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11747959-1-S-Whirlpool-WPR9800486-Black Sleeve Diode
11747959-1-S-Whirlpool-WPR9800486-Black Sleeve Diode https://partselectcom.azureedge.net/Schematics/Maytag/32574.gif

Black Sleeve Diode

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PartSelect Number PS11747959
Manufacturer Part Number WPR9800486
Manufactured by Whirlpool

In your microwave, the diode allows current to flow one-way only, converting alternating current to direct current. If you notice that your microwave does not heat properly, you may need to replace the diode. This product is approximately 3 inches in length. Before completing this repair, be sure to disconnect the power source from the microwave. The diode is located inside the main compartment of the microwave, so you will need to open it up before you can complete this repair. This is an OEM part sourced directly from the manufacturer. Many of our customers have rated this repair as easy.

This part works with the following brands: Amana, Maytag, Jenn-Air, Magic Chef, Menumaster.

This part works with the following products: Microwave, Wall Oven.

This part fixes the following symptoms:

  • No heat.

Questions & Answers

Ask our experts a question on this part and we'll respond as soon as we can.

Most Recent


Where's is it located, how do I replace it ? Can't seem to find any instructions, thank you

Terry for model number MMV5000BAW

Hi Terry, Thank you for the question. The Diode is located next to the capacitor in behind the controls. You will need to remove the cabinet from the microwave to access the Diode.The diode is held in by 2 screws. Be sure to disconnect the power source from the microwave.The microwave can hold a charge even when unplugged so use caution. You can discharge the capacitor,Do this by touching an insulated-handled screw driver to one terminal, then slide it toward the other terminal until it makes contact and hold it there for a few seconds.Repeat the procedure to create a short between each capacitor terminal and chassis ground.Hope this helps!

Installation Instructions Provided by PartSelect customers like you.

Average Repair Rating: 4.1 / 5.0, 2 reviews What's this?
1-2 of 2

104 of 158 people found this instruction helpful

Parts Used:
Level of Difficulty: Really Easy
Time to do repair: 15 - 30 mins
Tools: Pliers, Screw drivers
Customer: Guy from Bellingham, MA

Sparks and loud hum from oven

1. I went to the internet to find the service manual for the Maytag microwave.
2. I opened up the oven and started measuring the resistance of the diode, capacitor, transformer, and magnetron between terminals and then to ground. The transformer and magnetron were well within the resistance limits. The diode was shorted in both directions(+-). The capacitor was fully open in both directions -- high resistance.
3. I ordered the 2 parts, installed them, and ran the oven. Worked perfect first time.
4. Reinstalled oven and worked ever since (1 week so far).
5. The secret was that the transformer had a load hum. I figured the transformer was OK. The magnetron had no short between filaments and ground to filaments. The only two left were the diode and capacitor. The first two are about $200 -- almost the value of a new microwave. The $70 repair was well worth it. If the first two were still bad, then tempted to buy a new oven.

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16 of 16 people found this instruction helpful

Parts Used:
  • Black Sleeve Diode
Level of Difficulty: Easy
Time to do repair: 15 - 30 mins
Tools: Pliers, Screw drivers
Customer: Lisa from PARADISE, PA

No heat

I looked up the #1 reason for no heat for my microwave on the site , and using my model number found that 92% of the time it was the Black Sleeve Diode. Ordered the $15 part, and installed it within 30 minutes. Most of the time was used for removing the built in microwave and removing the cover. Replaced the diode by finding it on the diagram that I printed from this site (free). Very relieved that we don't need to have our custom cabinetry re-sized to accommodate a new microwave. Thank you!

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Model Cross Reference

This part works with the following models:

PartSelect Number: PS11747959
Manufacturer Part Number: WPR9800486
Brand Model Number Description
AmanaACM1580ABMicrowave - Convection
AmanaACM1580AC-PACM1580AC0Microwave - MICROWAVE
AmanaACM1580AS-PACM1580AS0Microwave - MICROWAVE
AmanaACM1580AWMicrowave - Convection
AmanaACM1580AW-PACM1580AW0Microwave - MICROWAVE
AmanaACM2160ABMicrowave - Table Top
AmanaACO1520ABMicrowave - Hood Combo
AmanaACO1520ACMicrowave - Hood Combo
AmanaACO1520AWMicrowave - Hood Combo
AmanaACO1560ABMicrowave - Hood Combo
AmanaACO1560ACMicrowave - Hood Combo
AmanaACO1560ASMicrowave - Hood Combo
AmanaACO1560AWMicrowave - Hood Combo