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Error code reference

GE Cooktop Error Code F82

User Interface (UI) Microprocessor Error (Electronic Control Radiant Cooktop).

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User Interface (UI) Microprocessor Error (Electronic Control Radiant Cooktop).

First step from the service manual

Replace Display Board (under Touch 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 F82 means on a GE cooktop

The F82 error code on a GE electronic control radiant cooktop indicates a User Interface (UI) Microprocessor Error. This fault originates in the display board assembly, which sits beneath the touch control board and houses the microprocessor responsible for interpreting user inputs and coordinating communication between the touch surface and the main control circuitry. When the microprocessor on this board fails to operate within expected parameters, loses communication integrity, or encounters an internal logic fault, the control system flags F82 to alert the technician that the UI processing hardware is compromised.

The display board in this application is a separate component from the touch board above it. The touch board captures capacitive input from the user, but the display board's microprocessor handles the actual processing of those signals and drives the visual feedback elements. A failure here can manifest as an unresponsive touch interface, garbled or blank display output, or a cooktop that simply locks out all operation. Causes typically include microprocessor failure due to voltage irregularities, heat-related degradation over time, or an internal firmware fault that leaves the processor in an unrecoverable error state.

The prescribed first diagnostic step is direct replacement of the display board located under the touch board. Because the fault is logged at the microprocessor level and the processor is integrated into the display board assembly, component-level repair is generally not practical. Technicians should disconnect power to the unit before beginning disassembly, remove the touch board to access the display board beneath it, and install a compatible replacement board before restoring power to verify the fault clears.

Source: manufacturer service documentation.

Common causes of F82

  1. 01

    Failed Display Board Microprocessor

    Part replacement

    The microprocessor integrated into the display board has failed or entered an unrecoverable fault state. This is the most direct cause of F82 and replacement of the display board is the primary diagnostic step.

  2. 02

    Voltage Irregularity or Power Surge

    Part replacement

    A spike or sag in supply voltage can damage the microprocessor or corrupt its operating state. If the error appeared after a power event such as a storm or outage, this is a likely contributor.

  3. 03

    Heat-Related Component Degradation

    Part replacement

    Prolonged exposure to elevated temperatures from cooking activity can degrade solder joints and semiconductor components on the display board over time. Intermittent or worsening errors before a hard fault are a sign of this cause.

  4. 04

    Poor Connection Between Touch Board and Display Board

    Wiring / connection

    A loose or corroded ribbon cable or connector between the touch board and the display board underneath it can disrupt communication and trigger a UI microprocessor error. Inspect connectors carefully before condemning the board.

  5. 05

    Touch Board Feeding Corrupted Signals

    Part replacement

    If the touch board above the display board is sending corrupted or erratic signals, it can overwhelm the display board microprocessor and cause a logged fault. If a new display board does not resolve the error, the touch board should be evaluated next.

See the test procedure for each cause

Frequently asked questions about F82

What does F82 mean on a GE cooktop?
F82 on a GE electronic control radiant cooktop indicates a User Interface Microprocessor Error. The fault is located in the display board, which sits beneath the touch board and contains the microprocessor that processes user inputs and controls the display. The cooktop will typically lock out or become unresponsive when this code is active. Replacing the display board is the first and primary diagnostic step.
Can I fix the F82 error myself, or does it require a technician?
A confident DIYer comfortable with appliance disassembly can attempt this repair, as the fix involves removing the touch board to access and replace the display board underneath it. Power must be disconnected at the breaker before starting any disassembly. However, if you are not comfortable working around appliance control electronics, having a qualified technician perform the board replacement is the safer option.
Is it safe to use my GE cooktop while it shows an F82 error?
A cooktop displaying F82 will generally be locked out or unresponsive, meaning the burners may not activate at all. You should not attempt to bypass the lockout or use the unit until the fault is resolved. Continuing to operate a cooktop with a known microprocessor fault creates an unpredictable control situation.
Will resetting the power clear the F82 error code?
A power reset, such as cycling the breaker, may temporarily clear the error in some cases, but F82 reflects a hardware-level microprocessor fault on the display board. If the board itself is faulty, the error will return shortly after power is restored. A lasting fix requires replacement of the display board rather than a reset.
How much does it cost to repair an F82 error on a GE cooktop?
Repair costs depend on whether you hire a technician or perform the repair yourself. The display board part itself typically falls in the range of $80 to $200 depending on the model. If you add professional labor, total repair costs commonly range from $150 to $350. Getting a firm parts quote for your specific model number before committing to the repair is a good practice.

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