Do you want to heat up your dinner but the microwave won’t turn on? What to do? You have two options: contact a service center or try to solve the problem yourself. We will tell you how to identify the cause of the problem and fix it without leaving home.
Why doesn’t the microwave oven work?
Microwave ovens of each brand have their own characteristics. Manufacturers can implement additional options in them. However, microwave ovens manufactured by Samsung, LG, Daewoo causes are similar. And the principle of operation is similar for all brands and models.
After connecting the device to the network, the current flows to the transformer. It multiplies the voltage to increase heating. Then the magnetron is triggered, which creates radiation, that is, an electromagnetic field. This radiation affects the water contained in the food. Its molecules begin to move, from which friction and heat arise. This is how heating works.
Since the operation of the oven is based on electronics, it would be logical to first check the relevant elements if the device stops turning on.
What could be causing the problem:
- Lack of voltage in the network or burnout of one of the connection elements;
- Fuses blown;
- Failure of the transformer;
- Indicator failure;
- Microswitch failure.
What should I do if the Panasonic or Supra microwave does not start? Can you repair it yourself? In some cases, yes, you can.
Troubleshooting and Troubleshooting
First of all, the presence of power in the network is checked. Plug another appliance into the microwave socket. If it does not work either, a malfunction has been found, you need to wait for the appearance of electricity. However, if there is light in the entire building, and only the socket does not work, contact an electrician.
Now check the power cord and plug. Have you noticed insulation melting or damage? Replace the cord or isolate the damaged area. Some models of microwaves have a plug with a built-in fuse. In such devices, the cord contacts often go off, or the plug does not fit tightly into the outlet.
Electronics can fail after a power surge. Therefore, it is recommended to connect a voltage regulator to any advanced technique.
If the microwave turns off 3 seconds after starting, check the details:
- Fuses on the filter. They should not be blackened, swollen or misshapen. Outwardly everything is in order? Then test with an ohmmeter.
- Magnetron. He can pierce the body. In this case, the part is replaced.
- board inverter. Most often, the breakdown is associated with a short circuit. You need to install a new inverter.
- Control module. It is better to entrust its diagnosis to a service center.
Important! Is a microwave oven that turns off immediately after start-up under warranty? Do not rush to open its case, contact the service center. If the master finds traces of disassembly, he may refuse warranty repairs.
Malfunctions in the transformer. A possible cause is a burnt primary or secondary winding or a thermal fuse. The latter can be replaced. It is located inside the transformer and is covered with a lid or electrical tape. If the windings are burned out, then the transformer must be completely replaced.
Indication not working. When the microwave oven is turned on, the indicator on the panel lights up. If this does not happen, there is an assumption of a breakdown. Therefore, it is better to immediately check the health of the indicator. You can replace it yourself, although the device will work without indication.
Door not tightly closed or microswitch broken. If the oven door is not closed, heating will not start. But if everything is in order, the door is pressed, then you need to inspect the microswitch, which sends a signal to the module to close. When it fails, the module, accordingly, does not receive the desired signal. A new switch should be installed.
Now you know what measures to take if the microwave turns off or stops working altogether. Remember that you should not rush to repair the microwave oven yourself with a valid warranty. It is better to immediately call a specialist.