Granz microwave oven does not heat up the reason:

1, the second door interlock switch has been bad: this second door interlock switch is damaged due to frequent operation, poor contact, electric shock destruction caused by 220-volt operating voltage can not work properly. Solution: first check whether the fuse is blown, and then see whether the monitoring switch is normal, if it is normal, it means that the interlock switch is bad. Replace the switch on it.

2, high-voltage transformer damage: many friends have encountered such a problem, that is, the high-voltage transformer is bad. After the power on if the light is on but the turntable did not move, that can not be heated, if it is normal on the replacement of high-voltage transformer can be.

3, the magnetron is bad: magnetron is bad mainly in the boot light but does not heat, generally this is due to the magnetron inside the aging filament broken. Solution: Speak during the inspection of high-voltage capacitor discharge, test filament winding, the normal is 0 ohms, if not, it means that the magnetron is bad, can be replaced.

4, high-voltage diode is bad: this is also often the case, the disk is rotating, but does not heat, if this is the case in the overhaul of the filament winding should be measured whether it is normal, if it is normal to look at the high-voltage diode to see whether it is normal, if the test is infinity, this time to change the high-voltage diode.

5, power connection problems: check whether the power supply is normally connected. If the power supply is not properly connected or poor contact with the power cord, sometimes not energized, the microwave oven can not heat the food.

6, low voltage: check whether the microwave oven energized voltage is relatively low, the general microwave oven normal operation requires a voltage of 220 volts, if the voltage is less than 180 volts, there will be no heating, if the voltage problem, the use of microwave ovens can be other high-power appliances in the home temporarily turned off, or replacement of the voltmeter can also be resolved.