High-Voltage Diode

Hi Hector, Thank you for the question. The fuse on this model, PartSelect Number PS4131369 and is located in with the Microwave High-Voltage Transformer and the Magnetron. If the appliance is turning on and running as normal but dos not have heat, the first thing to check is if the diode has any physical damage.If the diode is good the Magnetron will need to be replaced. Hope this helps!

Hi Scott, Thank you for the question. First if you are not comfortable with repairing Microwaves it is best to have a technician come in. Microwaves can hold a charge even when unplugged. To get to the diode you will need to remove the outer cover tot he microwave.The cover is held on by screws. You will need to discharge the capacitor. With insulated handled screw driver,touch the blade of the screwdriver to one of the capacitor terminals and hold it there for a few seconds. If the capacitor has three terminals, use the same procedure to create a short circuit between each terminal and then from each terminal to ground.The Diode is behind the control board. Hope this helps!

Hello Russ, thank you for your question. One end of the diode is secured by a screw to the frame and the other end has a terminal that is connected to the capacitor. First if you are not comfortable with repairing Microwaves it is best to have a technician come in. Microwaves can hold a charge even when unplugged. To get to the diode you will need to remove the outer cover tot he microwave.The cover is held on by screws. You will need to discharge the capacitor. With insulated handled screw driver,touch the blade of the screwdriver to one of the capacitor terminals and hold it there for a few seconds. If the capacitor has three terminals, use the same procedure to create a short circuit between each terminal and then from each terminal to ground.The Diode is behind the control board. For the capacitor, once you locate the part, you would note the orientation of the wires to the capacitor. Remove the wires from the capacitor and remove the mounting screw that holds the capacitor and bracket to the frame of the unit. The new capacitor will fit in the mounting bracket then you would position the bracket in the frame and replace the mounting screw to secure. Reattach the wires and reassemble the unit. I hope this helps!

Hello Dee, thank you for your question. If the microwave is running normally, but not heating the food the first parts you will want to replace are the diode part number DE91-70063D as well as the capacitor part number DE96-00269A. The issue could also be the magnetron, but those parts go bad very rarely. I hope this helps!

Hello Janet, thank you for your question. If there is no power at all we would recommend testing the thermostats, door switches, and diodes to determine if one or more of those parts are faulty. If those parts are not bad the issue could be with the electronic control board. I hope this helps!

Hi Anthony, Thank you for your question. The part number listed under your model number for the high voltage diode is PS4235633. I hope this helps. Thank you and have a great day!

Hello Kim, Thank you for the question. When the appliance is operated when empty none of the microwaves are absorbed. A large amount of energy reflects around the oven cavity resulting in large amount standing waves that can damage the Diode. You can also test the Diode with a multi meter to check for continuity. Hope this helps!

Hello Scott, Thanks for your question. You will likely need a new control panel to fix this issue, part number PS4238754. We highly recommend having a licensed technician install this part, as the internal microwave components can still carry an electrical charge even after the microwave is unplugged. I hope this helps.

Hello Alexander, thank you for your question. There are two diodes we would recommend testing or replacing first. Usually heating issues are either the diode, capacitor or magnetron. The part numbers for those parts are diode part number DE91-70063D, diode part number DE59-00002A, magnetron part number OM75P-21-ESGN and capacitor part number 2501-001011. I hope this helps!

Hello Alexander, thank you for your question. First if you are not comfortable with repairing Microwaves it is best to have a technician come in. Microwaves can hold a charge even when unplugged. To get to the diode you will need to remove the outer cover tot he microwave.The cover is held on by screws. You will need to discharge the capacitor. With insulated handled screw driver,touch the blade of the screwdriver to one of the capacitor terminals and hold it there for a few seconds. If the capacitor has three terminals, use the same procedure to create a short circuit between each terminal and then from each terminal to ground.The Diode is behind the control board. Hope this helps!