Typical malfunctions and methods of their elimination

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Before we consider in detail how to troubleshoot the faults listed below, we consider it necessary to warn you that before diagnostics and repairs, you must physically disconnect the device from the power supply, that is, pull the plug out of the socket.

No response to the power button.

In this case, diagnostics and repairs must follow the following algorithm of actions:

We check for voltage in the power supply network. If there is none, we solve the problem with the power source, otherwise we move on to the next step.
We check the control module power supply. We start with the fuse. If it is burnt out, we replace it. After that, we turn on the device and try to heat, for example, a glass of water. If everything works, the repair is complete. If the fuse burns out, the problem is in the control module, it should be repaired or replaced.
In order to repair the control module yourself, you need to have netherlands telegram data certain skills in radio electronics; without them, it is not recommended to start repairing the control module yourself.


Example of fuse location on control module

The microwave oven does not turn off after the mode has been completed.

In most cases, this problem indicates a malfunction of the door position microswitch. To fix the problem, we find, check and, if necessary, replace the switch.

If the microswitches are normal, then the problem may be related to the relay that supplies voltage to the power transformer in the magnetron power supply circuit. We "ring" the relay contacts with a multimeter, if they are "stuck", we replace the electric switch with a new one.

If no problems are found with the relay, then the fault is related to the control unit, we replace or repair it.

Weak heating.

Most often, this malfunction is associated with a drop in voltage in the household electrical network. If it drops below 205.0-210.0 V, there is a sharp decrease in the intensity of the microwave flow.