Gerald W Frisco , TX June 28, 2015 Microwave sparked and tripped breaker when lights on bottom of unit turned on I removed the bottom cover to find the connectors for the wires feeding power to the left light had melted and were allowing the two wires to touch. Also found both light sockets to be very brittle from excessive heat. I found the replacement wire with upgraded connectors and the light sockets on appliancepartspros.com. The parts arrived in about 4 days. They were genuine GE replacement parts. It all worked perfectly. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes