E5

Liebherr Global Flame Supervision / Safety Lockout

Gas cooktop shows E5 and shuts off gas supply shortly after ignition on all burners

Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Flame detection circuit failure, Common thermocouple ground fault, Faulty safety control board, Incorrect grounding of appliance

How to Fix / Troubleshooting

Safety first: Turn off all burners and shut off the gas supply. Disconnect power. Gas safety systems must not be bypassed.

User actions:

Do not attempt further operation until the system is inspected by a qualified technician.

Technician actions:

Verify correct earth/ground connection of the appliance according to Liebherr installation instructions.
Inspect all thermocouple connections and common grounding points for corrosion or loose screws.
Test each thermocouple individually for correct output.
If individual components are good, replace the flame supervision / safety control board.

Repair Difficulty

Professional Required 5/5

Required Part

Flame Supervision Control Board

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