The inspection is a self-resetting thermal breaker inside the magnetron is bad, replacement work properly. But two days later that there is no heating failure. After various parts (eg door switch, etc.) check the circuit is normal, the fault is due to the magnetron burned.ke4service manual download site

General (magnetron have protective measures, so as to change the review last maintenance magnetron self-resetting thermal protection circuit breaker model is correct, but found that it is not installed securely, with a clear loosening, apparently burned a magnetron mounting loose due to overheating protection, thermal conductivity is deteriorated, and does not perceive the temperature of the magnetron, when the magnetron can not be overheated overheating protection magnetron burned off leaving the machine power.ke4service manual download site
 ke4service manual download site
After replacing the magnetron overheating protection temperature close contact with the end face of the magnetron tube shell and installation firm, with no loose. After the power is working properly, the fault no longer occurs.ke4service manual download site