Oven beeps continuously and displays F1, often shortly after power-up or during idle; oven may not heat.

Safety first: Disconnect power at the breaker before removing any panels. High voltage is present even when the oven is off.

Step-by-step checks:

• Power reset: Turn the range breaker OFF for 5 minutes, then back ON. If F1 returns immediately, suspect the keypad or control.
• Inspect control panel: Remove the backguard or front control panel screws to access the electronic oven control (EOC) and keypad ribbon cable.
• Check keypad ribbon: Gently unplug the flat ribbon from the control board. Inspect for burns, corrosion, or cracks. Clean the contacts with 90%+ isopropyl alcohol and reseat firmly.
• Isolate keypad vs. control: With power OFF, leave the keypad ribbon disconnected, restore power, and see if F1 reappears:
  • If F1 appears with keypad disconnected, the control board is likely bad.
  • If F1 does not appear but keypad is disconnected (and keys don’t work), the keypad/touch panel is likely shorted.
• Replacement: Replace the failed component (keypad/touch panel assembly or EOC). Transfer any wiring one connector at a time to avoid miswiring. Reassemble and test.

When to stop: If you smell burning, see scorched wiring, or are unsure about live-voltage testing, stop and contact a qualified technician.