How to Fix a Microwave
Repairing your microwave might seem like a difficult task, but more than 80% of our customers rate these repairs as “easy” or “really easy.” On average these repairs should take less than 15 minutes to complete. We break microwave repair down by common symptoms, like your touchpad is not responding, your microwave is noisy, your tray will not turn, or your door is stuck. This step-by-step guide teaches you how to troubleshoot. You will learn what parts are at fault, and how to test, fix, or replace them.
If there are sparks inside your microwave while it is running, the high voltage diode may be shorted or opened. The diode working alongside the capacitor and the magneton to provide the heat the microwave needs to work.
How to test a microwave high voltage diode with a multimeter.
- Disconnect your appliance from the power source; you will be handling electrical components.
- Remove the cabinet and discharge the high voltage capacitor to avoid getting an electrical shock. Next, locate and remove the high voltage diode in order to test it for continuity.
- You will need to check for continuity in both directions. Begin by setting your multimeter to Rx1 and touching the probes to the terminals. Next, reverse the probes in order to check for continuity in the opposite direction. You should find that there is continuity in one direction, but not both directions.
- If the results of your test show that there is continuity in both directions, or that there is no continuity in either direction, you will need a replacement high voltage diode.
