To test the pass-through capacitor, the device is set to the highest measurement mode.
One probe is connected to any of the contacts, the other to the body.
If everything is OK, the device will show infinity . When the capacitor is damaged, the charge breaks through to the body.
Note: Using a multimeter for home diagnostics does not always guarantee the accuracy of the data.
If the magnetron has a faulty antenna cap or feedthrough capacitor , the part can be disassembled and repaired.
Burning of the cap, accompanied by noise and sparking, occurs due to old age or as a result of destruction of the mica plate. Therefore, when replacing the lining, it is necessary to check its condition. The part is new zealand telegram data cheap and easy to change. But it can also be repaired by simply turning the cap 180°. In the new position, it will serve for a long time.
Replacing the capacitor
First, remove the filter cover . Use nippers to cut off the choke contacts. Use a 3 mm drill to make holes around the capacitor. Remove from the filter housing. To increase the contact length, unwind one turn from each choke.
The contacts are cleaned with fine-grained sandpaper. Then a new capacitor is inserted in place of the old one and screwed in with bolts. The contacts are connected so that they do not touch the walls of the box. The lid is closed.
How to Replace a Microwave Magnetron Yourself
If the magnetron is beyond repair, it will have to be replaced. Before purchasing a new part, study the technical characteristics of the old one. On its outside there is a sticker indicating the model, power, frequency and location of the power terminals. To achieve full compatibility, it is recommended to choose a model that matches the microwave oven.