Bertazzoni REF18WCB/REF24WCB Codes E11 and E12: Lower Zone Frosting Probe Open or Shorted

What E11/E12 means

On Bertazzoni REF18WCB and REF24WCB built-in wine coolers, such as the REF24WCBPNV and REF18WCBPRV, E11 and E12 are the lower zone frosting probe codes. E11 means the probe is open, and E12 means it is shorted. The buzzer sounds "tic" three times, the code flashes every 10 seconds, and the on/off key silences the buzzer. A service technician is needed.

Common causes of E11/E12

A lower zone frosting probe that has failed open (E11) or shorted (E12)
A damaged lead or loose plug at that probe
Frost or moisture around the lower probe
A control board input that cannot read the probe

✓ One safe check you can try

1. Press the on/off key to silence the buzzer. 2. Check the bottom zone for frost on the back wall. 3. Keep bottles clear of the rear wall. 4. Read the lower zone with a thermometer after several hours. 5. Call us and tell us whether E11 or E12 appears.

! Why to stop there

The probe lies behind the lining of the lowest zone and can only be reached by taking things apart.
Chipping frost can puncture tubing, which is a major repair.
Without knowing whether it is open or shorted, the wrong part may be ordered.

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.

→Same appliance

Other Wine Column codes

Upper or lower zone too warmBertazzoni Wine Column Message "Upper or Lower Zone Too Warm": Zone Above Setpoint Upper or lower zone too coldBertazzoni Wine Column Message "Upper or Lower Zone Too Cold": Wait Before Calling Check condenserBertazzoni Wine Column Message "Check Cond": Time to Clean the Condenser Door openBertazzoni Wine Column Message "Door open": Door Left Open Too Long E1/E2Bertazzoni REF18WCB/REF24WCB Codes E1 and E2: Upper Zone In-Cabinet Probe Open or Shorted E3/E4Bertazzoni REF18WCB/REF24WCB Codes E3 and E4: Upper Zone Frosting Probe Open or Shorted E5/E6Bertazzoni REF18WCB/REF24WCB Codes E5 and E6: Middle Zone In-Cabinet Probe Open or Shorted E7/E8Bertazzoni REF18WCB/REF24WCB Codes E7 and E8: Middle Zone Frosting Probe Open or Shorted

E11/E12E11/E12 questions

Where is the lower zone probe?

At the cooling surface of the lowest zone of the cabinet. It reports frost conditions to the control, which cannot be done from the front of the cabinet.

What do the two numbers mean?

E11 is an open circuit and E12 is a short circuit. Only one appears at a time. Telling us which you see speeds up the visit.

Will the wine in the lower zone be affected?

It might drift over time. Use a thermometer in the lower zone and move bottles if the reading leaves your range. We repair it after a written quote and give a 30-day workmanship warranty.