Vault Oven Diagnostics

La Cornue Vault Oven
Error Codes

Meanings, severity levels, safe checks you can perform, and when to call a technician.

Enter the code shown on your vault oven display

Is it safe to keep using it?

Depends on code severity. Low/Medium codes often allow continued use, High severity requires immediate stop.

Can error codes be reset?

Some codes clear after power cycle. Persistent codes indicate underlying issues needing repair.

When should I stop using it?

Stop immediately for water leak codes, burning smell, or any High severity error.

Most Common Codes

E4 E6 F1 F2 F3 F5 F8 E0 E1

All Codes

E0 E1 E4 E6 F1 F2 F3 F5 F8

Error Code Directory

Click any code for detailed troubleshooting steps

Low Medium High

Code Meaning Severity Common Symptom

E0 Control Board Init Error High No display, no response to controls — the oven appears to have no power. View E1 Heating Element Fault Medium The vault cavity takes much longer to reach set temperature or has noticeable hot and cold spots. View E4 Ventilation System Fault Medium Food comes out steamed rather than roasted, and visible condensation forms inside the cavity. View E6 Moisture Sensor Failure Low Food is sometimes over-dried or under-dried, with unpredictable moisture in the finished product. View F1 Temp Sensor Open Circuit Medium The vault oven cavity remains cold after starting a cooking cycle. View F2 Temp Sensor Short Circuit Medium The vault oven begins heating but shuts down within seconds of starting. View F3 Overtemperature Condition High The heavy cast-iron exterior and surrounding surfaces are significantly hotter than normal. View F5 Control Board Comm Error High All buttons, knobs, and settings produce no response from the vault oven. View F8 Steam Generator Fault Medium The vault oven produces no visible steam when steam cooking mode is selected. View