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Error code reference

GE Cooktop Error Code F73

User Interface key fault.

GE codesGE cooktop codes

User Interface key fault.

First step from the service manual

Clean UI. Cycle power. Replace UI Board.

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

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  • Step-by-step tests with expected resistance, voltage, and continuity values
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What F73 means on a GE cooktop

The F73 error code on a GE cooktop indicates a User Interface (UI) key fault. This means the control board has detected a problem with one or more of the touch keys or physical buttons on the cooktop's user interface panel. The UI board is responsible for translating user input, such as element selection, temperature adjustments, and timer settings, into control signals sent to the main control board. When a key registers as continuously active, shorted, or unresponsive for a defined period, the system flags the F73 fault.

The most common trigger for this fault is contamination on the control panel surface. Spilled liquids, grease buildup, or food debris can bridge the capacitive touch sensors and simulate a stuck key condition, causing the controller to register an input that never clears. This is why the first diagnostic step is to thoroughly clean the UI panel surface before attempting any component-level repair.

If cleaning and power cycling do not resolve the fault, the UI board itself is likely defective. Internal failures such as a cracked solder joint, a failed touch sensor layer, or a corrupted key scan circuit within the board can produce a persistent F73 condition. In these cases, the UI board requires replacement. The fault can also occasionally stem from wiring harness issues between the UI board and the main control board, such as a loose connector or damaged ribbon cable.

Source: manufacturer service documentation.

Common causes of F73

  1. 01

    Contaminated control panel surface

    Wiring / connection

    Spilled liquids, grease, or food residue on the touch panel can cause one or more keys to register as continuously pressed. Carefully cleaning the UI panel surface with a damp cloth and mild cleaner is always the first step.

  2. 02

    Temporary control board glitch

    Wiring / connection

    A transient electronic error can cause the UI key scan circuit to misread a key state. Cycling power by turning off the circuit breaker for 30 to 60 seconds and restoring it often clears this type of fault.

  3. 03

    Failed UI board

    Part replacement

    Internal failure of the user interface board, such as a damaged touch sensor layer, failed key scan circuit, or cracked solder joint, will produce a persistent F73 that cleaning and power cycling cannot resolve. Board replacement is required.

  4. 04

    Loose or damaged wiring harness connection

    Wiring / connection

    A loose connector or damaged ribbon cable between the UI board and the main control board can cause intermittent or false key fault signals. Inspect connectors for secure seating and check the cable for visible damage.

  5. 05

    Physically stuck or damaged key

    Part replacement

    A key that is physically depressed or mechanically stuck due to impact or debris trapped beneath a button can register as a continuous input. Inspect the panel for any keys that appear sunken or do not spring back normally.

See the test procedure for each cause

Frequently asked questions about F73

What does F73 mean on a GE cooktop?
F73 on a GE cooktop indicates a User Interface key fault, meaning the control system has detected that one or more keys on the control panel are registering as stuck, shorted, or otherwise not functioning correctly. This can be caused by surface contamination, a wiring issue, or a failed UI board. The cooktop flags this code to prevent unintended operation caused by a faulty input.
Can I fix the F73 error myself without replacing parts?
Yes, in many cases the F73 error can be resolved without replacing any parts. Start by thoroughly cleaning the control panel surface to remove any grease, spills, or debris that may be causing a key to read as continuously active. After cleaning, cycle the power at the circuit breaker for at least 30 to 60 seconds and restore it to see if the fault clears. If the error returns after cleaning and power cycling, a UI board replacement will likely be needed.
Is it safe to use my GE cooktop while the F73 error is displayed?
It is not recommended to continue using the cooktop while the F73 fault is active. A UI key fault can cause unpredictable control behavior, including unintended element activation or incorrect temperature settings. Power off the cooktop at the circuit breaker until the fault has been diagnosed and resolved.
Will resetting the cooktop clear the F73 error code?
A power reset by turning off the circuit breaker for 30 to 60 seconds and restoring power can clear the F73 code if the fault was caused by a temporary electronic glitch. However, if the underlying cause is physical contamination on the panel or a failed UI board, the error will return after the reset. Cleaning the panel before or alongside the reset improves the chances of a lasting resolution.
How much does it cost to repair a GE cooktop F73 error?
If the fault is resolved by cleaning alone, there is no parts cost involved. If a UI board replacement is required, parts typically range from around 80 to 200 dollars depending on the specific cooktop model, with professional labor adding another 100 to 200 dollars or more depending on your location and service provider. Diagnosing the cause accurately before ordering parts helps avoid unnecessary expenses.

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