LG induction cooktop shows E4 and shuts down.

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

Failed NTC sensor on glass or coil, Loose sensor connection, Overheated internal components, Faulty control board

Safety first: Disconnect power at the breaker before opening the cooktop.

Allow cooling: Let the cooktop cool completely and ensure vents are clear.
Inspect sensors: Remove the bottom cover and locate temperature sensors attached to the glass or coils. Check for loose or disconnected wires.
Replace faulty sensor: If a sensor is physically damaged or tests open/shorted with a multimeter, replace it with an LG-compatible part.
Control board: If sensors and wiring are good, the control board may be faulty and require replacement.

Hard 4/5

Cooktop Temperature Sensor or Control Board

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