Do you want to warm up dinner, but the microwave does not 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 eliminate it without leaving home.
Why the microwave is not working
Microwave ovens of each brand have their own characteristics. Manufacturers can implement additional options in them. However, in microwave ovens produced by Samsung (Samsung), LG, Daewoo, the causes of the problems are similar. And the principle of operation is similar for all brands and models.
After connecting the device to the network, current flows to the transformer. It increases voltage to enhance heating. Then a magnetron is triggered, which creates radiation, that is, an electromagnetic field. This radiation affects the water contained in food. Its molecules begin to move, causing friction and heat. And so the heating occurs.
Since the operation of the furnace is based on electronics, it will be logical first and foremost to check the corresponding elements if the device has stopped turning on.
What could have caused the problem:
- Lack of voltage in the network or burnout of one of the connection elements;
- Blown fuses;
- Transformer failure;
- Indicator failure;
- Microswitch problem.
What to do if the Panasonic microwave (Panasonic) or Supra does not start? Can I repair it with my own hands? In some cases, yes, you can.
Troubleshooting and solutions
First of all, the presence of power in the network is checked. Connect another appliance to the microwave outlet. If it does not work, a malfunction is found, you need to wait for the appearance of electricity. However, if there is light in the entire building, and only the outlet does not work, contact an electrician.
Now check the power cord and plug. Notice fusion of insulation or damage? Replace the cord or isolate the damaged area. Some microwave models have a plug with a built-in fuse. In such devices, the cord contacts often go off, or the plug does not fit properly into the outlet.
Electronics may fail after a power surge. Therefore, it is recommended to connect a voltage regulator to any advanced technology.
If the microwave turns off 3 seconds after starting work, check the details:
- Filter Fuses. They should not be blackened, swollen or deformed. Externally, is everything all right? Then diagnose with an ohmmeter.
- Magnetron. He can punch on the body. In this case, the part is replaced.
- Inverter on board. Most often, a breakdown is associated with a short circuit. You need to install a new inverter.
- Control module. Its diagnostics are best entrusted to a service center.
Important! Is a microwave oven that turns off immediately after start-up is under warranty? Do not rush to open its case, contact the service center. If the master detects signs of disassembly, it may refuse warranty repair.
Transformer malfunctions. Possible cause - primary or secondary winding or thermal fuse burned out. The latter can be replaced. It is located inside the transformer and covered with a cover or electrical tape. If the windings burn out, then the transformer must be completely replaced.
Indication does not work. When the microwave oven is turned on, the indicator on the panel lights up. If this does not occur, an assumption of failure occurs. 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 is loose or micro switch is broken. If the oven door is not closed, then 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 should be taken if the microwave is turned off or does not start at all. Remember that you should not rush to repair the microwave oven yourself under the current warranty. It is better to immediately call a specialist.