor issue
Before you call
Safe checks you can make
These are simple, non-hazardous checks only. If anything is unclear, stop and contact a technician.
Run a descale cycle if the machine indicates one is due
Confirm the water tank is filled and correctly seated
Perform a manufacturer-approved restart
Photograph the display and rating label so an independent tech can match the code to your model
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
If you are unsure at any point with E16 on screen, contact Bertazzoni Appliance Repair for on-site confirmation rather than opening panels yourself.
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 E16 comes back on the next use, contact Bertazzoni Appliance Repair.
The same characters can map to different subsystems on different Bertazzoni controls. Always verify E16 against your unit’s documentation.
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
