Microwave displays F6E0, often described as 'lost communication' between UI and control

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

Loose harness between UI and main board, Failed UI board, Failed main control board

Safety: Disconnect power before removing the control panel.

Inspect harness: Locate the multi-wire harness between the user interface board and the main control board. Reseat both ends.
Check for damage: Look for pinched wires, corrosion, or burnt connectors.
Test after reseating: Reassemble enough to power the unit safely and see if the error clears.
Replace boards as needed: If the error persists, replace the UI board first (most common). If still unresolved, replace the main control board.

Hard 4/5

User Interface Board

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