Gas Range Diagnostics

La Cornue Gas Range
Error Codes

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

Enter the code shown on your gas range 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

F5 F1 F2 F3 F6 F8 E0 E1 E4 E5

All Codes

E0 E1 E4 E5 F1 F2 F3 F5 F6 F8

Error Code Directory

Click any code for detailed troubleshooting steps

Low Medium High

Code Meaning Severity Common Symptom

E0 Control Board Comm Error Medium The digital display shows incomplete information, is partially lit, or goes completely blank despite the range having power. View E1 Gas Pressure Fault High All gas burners produce unusually small, weak flames that cannot reach full heat output even at maximum settings. View E4 Flame Supervision Failure High The oven burner ignites and produces a flame, but it extinguishes after 10-30 seconds as the flame sensor fails to confirm stable combustion. View E5 Gas Leak Detection Alert High A distinctive rotten-egg gas smell is noticeable near the range even when all burners and the oven are turned off. View F1 Oven Igniter Failure High The oven remains cold despite selecting a temperature and starting the cooking cycle, with no visible flame in the oven cavity. View F2 Oven Temp Sensor Fault Medium Food burns on one cycle and comes out undercooked on the next, even at the same temperature setting. View F3 Oven Overtemperature High The outer surfaces of the range become dangerously hot, potentially causing burns on contact and heating nearby surfaces. View F5 Gas Safety Valve Failure High The igniter reaches full temperature (bright orange glow) but the oven burner never lights because gas cannot pass through the valve. View F6 Thermostat Malfunction Medium Food burns at low temperature settings or remains raw at high settings, indicating the thermostat is not regulating properly. View F8 Burner Ignition Failure Medium The spark igniter clicks continuously but the burner does not light, despite gas being available. View