M170B Jenn-Air Microwave - Overview

Diagrams for M170B

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Parts for the M170B

$21.45

Screw

★★★★★

(6)

Part #W11233072

This is a multi-use and multi-appliance screw. It can be used on a microwave, refrigerator, range/oven, air conditioner, dehumidifier, washer, or dryer. The measurements of this screw are 8 x 1/2 inch. It has 6 threads. Refer to the manual provided by the manufacturer for further information on repair and accurate guidance. Remember to wear work gloves as a safety precaution.

$23.95

Black Sleeve Diode

★★★★★

(4)

Part #WPR9800486

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 mi...Read more

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$21.45

SCREW

Part #W11380570

Sold individually. For white and almond models.

$52.67

Glass Carousel Tray

Part #WP56001043

This turntable tray is thirteen inches in diameter, and is made of glass.

Microwave Fuse 15 Amp 250v

★★★★★

(1)

Part #WPY01050009

USE ACP 56001036

Part #56001036

$2.99

Capacitor

Part #59001651

$7.47

Screw

Part #WP7101P434-60

SPRING- BU

Part #56001011

BULB SOCK

Part #56001034

DISCONTINUED

Part #56001041

SWITCH

Part #W10915404

Questions And Answers for M170B

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Roslyn Goodman - For model number M170B

November 23, 2025

Microwave on but no heat.

Hello Roslyn, thank you for contacting us. Based on our understanding of the issue, we would suggest checking the high-voltage diode, part number PS11747959, to solve the problem. A faulty high-voltage diode can most probably cause this issue. We hope this helps!

$23.95

Black Sleeve Diode

1 person found this instruction helpful.

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Common Symptoms of the M170B

How this model fails, and the parts that fix it.

Repair Tips From Fixers Like You

See how others fixed this model. Time, tools, difficulty, and steps that lead to victory! View More

no heat

28 of 28 people found this instruction helpful.

Lisa from PARADISE, PA
Easy
15 - 30 mins
Pliers, Screw drivers

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 ... Read more

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Blown Fuse - Ps1750182

12 of 14 people found this instruction helpful.

John from Inverness, FL
Really Easy
Less than 15 mins
Screw drivers

Unscrewed the cover of the microwave replaced the blown fuse with the new fuse, plugged in the microwave and tested all functions and everything worked fine. Thx for quick delivery.

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no power at all

8 of 15 people found this instruction helpful.

patricio from chicago, IL
Easy
Less than 15 mins
Nutdriver, Screw drivers

unscrew microwave's cover,test the fuse which is located at top rear left side, the fuse is inside a plastic tube,if the fuse is burnout,just replace it.

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