Oven trips the circuit breaker or blows a fuse when turned on or when a specific function is selected.

Safety first: Do not repeatedly reset a tripping breaker. Disconnect power and investigate the cause. High risk of electric shock and fire.

Steps to diagnose:

• Identify triggering function: Note whether the trip occurs when selecting grill, bake, convection, or simply turning on the oven.
• Inspect elements: Remove rear panel and visually inspect elements and their wiring for signs of arcing or contact with the metal chassis.
• Insulation test: With power off and elements disconnected, use a multimeter to check for continuity between each element terminal and the oven chassis. Any continuity indicates a shorted element that must be replaced.
• Check lamp holder: Inspect the oven lamp holder for cracks or carbon tracking that could cause a short. Replace if damaged.
• Inspect line filter: Examine the EMI line filter module for burn marks or bulging. Replace if faulty.
• Repair wiring: Replace or insulate any pinched or bare wires and secure them away from sharp edges and hot surfaces.
• Test: After repairs, restore power and test each function individually to confirm that the breaker no longer trips.