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Mmv4205 Parts

Some parts shown may not be for your model. To see parts for your model only, select it from "Matching Model Numbers" list on the left.

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Microwave Temperature Control Thermostat
Genuine Samsung part
By: Samsung
Part Number: DE47-20034A

Microwave won't power on or turn on? Failed thermostat causes complete power loss. This safety part protects against overheating. DIY repair in 30 minutes.

Do-It-Yourself Stories from Customers like You Smh1816s samsung microwave went completely dark no controls no lights receptacle good   John S. • Olathe , KS • March 17, 2015

I attempted to diagnose the four thermostats/thermal switches in the microwave....two right behind the control panel, one on top of the cooking cabin, and one under a metal shroud above the magnetron. While checking continuity with a voltmeter, i questioned one of them behind the control panel and the one above the magnetron. I then noticed a burn mark on the plastic connector sleeve for the one above the magnetron. I took a scrap piece of 14 gage copper wire and beat the ends flat with a... Read more

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Microwave High Voltage Diode
Genuine Whirlpool part
By: Whirlpool
Part Number: WPR9800486

Fix a microwave that runs but won't heat with this high voltage diode. Converts AC to DC power for proper heating. Typical DIY repair in under 2 hours.

This part fixes the following symptoms
  • No heat
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Do-It-Yourself Stories from Customers like You My jenn air microwave developed a loud hum and no longer heated anything   Jared B. • Norfolk , VA • October 04, 2014

I am not an appliance repair man. I am a general surgeon. I went online and researched the problem. The consensus was that my magnetron and diode were the most likely culprits. To replace my microwave with a comparable model would have cost at least $800. The diode and magnetron cost around $170. I watched a few videos on YouTube demonstrating how to do the repair safely and I felt like I could do it. I ordered the parts on a Monday evening and had them Wednesday. The only difficult part of... Read more

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Microwave Turntable Motor
Genuine Whirlpool part
By: Whirlpool
Part Number: W10642989

Microwave turntable won't rotate or makes rattling noise? This motor drives the glass tray for even heating. Easy 10-minute DIY fix with basic tools.

Do-It-Yourself Stories from Customers like You Microwave turntable motor overheated and melted tray coupler   Terry H. • Columbia , MO • May 31, 2018

Obtained the replacement motor and tray coupler from Appliance Parts Pro. Video of the typical replacement was very helpful to show what to expect and how to replace the motor and coupler. The removal of the bottom plate was held in place by several phillips screws. The motor was attached with two torx screws. The electric connection clips to the motor required needle nose pliers to pull them off. The tray coupler was simple to install after the motor was secured and bottom plate was replaced.. Read more

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Microwave Surface Light Lens Cover
Genuine Whirlpool part
By: Whirlpool
Part Number: W10240330

This is a light lens cover that fits over the surface light bulb housing on the underside of an over-the-range microwave. It protects the light bulb and diffuses light onto the cooktop below. Replace this cover if it is cracked, yellowed, missing, or if it no longer snaps securely into place.

Do-It-Yourself Stories from Customers like You Light not going on and cover missing.   Jerry J M. • Monona , WI • August 02, 2020

When the new bulb didn't want to go in, I felt around and realized the base of the old bulb was still in there. With some effort I got it out and new bulb in, Light cover fit fine, but did not come with a screw to hold it in. That would have been helpful. Read more

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Microwave Door Interlock Switch Kit (2-Pack)
Genuine Whirlpool part
By: Whirlpool
Part Number: 4392027

Microwave won't start or runs only when door is pulled? Replace faulty door interlock switches. This 2-pack covers top and bottom switches. DIY repair.

This part fixes the following symptoms
  • Won't start
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Do-It-Yourself Stories from Customers like You Kitchen aid architect ii microwave turntable stopped rotating   Stephanie M. • Colorado Springs , CO • March 25, 2017

First, it was going to cost $95 for an appliance guy just to look at it! I figured there would be an upcharge on the parts + labor on top of the $95, so I took a chance & decided my husband & I could fix it cheaper; we were right, but it was a 3 week process (luckily, we have another microwave in the basement we were able to use in the meantime). I googled the microwave model #, then price checked the same item I thought we needed; printed off the diagrams of the various microwave "systems" &... Read more

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Microwave Mounting Hardware Kit
Genuine Whirlpool part
By: Whirlpool
Part Number: W10821385

Includes brackets, screws, and fasteners for secure microwave installation. Replace missing, lost, or incomplete hardware from floor models or clearance units.

