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Who touched the settings
A shared kitchen means many hands. A teenager experiments with the menu, a guest tries a feature, or you set a new drink size and forget. Then E37 appears. The code is model-dependent, so it cannot be read directly, but a changed setting is a simple possibility worth ruling out before any repair. A setting is a stored value that the control reads at the start of each cup, so a value outside what the hardware can handle may stop a brew even though no part has failed.
Settings that can matter
- Cup volume, which may exceed what the machine can deliver
- Temperature level for coffee or milk
- Grind fineness and coffee strength
- Water hardness, which tells the machine how often to ask for descaling
- Timers, standby delay and language
- Milk or foam level, where the machine offers it
An extreme value in one of these may push a part to its limit.
Returning to defaults
Your manual describes how to restore factory settings. Doing that once is safe and tells you whether a setting was the cause. Write down your preferred values first, so you can restore them later, one at a time.
Introduce changes slowly
If the code goes away at defaults, set your preferences back one by one, trying a cup after each. The change that brings back the code is the culprit, and that is useful for the technician too.
If defaults do not help
A code that returns on factory settings is not a settings problem. At that point the checks move to the hardware: the water path, the grinder, the heater and the board. The model number decides the order. A heater that cannot reach the set temperature and a grinder that cannot reach the set fineness are separate paths, so the exact model sets which is tested first.
Safe steps
- Note your current settings in a photo of each menu screen.
- Restore defaults following the manual.
- Make a standard cup and see whether E37 returns.
A household scenario
Imagine a holiday weekend with cousins staying. Someone raises the cup size to the maximum for a big mug and moves the grind to the finest, hoping for a stronger drink. On Monday the display shows E37. Nobody remembers touching anything, yet the machine is now running at the edge of what it can do on every cup.
Ask around the household before assuming anything has broken. A single question, who last used the menu, solves more cases than a toolbox.
Keep a settings note
Once things are working, write your preferred values on a card inside a cabinet door. After any future code, you can compare the machine’s current values with the card in seconds.
When to book
Book a visit if E37 appears on defaults. Settings cannot repair a part. After the machine is examined you will see the estimate in writing, and nothing is changed without your agreement.
Frequently asked questions
An extreme value can push a part to its limit, though the code’s meaning depends on the model.
It usually clears custom values, so photograph your settings first.
Then the cause is not a setting, and the machine needs a diagnosis.
It controls how often the machine prompts descaling, so a wrong value can lead to missed maintenance.
Model compatibility: Bertazzoni reuses codes across series and model years, so E37 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
