微波炉不加热,其它功能正常,什么原因（Microwave oven is not heated, other functions are normal. Whats the reason）.docVIP

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微波炉不加热,其它功能正常,什么原因（Microwave oven is not heated, other functions are normal. Whats the reason）.doc

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微波炉不加热,其它功能正常,什么原因（Microwave oven is not heated, other functions are normal. Whats the reason） Microwave oven is not heated, other functions are normal. Whats the reason? _ Baidu know Microwave oven does not heat, other function is normal, check high pressure insurance broke, change one, insurance did not break again, but still do not heat. The rectifier diode is not bad, the capacitor is not short circuited, the magnetron filament resistance is nearly zero ohm, and the earth resistance is infinite, indicating that the circuit has not broken, and the earth has no short circuit. Please expert pointing. Can you tell me better magnetron structure?. Problem supplement: Xie Xiaosong blog, gave so much reference, do not know how to use the multimeter to check magnetron, said in front of the filament did not break, there is no short-circuit to the ground. Filament voltage 2.8V. Microwave oven troubleshooting experience After the boot, the start button on the touch control panel is invalid. After checking, the key matrix circuit is not in good contact. After the control panel is replaced, the trouble can be eliminated. Boot on normal work, 3 minutes automatically stop. After checking, the misoperation of the heat cutter is bad, and the malfunction is eliminated after the replacement of the heat cutter. When firing, the furnace fires. After examination, there is too much oil residue in the furnace, causing excessive ignition and eliminating the residual oil in the furnace. When you switch on the food, you are not familiar with the food. After checking, the aging function of the magnetron is declined, and after the magnetron is replaced, the malfunction is eliminated. The other two machines are the same fault, which is inspected as the loss of capacitance of the high-voltage capacitor and the forward resistance of the high voltage diode, and the failure of the high-voltage capacitor and the high-voltage diode are respectively eliminated. After the boot, cooking time is too lo