Bertazzoni REF36FDFZXNT Code E3: Quattro Temp Zone Sensor Failure

What E3 means

On the Bertazzoni REF36FDFZXNT French-door refrigerator, E3 is the message for a failed Quattro Temp Zone sensor. This sensor reports the temperature of the Quattro Temp Zone compartment to the control. The code appears while the controls are in locked mode, cycles if several codes are active, and an alarm chime sounds until you press any button. Other compartments are not named by this code.

Common causes of E3

A Quattro Temp Zone sensor with an open or shorted reading
A broken lead or loose plug at that compartment sensor
Condensation or ice around the sensor tip
A main board input that no longer reads it

✓ One safe check you can try

1. Press any button to quiet the chime. 2. Check what is stored in the Quattro Temp Zone and move delicate food to the main compartment if it feels off. 3. Slide the drawer fully shut and wipe away moisture. 4. Take a reading with a kitchen thermometer after several hours. 5. If E3 stays, call us instead of changing zone settings.

! Why to stop there

The sensor is built into the compartment and reaching it means taking the drawer assembly apart.
A broken lead and a failed sensor give the same code, so a meter is needed.
Without a reading the zone can freeze or warm its contents.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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E3E3 questions

What is stored in the Quattro Temp Zone?

It is the special compartment of this refrigerator that has its own sensor. Since E3 affects that sensor, check the contents by touch and with a thermometer.

Why is the alarm sounding?

On this model the codes show in locked mode and an alarm chime sounds. Any button silences it. The code itself stays on the display until the sensor is repaired.

Do other compartments still cool?

Yes. E3 concerns only the Quattro Temp Zone sensor, and the other cooling continues. We would test the sensor and connector during a visit and quote before work.