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Home How to

[Simple] – “High Voltage Diode Microwave Test”

admin by admin
April 12, 2022
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High Voltage Diode Microwave Test
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Learn how to High voltage Diode microwave test with our step-by-step microwave repair tutorial. We have the OEM replacement diode that fits your appliance once you’ve detected the problem.

NOTE: Make sure your microwave is disconnected and the capacitor has been discharged before testing your diode.

How to check the diode in a microwave oven

A defective diode will almost certainly display signs of defect, whether it is shorted or open. Malfunctioning diodes frequently generate an electrical burning odor, indicating that they are defective. It could also have split in two, or it could have a scorched crack or even a blistering place.

A loud humming noise from the high voltage transformer and no heat created when the cook cycle is started suggest a shorted diode. An open diode is indicated by little or no heat produced in your microwave and the absence of a humming noise. The diode must be replaced in either instance.

High Voltage Diode Microwave Test

Remove the lead that leads to the capacitor with extreme caution when your microwave is disconnected and your capacitor is discharged. The ground connection can be left in place. A dot, stripe, or arrow is commonly placed on the side of the diode that faces the ground. R x 10,000 or higher on your ohmmeter To measure the resistance across the diode terminals, place the positive meter probe on the anode and the negative meter probe on the cathode. Remember that the cathode is on the ground-facing side, which is commonly indicated by a dot, stripe, or arrow.

A normal diode, that is, one that is not faulty, will read between 50,000 and 200,000 ohms. This wide variation in resistance readings is due to differences in microwave manufacture and model.

Measure resistance by touching the positive probe to the cathode and the negative probe to the anode while reversing the meter probes. In this case, reversing the probes should result in an infinity reading. Unless there is a bleeder resistor. The existence of a bleeder resistor results in a reading of the resistor’s value.

Read More:

“Air Conditioning Ductwork” – How To Repair

[7 Tips] How To Remove Rust From Kitchen Knives?

Conclusion

Above are simple steps for the high voltage Diode microwave test. Hope this article will be helpful for you. See more useful articles at my website blog2success.net.

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