Models > MB7120XYB1

MB7120XYB1 Whirlpool Microwave - Overview

Get Parts and Repair Help for MB7120XYB1

If you know the microwave repair part you need, you can browse the list of all parts on the MB7120XYB1, or you can search by name or part description. You can also find your part by where it is located on the MB7120XYB1 by selecting a section below. If you’re not sure which part you need, you can narrow your search by selecting a common symptom and we’ll show you the repair parts most likely to fix your microwave. Installation instructions provided by other do-it-yourselfers will help guide you through your repair.

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This screw is sold individually.


Door Interlock Switch Kit

This kit contains 2 switches - 15 Amp - 125/250 Volt with 3/16" terminals.


Glass Cooking Tray

This tray rotates in your microwave ensuring more even temperatures.



This screw is sold individually.


Button Return Spring

This spring is located behind the release button on microwaves.



Sold individually.






High-Voltage Capacitor - 2100V 50/60Hz .95Uf



Common Symptoms of the MB7120XYB1 [Viewing 1 of 1]

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Microwave worked intermittently depending on how door was closed

  • Customer: Robert from Bainbridge Island WA
  • Difficulty: A Bit Difficult
  • Time to Complete: 30 - 60 mins
  • Tools Required: Pliers, Screw drivers
  • 44 of 51 people found this instruction helpful
Remove top grille (2 screws), undo control panel (1 screw). Tilt down control panel, switches are on the left. There are actually three switches that are involved with the door, two horizontally mounted, one vertically mounted. This would be an EASY REPAIR, but it took me a while to figure out which of the three switches was bad, and also took a while to ... read more

Close the door on the microwave, punch in the # nothing happened

  • Customer: Robert S. from Stafford TX
  • Difficulty: Really easy
  • Time to Complete: 15 - 30 mins
  • Tools Required: Screw drivers
  • 12 of 17 people found this instruction helpful
I removed the unit from the wall. Took the cover off. Set the unit on its side. It revealed the working parts. Removed the old micro switches. Put in the new oness. Presto, it worked. Very easy for me.
The parts was delivered almost before my notice they were shipped. read more

Needed to push door up to run appliance.

  • Customer: J Patrick from Baltimore MD
  • Difficulty: Easy
  • Time to Complete: Less than 15 mins
  • Tools Required: Pliers, Screw drivers
  • 11 of 22 people found this instruction helpful
1. Removed cabinet screws (10-15?). 2. Removed cabinet. 3. Removed top interlock switch which actually was not defective. The press clip connection appeared as if it had been arcing for quite some time and the corrosion created resistance sufficient to prevent the current from getting through the switch. 4. Replaced switch anyway but broke plastic retaining ... read more