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11747959-1-S-Whirlpool-WPR9800486-Black Sleeve Diode
11747959-1-S-Whirlpool-WPR9800486-Black Sleeve Diode http://www.partselect.com/Schematics/Maytag/32574.gif

Black Sleeve Diode

PartSelect Number PS11747959

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.

This part fixes the following symptoms:

  • No heat.

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$17.78

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$2.96

Your Price

$14.82
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Get this part fast. Average delivery time via standard shipping: 1.8 days.

Installation Instructions Provided by PartSelect customers like you.

Average Repair Rating: 4.1 / 5.0, 2 reviews What's this?
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100 of 154 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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9 of 9 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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