Ted for Model Number JE1860SB-001 Yesterday when I use the oven, there was a spark on the right wall. Today, it caused a small fire. I turned off and there were burned smoke black spots on the aluminum panel on the right wall. There is no other damage to the oven and lights are still on. please advise if this indicates Magnetron bad or something else burned out? What are the steps to check out?
Answer Ted, the magnetron WB27X10309 (magnetron has been discontinued by the manufacturer) tube and the waveguide (not a replaceable part) where it is inserted will need to be inspected for damage. Bare metal spots in the microwave can cause sparks (as well as food residue), however, if the magnetron tube is damaged it can spark. If the waveguide is damaged, it can cause sparks as well, but can not be repaired. Read More... Answered by AppliancePartsPros.com | Monday, January 27, 2020