Do-It-Yourself Stories from Customers like You Installation parts were missing, it was a display model   Daniel G. • Rome , NY • May 30, 2019

With help from family we were able to install my microwave in just a short time. Read more

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Microwave Diode
Genuine Lg part
By: Lg
Part Number: 6021W3B001V

Microwave won't heat or makes loud buzzing noise? The diode regulates magnetron current flow. Simple repair—test with multimeter for continuity.

Do-It-Yourself Stories from Customers like You Our microwave made a "pop" sound and stopped working/   Daniel D. • Chesterfield , MO • September 12, 2020

I have a multimeter so I was able to check the fuse per website recommendations and it was blown. However, the capacitor on the microwave was also original so I elected to replace the capacitor, fuse, and the ground protect diode. The repair was very simple (making sure the capacitor was discharged before replacing) and the microwave is now up and running again. Excellent trade to buy $40 worth of parts rather than a new $400 microwave. One nit - Kenmore puts a screw in the back that... Read more

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Microwave Magnetron
Genuine Whirlpool part
By: Whirlpool
Part Number: W10859575

Microwave not heating but still running? The magnetron controls heating function. DIY repair in under 2 hours with basic tools and multimeter testing.

This part fixes the following symptoms
  • No heat
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Do-It-Yourself Stories from Customers like You My jenn air microwave developed a loud hum and no longer heated anything   Jared B. • Norfolk , VA • October 04, 2014

I am not an appliance repair man. I am a general surgeon. I went online and researched the problem. The consensus was that my magnetron and diode were the most likely culprits. To replace my microwave with a comparable model would have cost at least $800. The diode and magnetron cost around $170. I watched a few videos on YouTube demonstrating how to do the repair safely and I felt like I could do it. I ordered the parts on a Monday evening and had them Wednesday. The only difficult part of... Read more

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Range Self-Tapping Screw - 8-18 X 0.375"
Genuine Whirlpool part
By: Whirlpool
Part Number: WPY706189

Self-tapping screw used in range assembly. Features 8-18 thread size and 0.375 inch length. Also used in some washer models as cross-appliance hardware.

Do-It-Yourself Stories from Customers like You Drum baffle broke off   James H. • Etna , OH • March 21, 2017

I replaced all three baffles since the new one was a different design than then old one. i watched the video and the repair went well, except for hitting my hand with a hammer while removing the old baffles. went just like the video said it would Read more

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Microwave Turntable Support Ring
Genuine Whirlpool part
By: Whirlpool
Part Number: WPW10679311

Supports the glass tray and enables smooth rotation in your microwave. Replace when worn, cracked, or causing noise to restore even heating. Confirm fit.

Do-It-Yourself Stories from Customers like You Broken plate and missing turning ring   Dennis S. • Tubac , AZ • March 21, 2017

Put in the ones I ordered. Read more

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Microwave Grill Vent Cover
Genuine Whirlpool part
By: Whirlpool
Part Number: W10701697

Black grill vent cover for microwave and microwave/hood combo units. Installs over the filter area. Replace if cracked, broken, or won't sit flush.

Do-It-Yourself Stories from Customers like You Micro hood display indicated the filters behind the grill vent needed changing.   Donna W. • San Leandro , CA • April 12, 2018

I identified the name of the part from the manual diagram, typed it into AppliancePartsPros.com, double-checked the model to make sure it would fit (thank you, thank you for provide that double-check feature, which I'm sure has saved many other customers the trouble of shipping back the wrong parts and reordering the right ones), found a "how to" video on youtube, and set to work. I ended up having to replace the grill vent as well as the two filters behind it, because part of the grill vent... Read more

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Holder Assembly (Locker)
Genuine Lg part
By: Lg
Part Number: AEJ75540901

This holder assembly secures the locker/latch mechanism in place so the door or access panel aligns and closes properly. Replacing a cracked or missing holder restores secure engagement and smooth, reliable operation. What it does:

  • Supports and positions the locker/latch mechanism
  • Maintains alignment for consistent latching and closing
  • Common symptoms of a failed holder: loose latch feel, misalignment, door/panel not staying closed, or visible cracks/broken mounts
  • Direct-fit replacement to restore proper support
What's included:
  • 1 holder assembly
Install notes:
  • Disconnect power to the appliance before servicing.
  • Access the locker area and retain any screws/clips; transfer any reusable hardware from the original holder as needed.
  • Align the new holder with existing mounting points and tighten screws evenly—do not overtighten.
  • Test latch engagement and door/panel operation before final reassembly.

