F70 error code, communication error between display board and main 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 communication harness, Failed display/UI board, Failed main control board, Electrical noise or surge damage

Safety: Turn off power before accessing controls.

Inspect harness: Remove the control panel and check the multi-wire harness between the UI and main board. Reseat connectors.
Look for damage: Check for burnt components or corrosion on either board.
Sequential replacement: Replace the UI/display board first, as it is often the failure point. If F70 persists, replace the main control board.
Surge protection: Consider using a surge protector on the range circuit if local power is unstable.

Hard 4/5

User Interface (UI) Board

Check Price on Amazon

We may earn a commission from links on this page.