GE Range Error Code F790

F790 on a GE range indicates a Main Logic Board internal touch key chip signal error. The touch key chip, which is mounted directly on the logic board, has failed or is producing invalid signals. This is an internal board fault and cannot be resolved by cleaning or adjusting external components. The Main Logic Board must be replaced to clear this error permanently.

An F790 error indicates a failure in the control board's touch input circuitry, which can affect your ability to reliably control the range. Cooking with a malfunctioning control board carries a risk of unintended behavior from the controls. It is generally advisable to avoid using the appliance until the board is replaced to ensure safe and predictable operation.

The cost to repair F790 depends on the price of the replacement Main Logic Board for your specific model and whether you hire a technician. Board parts typically range from around $100 to $300 or more depending on the model. Professional labor for diagnosis and board replacement generally adds $100 to $200 on top of the part cost. Getting a quote before committing to the repair is recommended, especially on older ranges where repair cost may approach replacement cost.

The repair for F790 requires replacing the Main Logic Board, which is a task that experienced DIYers can attempt if they are comfortable working with electrical components and can locate the correct replacement board for their model. The board is typically accessible after removing the rear panel or control panel, depending on the range design. If you are not comfortable with appliance electrical repairs, a qualified technician should perform the replacement.

Disconnecting the range from power for a few minutes may temporarily clear the F790 error from the display. However, because the fault is caused by a physically degraded touch key chip on the Main Logic Board, the error will return once the range is powered back on and the control system re-detects the faulty signal. A reset does not repair the underlying hardware problem.