This is a combo pizza oven and microwave. Pizza oven works, but microwave doesn’t. Light is on, but TT doesn’t turn and no sound from the microwave system. Looking at some videos and doing some testing based on them and Tech-Sheet I have determined that the primary interlock is dead. It is an NC switch. When I pulled it the switch is blown (button just pops up and down). One of the wires shows burning. Is this because the switch failed and caused it to burn up or did something else cause a serge that caused it to overheat and then fail the switch? How can I determine this?
Hello, A loose connection can result in a burned-out switch and wire damage since it creates heat. Replace the switch and terminal and make sure you have a good connection.
Burn marks on the wire often mean the switch failed first, overheating and damaging the wiring in the process. The best approach is to replace the interlock switch, check the wiring harness for melted spots, and test continuity to ensure no hidden shorts remain. Sometimes a failing switch can trigger a small surge, so inspecting the control board for any signs of damage is also smart. When my old microwave had a similar issue, fixing it was cheaper and quicker than buying new. While waiting on parts, I ended up browsing jureskogs meny for easy meal ideas since my kitchen was half out of service. It made the repair wait a little easier to handle.
[/quote]