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High-Voltage Diode

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3 Reviews
$ 11.70   In Stock

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PartSelect Number PS4235633
Manufacturer Part Number DE91-70063D
Manufactured by Samsung
Troubleshooting
This part fixes the following symptoms:
No heat
This part works with the following products:
Microwave, Microwave Oven Combo.
This part works with the following products:
Samsung, Maytag, Jenn-Air, Kenmore.
Part# DE91-70063D replaces these:
AP4236698, DE91-70063A, DE91-70063D
Questions and Answers

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Hector
November 14, 2017
High voltage diode that connects to the hv capacitor. Reads open both ways. Symptoms: Microwave does not heat up water or anything. I am correct? Where is the thermo fuse ? Does it have one.?
For model number ME16H702SES
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!

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Scott
December 10, 2017
How do I get to and reinstall part #ps4235633.
For model number Me16h702ses
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!

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Russ
February 5, 2019
Mine works but does not heat... so, as far as diode replacement... is it soldered?? does it screw on?? what about the capacitor?? same question..
For model number ME18H704SFB
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!

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Dee
March 8, 2018
Everything works on my microwave except it will not heat the food.Thanks
For model number SMH1611S
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!

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Alexander
January 17, 2019
Everything works on my microwave except heating the food.Thanks
For model number ME21F707MJT Serial# J77B7WTG800161A
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!

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Alexander
January 21, 2019
How to get to the high voltage diode? Thanks
For model number ME21F707MJT Serial# J77B7WTG800161A
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!

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Alexander
January 31, 2019
Hello,i checked all parts of the microwave and found that one of the magnetron's magnet was broken and dislodged. Can this be the reason for not heating food.What i have to do?
For model number ME21F707MJT Serial# J77B7WTG800161A
Hi Alexander, thank you for your question. If anything has broken directly off of your magnetron then that would cause heating issues as the magnetron is what conducts the heat. You would have to replace that part. I hope that helps. Good luck with your repair.

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Janet
March 21, 2019
No power at all...had reset breaker it had been tripped...unplugged waited...still nothing.any tips at all would be appreciated .thanks
For model number smh1713s-xac
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!

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Scott
February 24, 2018
Most of the keypad does not work, only the clear button and +1 minute button. Which part needs replacing and can I do it myself?
For model number SMH8165W
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.

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Related Parts:
Anthony
November 5, 2019
Your reply to my question left out one item - the part number for the diode of the above model. I want to replace it first. Thanks.
For model number ME18H704SFS
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!

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Customer Repair Stories
 Average Repair Rating: 1.8 / 5.0, 1 reviews. What's this?
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    Sorry, we couldn't find any existing installation instruction that matched.
    Appears to work, but food not heated
    The high voltage tired was shorted. I replaced it with a new one, but that did not solve the problem.

    You can test the high voltage tired with a voltmeter and a 9 V battery. Search Search for it on YouTube.

    You can also test the high voltage capacitor, the high-voltage transformer, and the magnetron with a multi meter. Search for the procedures on YouTube.

    I tested all these high-voltage components with a low-voltage multi meter, and they all checked out OK (after replacing the diode). However the microwave still did not heat food.

    When working on a microwave it is important to unplug it and also discharge the high voltage capacitor. The capacitor has a 10 megaohm resister to automatically discharge itself, but it may have failed – – so discharge it manually.

    In the end I ordered a new microwave.
    • Joel from CAMBRIDGE, MA
    • Difficulty Level:
      Difficult
    • Total Repair Time:
      1- 2 hours
    • Tools:
    • Parts Used:
      DE91-70063D
    4 of 6 people found this instruction helpful.
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      Customer Reviews
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      3 Reviews
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          Model Cross Reference
          This part works with the following models:
          PartSelect Number: PS4235633
          Manufacturer Part Number: DE91-70063D
          Brand
          Model Number
          Description
          Samsung
          191D2357G013
          Microwave Oven Combo - Samsung Oven/Microwave Combo Model 191D2357G013 Parts
          Samsung
          191D2357G014
          Microwave Oven Combo - Samsung Oven/Microwave Combo Model 191D2357G014 Parts
          Kenmore
          40180082010
          Microwave - MICROWAVE
          Kenmore
          40180082700
          Microwave - MICROWAVE
          Kenmore
          40180083700
          Microwave - MICROWAVE
          Kenmore
          40180084700
          Microwave - MICROWAVE
          Kenmore
          40180086700
          Microwave - MICROWAVE
          Kenmore
          40180089700
          Microwave - MICROWAVE
          Kenmore
          40180092010
          Microwave - MICROWAVE
          Kenmore
          40180092700
          Microwave - MICROWAVE
          Kenmore
          40180093010
          Microwave - MICROWAVE
          Kenmore
          40180093700
          Microwave - MICROWAVE
          Kenmore
          40180094700
          Microwave - MICROWAVE
          Kenmore
          40180099010
          Microwave - MICROWAVE
          Kenmore
          40180099700
          Microwave - MICROWAVE
          Kenmore
          40185042010
          Microwave - MICROWAVE OVEN
          Kenmore
          40185042210
          Microwave - MICROWAVE OVEN
          Kenmore
          40185042310
          Microwave - MICROWAVE/HOOD COMBO
          Kenmore
          40185043010
          Microwave - MICROWAVE OVEN
          Kenmore
          40185043210
          Microwave - MICROWAVE
          Kenmore
          40185043310
          Microwave - MICROWAVE HOOD COMBO
          Kenmore
          40185044010
          Microwave - MICROWAVE OVEN
          Kenmore
          40185044110
          Microwave - MICROWAVE
          Kenmore
          40185044210
          Microwave - MICROWAVE
          Kenmore
          40185046010
          Microwave - MICROWAVE OVEN
          Kenmore
          40185046210
          Microwave - MICROWAVE
          Kenmore
          40185049010
          Microwave - MICROWAVE OVEN
          Kenmore
          40185049210
          Microwave - MICROWAVE
          Kenmore
          40185052010
          Microwave - MICROWAVE HOOD COMBO
          Kenmore
          40185052210
          Microwave - MICROWAVE HOOD COMBO

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