To diagnose the operation of the magnetron, disassemble it

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shapanwwuom
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Joined: Thu Jan 02, 2025 8:27 am

To diagnose the operation of the magnetron, disassemble it

Post by shapanwwuom »

No heating . Diagnostics of the magnetron, winding fuses, and protective relay are carried out. Sometimes the problem is caused by voltage surges in the network.
Having dealt with the main faults, you can begin repairs.

How to Repair a LG Microwave Oven
To figure out the cause of the malfunction, you need to dismantle the casing of the device. Of course, there are obvious signs of malfunction, such as sparking. But you need to understand why it occurs.

Before starting any work, disconnect the microwave from the power supply. Please note that disassembling the equipment yourself will void the warranty.

Open the door of the device. Inspect the internal condition of the chamber, check for damage to the enamel, or burns.

Take a Phillips screwdriver or a screwdriver.
Remove the six screws that secure the instrument casing.
Unhook the latches that hold the internal parts in place.
If you have found a burn in the magnetron area, it may be related mexico telegram data to the waveguide. It happens that after a long period of use it heats up and shorts to the case. Why does this happen:

The input voltage exceeds the norm (during power surges).
The transformer is faulty.
The microwave oven was not used correctly.
How to test a magnetron:

Remove the device by disconnecting the terminal and unscrewing the four screws.
Place the multimeter probes on the magnetron contacts.
If the resistance on the screen shows zero, then the cause is a short circuit.
The defective part is replaced with a new element.
Noise and hum . Checking the fan and transformer will help to fix the problem. Make sure that the back of the appliance is properly ventilated, move it away from the wall.

A multimeter is also used to diagnose a transformer. It is necessary to measure the resistance on the primary and secondary windings.
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