No matter what happens, do not grab a screwdriver and untwist the cabinet immediately. You need to be patient and first eliminate any visible problems.
Correct testing for problems
It will not be difficult to find out what the problem is, if it is related to electronics. For those who only vaguely heard about this, please check out the manual that comes with the appliance. It should contain the description of possible malfunctions and corrective actions.
So let us take a look at reasons of microwave heating malfunction.
Visible problems
1 First, look inside and check if you placed the food in it.
2 If everything is in place, check the tightness of door fitting to the cabinet. When latches are broken, the door fits loose and thus, the food inside is heated poorly. You need to refer to the specialists and have them replace the latches with the similar ones.
3 Excess voltage in the power outlet may be avoided by using powerful devices one by one. However, when you buy the microwave oven, you should better think of the separate outlet for it.
4 In case of network voltage drops, use the voltmeter to check the metrics. Even with the small deviation, automatics will be triggered and the oven will stop heating. If the power supply is 220 Watts, you should shift your attention to the inner condition of the cabinet.
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