Microwave clock resets or display flickers when starting a cooking cycle.

Safety first: Unplug the microwave before inspecting the cord or plug.

• Use dedicated outlet: Plug the microwave directly into a wall outlet without other heavy appliances on the same circuit.
• Avoid extension cords: If one is necessary, ensure it is rated for the microwave's power and is as short as possible.
• Check outlet firmness: Ensure the plug fits snugly in the outlet; loose contacts can cause voltage drops.
• Professional check: If flickering persists on a good circuit, the internal power supply or control board may be failing and should be replaced.

Warning: Persistent dimming of house lights when the microwave starts may indicate wiring issues; consult an electrician.