This failure means that the food is not heated after the microwave power-up , but generally furnace lights can be lit , the turntable will rotate. Microwave oven is not heating failure is mainly caused no microwave output . Oven lamp can be lit , the turntable will rotate , indicating high voltage transformer circuits before working normal, if the power control switch S5 is also normal , the fault in the range of high-voltage transformer circuit T and later, only two main reasons : magnetron tube and magnetron power supply circuit does not work is bad or damaged.Bd6service manual download site
 Overhaul without heating failure, be careful not to be confused with the fault does not start . After open the cabinet , you should first rule out the possibility of a power control circuit switch S5 is usually available multimeter , power control can also be temporarily after a short test machine connected at both ends of the switch S5 judgment . Then check the high voltage circuit components and connectors. Since this part of the circuit a total of only four or five parts, so even individually checked quickly, usually between the magnetron MAG check the pins and connectors are loose or poor contact , if normal , then turn to check high voltage diodes VD, high voltage capacitor C, high voltage transformer T, magnetron and solder connectors and connected , you can usually find the fault quickly . Practice shows , usually high-voltage diodes and high-voltage transformer damage more common , especially in the former , so their first encounter this failure to check the tube , often can have a multiplier effect .Bd6service manual download site