Unit beeps repeatedly and will not start, but no error code is shown.

Safety first: Unplug before inspecting switches if needed.

• Check door/basket: Remove and reinsert the basket or close the door firmly until the beeping stops.
• Re-select program: Clear any previous settings by pressing Cancel, then choose a mode, set time and temperature, and press Start.
• Clean touch panel: Wipe the panel with a dry cloth to remove moisture that may cause false touches.
• Power reset: Unplug for 5–10 minutes to reset the control. If beeping persists with no code, the touch panel or control board may need service.