If your cooktop suddenly stops working, it may be due to a tripped circuit breaker, blown fuse, or power supply issue. Start by checking your electrical panel to ensure the breaker hasn’t tripped. For gas cooktops, verify the gas supply is on. With electric models, inspect the power cord and outlet. Individual burners might fail because of a faulty switch or element. If the issue persists, it could be an internal wiring problem or a malfunctioning control board. For reliable cooktop repair, professional diagnosis and repair can help restore proper function quickly.