Oven displays E13 and beeps when any key is pressed; controls may be locked.

Safety first: If you need to remove the control panel, isolate the oven from mains power first.

Steps to check:

• Child lock: Consult the Tower user manual for the specific key combination to toggle child lock (often holding a specific button for 3–5 seconds). Attempt to unlock.
• Clean panel: Wipe the touch panel with a soft, dry cloth to remove moisture or grease that may cause false touches.
• Power reset: Turn off power for 5 minutes, then restore and test.
• Inspect keypad: If a physical button is stuck, remove the control fascia and check for misaligned plastic or debris. If the switch itself is faulty, the touch control PCB may need replacement.

Note: Persistent E13 after cleaning and reset usually indicates a failing keypad or control board.