F13 displayed; oven controls may not respond correctly or keypad functions are scrambled

Safety first: Disconnect power at the breaker before removing any panels.

• Reset control: Turn power off for 10 minutes to clear transient memory errors. Restore power and check if F13 returns.
• Check keypad ribbon:
  • Remove the backguard cover to access the control board.
  • Disconnect and reseat the keypad ribbon cable several times to clean contacts.
  • Inspect for bent pins or damaged traces.
• Verify correct parts:
  • If the control or keypad was recently replaced, confirm the part numbers match your exact Frigidaire Professional model.
  • Incorrect keypad or control can trigger F13.
• Replace control board:
  • If F13 persists with a known-correct keypad and good connections, the EEPROM on the EOC is likely corrupted.
  • Replace the electronic oven control board with the correct OEM part.

Warning: Do not attempt to reprogram or modify the EEPROM yourself; use the correct factory control board.