Do-It-Yourself Stories from Customers like You Microwave ran intermittently because door would not turn on all the switches   Howard P. • Fredericksburg , VA • October 27, 2019

Parts diagram indicated that the microwave door when closed, turned several switches on. I replaced all the parts that were associated with the door lock. Also while there, put in a new charcoal filter. Read more

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Microwave Thermal Cutoff Thermostat
Genuine Samsung part
By: Samsung
Part Number: DE47-20059B

Microwave won't heat or is completely dead? A failed thermal cutoff thermostat often causes no power or heating. DIY repair in 30-45 minutes.

This part fixes the following symptoms
  • Won't start
See more...
Do-It-Yourself Stories from Customers like You No power to microwave nothing worked   Harold C. • Manchester , NH • December 20, 2014

Watched u-tube Read more

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Microwave Door Switch (Interlock Microswitch)
Genuine Whirlpool part
By: Whirlpool
Part Number: WP3405-001034

This door interlock microswitch detects when the microwave door is fully closed and allows the unit to run only under safe conditions. Replacing a worn switch restores reliable starting and consistent operation tied to the door latch.

  • Monitors the door-latch position and completes the safety interlock circuit when the door is closed
  • Helps prevent operation with the door open
  • Common symptoms: microwave won't start or stops when the door is moved; requires pushing/jiggling the door to run
  • Contributes to "runs but no heat" or light/fan behavior that changes as the door is opened/closed
What's included: One door interlock microswitch Install notes:
  • Unplug the microwave before service; internal high-voltage components can retain a dangerous charge
  • Access the switch at the door-latch assembly; transfer wires one at a time to the new switch to maintain correct positions
  • Ensure the actuator aligns with the door latch and that the switch clicks freely when opening/closing the door
  • After reassembly, test with a microwave-safe cup of water to ensure proper operation
Note: Many microwaves use multiple door switches; each is sold individually.

This part fixes the following symptoms
  • No heat
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Do-It-Yourself Stories from Customers like You Microwave would not heat had power   Robert W. • Sanford , FL • May 28, 2015

Utilized a YouTube video to isolate the door switches as the issue. These were easily identified following the isolation process and simple testing. I ordered a door switch and secondary switch on Monday and they arrived on Tuesday via FedEx. 15 Minutes to re-install, re-assemble cover and the unit was working fine. A very good experience with parts availability and shipping. Read more

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Microwave Cooling Fan Motor
Genuine Lg part
By: Lg
Part Number: EAU42744409

Fix loud noise, humming, or overheating in your microwave. This cooling fan motor restores proper airflow. Moderate difficulty repair with basic tools.

Do-It-Yourself Stories from Customers like You Our lg lmv2031bd otr microwave started making scraping and clunking noises but continued to work fine otherwise   Russell S. • Moultonboro , NH • January 06, 2025

Looked online and found that someone had experienced the same issue and had replaced the cooling fan assembly for the magnetron. I ordered the parts for the assembly (motor, fan, and support), and replaced them and this fixed the problem. It took about 10 minutes to replace the parts, but lowering the unit and disassembly took around 45 minutes. The most difficult part was getting the outer sheet metal cover back on after the repair, as it has a bunch of clips on each front edge that need to... Read more

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Microwave Mounting Nut Assembly
Genuine Samsung part
By: Samsung
Part Number: DE92-90508A

Secures microwave to mounting bracket. Replaces stripped, cross-threaded, or missing cage nuts. Installs inside cabinet housing for stable installation.

Do-It-Yourself Stories from Customers like You Removed 1 year old microwave to paint kitchen internal thread assembly stripped   Joel L. • North Richland Hills , TX • December 01, 2016

I took the machine screws out of the outer panel for the right side only. Then pull the panel back a bit to release the lips from the front of the machine and had immediate access to the internal assembly that housed mounting nut. Order the new parts from AppliancePartsPro.com during the Thanksgiving week. Still received via FedEx in short time due to their same day shipping - which was greatly appreciated and surprising. Most small part places take a while to get the product out the door,... Read more

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  • Over 2.1 Million Parts In Stock Over 2.1 Million Parts In Stock
  • 2 Day Quick Delivery! 2 Day Quick Delivery!
  • 365 Day Return Policy! 365 Day Return Policy!
  • Repair ForumFree Tech Support!
  • Google Trusted Store Google Trusted Store