mypros+
Error code reference

GE Range Error Code F820

Main Logic Board EEPROM memory error.

GE codesGE range codes

Main Logic Board EEPROM memory 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.

MyPros+ Max

Get the full diagnostic procedure for F820.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What F820 means on a GE range

The F820 error code on a GE range indicates a fault within the EEPROM (Electrically Erasable Programmable Read-Only Memory) on the main logic board. The EEPROM is a small non-volatile memory chip that stores critical configuration data for the range, including calibration settings, cooking cycles, and operational parameters. When the control system detects that this memory is corrupted, unreadable, or returning invalid data, it triggers the F820 code to alert the user and technician that the board can no longer reliably manage range operations.

EEPROM failures can result from power surge events, extended voltage fluctuations, or simply age-related degradation of the memory chip itself. In some cases, a failed write cycle during a firmware update or power interruption can corrupt stored data. Because the EEPROM is integrated directly onto the main logic board as a surface-mounted component, it is not serviceable as a standalone part in the field.

The recommended first diagnostic step is direct replacement of the main logic board. Since the EEPROM cannot be reprogrammed or replaced independently at the component level in a standard service call, swapping the entire board is the correct and most reliable resolution. Before replacing the board, technicians should verify that incoming line voltage is within specification to rule out a recurring power quality issue that could damage a replacement board.

Source: manufacturer service documentation.

Common causes of F820

  1. 01

    Failed main logic board EEPROM

    Part replacement

    The EEPROM memory chip on the main logic board has degraded or failed, causing corrupted or unreadable data. Since the chip is surface-mounted and not field-serviceable, the entire main logic board must be replaced.

  2. 02

    Power surge or voltage spike

    Part replacement

    A sudden surge in line voltage can corrupt or permanently damage EEPROM memory. Check for signs of electrical damage on the board and verify that line voltage is within the range's specified operating parameters before installing a replacement board.

  3. 03

    Power interruption during memory write cycle

    Part replacement

    If power was lost while the board was writing data to the EEPROM, the stored data can become corrupted. This type of corruption is permanent and requires board replacement rather than a simple reset.

  4. 04

    Age-related memory degradation

    Part replacement

    EEPROM chips have a finite number of read and write cycles. On older ranges, the memory may degrade over time leading to this fault even without a specific triggering event.

See the test procedure for each cause

Frequently asked questions about F820

What does F820 mean on a GE range?
The F820 code on a GE range indicates a memory error on the main logic board, specifically within the EEPROM chip that stores the range's operating data and configuration settings. The control system has detected that this memory is corrupted or unreadable. This fault requires replacement of the main logic board to resolve.
Can I fix the F820 error myself, or do I need a technician?
The F820 error requires replacing the main logic board, which involves working with electrical components and disconnecting power safely. While a skilled DIYer comfortable with appliance repair may be able to complete the board swap, most homeowners will benefit from having a qualified technician handle the repair to avoid injury or further damage to the range.
Is it safe to use my GE range while it shows the F820 error?
It is not recommended to continue using the range while the F820 error is active. A corrupted main logic board memory can cause unpredictable control behavior, meaning the range may not respond correctly to input or may not regulate temperatures accurately. Discontinue use until the board has been replaced.
Will resetting the range clear the F820 error code?
A power reset, such as unplugging the range or cycling the circuit breaker, may temporarily clear the F820 code, but it will return because the underlying EEPROM fault on the main logic board is a hardware failure. A reset does not repair corrupted or failed memory, so board replacement is still required for a permanent fix.
How much does it cost to fix a GE range F820 error?
The cost to resolve an F820 error depends on the specific range model and labor rates in your area. Main logic board parts typically range from around $150 to $350 or more, and professional labor can add $100 to $200 on top of that. Getting a repair estimate before proceeding is a good idea, as total costs can sometimes approach the value of an older range.

Related GE range codes

All GE range codes
View all 303 GE range codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass