Range or cooktop trips the circuit breaker or blows a fuse when turned on.

Safety first: Do not repeatedly reset a tripping breaker. Disconnect the appliance and leave it off until the fault is found.

• Visual inspection: Remove rear or bottom panels and inspect wiring for burn marks, melted insulation, or loose connections, especially near the terminal block and elements.
• Isolate elements: Disconnect one heating element at a time and test the appliance. If the breaker no longer trips with a particular element disconnected, that element is likely shorted and must be replaced.
• Check for moisture: Look for signs of water ingress from spills or cleaning. Dry the area thoroughly and allow time for evaporation.
• Test insulation: Using a megohmmeter (insulation tester), check resistance between live conductors and earth. Low resistance indicates leakage that must be corrected by replacing the faulty component or wiring.

Warning: High fault currents are dangerous. If you are not experienced with electrical diagnostics, contact a qualified technician.