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Error code reference

GE Range Error Code F790

Main Logic Board internal touch key chip signal error.

GE codesGE range codes

Main Logic Board internal touch key chip signal error.

First step from the service manual

Replace Main Logic Board.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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  • Wiring diagram references and connector pinouts from the OEM service manual
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What F790 means on a GE range

The F790 error code on a GE range indicates an internal touch key chip signal error originating within the Main Logic Board. The touch key chip is an integrated component on the logic board responsible for processing capacitive or resistive input signals from the control panel's touch keys. When this chip fails to produce valid signals or loses communication with the board's primary processor, the control system flags F790 to alert that the user interface input circuitry has malfunctioned.

Because the fault is internal to the Main Logic Board itself, the failure is not related to external wiring, the keypad membrane, or user-replaceable sensors. The chip involved is soldered directly onto the board, making component-level repair impractical for most technicians. Causes can include voltage irregularities that damage the chip over time, heat stress from prolonged high-temperature cooking cycles, or simple electronic component degradation. Static discharge events or power surges reaching the board can also corrupt or destroy the touch key signal chip.

The diagnostic path for F790 is straightforward: since the fault is isolated to an internal chip on the Main Logic Board, the board itself must be replaced. There are no external components to test or swap before replacing the board. A power cycle reset may temporarily clear the error display, but if the chip is physically degraded, the fault will return during normal operation. Technicians should confirm the board is the correct replacement part for the specific model before ordering.

Source: manufacturer service documentation.

Common causes of F790

  1. 01

    Failed internal touch key chip on Main Logic Board

    Part replacement

    The touch key signal chip is integrated directly onto the Main Logic Board and cannot be serviced separately. When this chip degrades or fails, F790 is triggered and board replacement is required.

  2. 02

    Power surge or voltage spike damage

    Part replacement

    A sudden surge in household voltage can damage sensitive chips on the logic board, including the touch key processor. If the error appeared after a storm or power outage, surge-related board damage is likely.

  3. 03

    Heat stress and thermal degradation

    Part replacement

    Extended exposure to elevated temperatures in a range environment can cause solder joints or chip components on the logic board to fail over time. This type of failure tends to occur on older units or those used heavily.

  4. 04

    Electrostatic discharge damage

    Part replacement

    Static discharge events reaching the control board can corrupt or permanently damage the touch key chip. This is more common in dry climates or after servicing the unit without proper anti-static precautions.

See the test procedure for each cause

Frequently asked questions about F790

What does F790 mean on a GE range?
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.
Can I fix F790 on my GE range myself?
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.
Is it safe to use my GE range while F790 is displayed?
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.
Will resetting my GE range clear the F790 error?
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.
How much does it cost to repair a GE range F790 error?
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.

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