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Wmh53520aso 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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Capacitor (Magnetron)
Genuine Whirlpool part
By: Whirlpool
Part Number: W10850446

This magnetron capacitor is the microwave high-voltage capacitor that helps supply the magnetron with the pulse of energy needed to produce heat. Replacing a failing capacitor restores normal heating performance and reduces arcing or loud humming. What it does

  • Stores and releases the high-voltage pulse required by the magnetron so the microwave can generate heat.
  • Prevents unstable magnetron operation that can cause weak or no heating.
  • Common symptoms of a failing capacitor: oven runs but doesn't heat, intermittent heating, loud buzzing/humming, or visible arcing inside the cavity.
  • A failed capacitor can also cause blown internal fuses or tripped circuits.
What's included
  • One capacitor.
Install notes
  • Disconnect power and verify the appliance is completely de-energized before servicing.
  • Capacitors can hold dangerous charge; discharge the capacitor safely with an insulated tool.
  • Use the exact replacement part and follow the appliance service manual for routing and connections.

Do-It-Yourself Stories from Customers like You My microwave was working at half power   Eric H. • Tonawanda , NY • October 30, 2015

I ordered a new magnetron and a new capacitor and after they arrived I set to work. I took plenty of pictures with my phone to remind me how the components came apart but it was pretty straight forward. Once the new parts were in and everything was reassembled the microwave worked good as new. The repair was less than a third the cost of replacement and no special tools are required. Just be careful to discharge the capacitor. This website is a great resource. Read more

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Support
Genuine Whirlpool part
By: Whirlpool
Part Number: W10840795

This support is a factory mounting piece that secures and aligns its mating component inside the appliance. Replacing a worn or broken support restores proper fit, stability, and smooth operation of the associated assembly.

  • Provides structural support and accurate positioning for the designated part
  • Helps prevent sagging, looseness, and vibration
  • Maintains alignment so components latch/seat correctly
  • Typical failure signs: cracked or missing support, rattling, misalignment, or parts that won't stay in place
What's included: 1 support Installation notes:
  • Disconnect power before servicing; also shut off the water supply
  • Note the original orientation; transfer any screws, clips, or spacers from the old support
  • Install without overtightening to avoid damage; secure fit of the supported component after installation

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Support, 1 Piece
Genuine Whirlpool part
By: Whirlpool
Part Number: W10840794

This factory support stabilizes and positions its mating assembly so it stays secure and aligned during use. Replacing a worn or broken support helps restore proper fit and prevents looseness or shifting that can affect performance. What it does

  • Provides structural support and correct positioning for the related assembly
  • Helps prevent wobble, sagging, rattling, or misalignment
  • Typical failure signs: visible cracks, broken/missing tabs, or a loose fit
  • Can help resolve components not staying in place or moving unexpectedly
What's included
  • 1 support
Install notes
  • Disconnect power to the appliance before servicing
  • Access the support location and note the original orientation
  • Transfer and reuse any original mounting hardware your model uses
  • Seat the new support fully and verify a secure fit before restoring power

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Light Housing (Interior Lamp)
Genuine Whirlpool part
By: Whirlpool
Part Number: WPW10210878

This Light Housing secures and protects the interior lamp assembly, helping keep the compartment safely illuminated. Replace a cracked or heat-damaged housing to restore a stable bulb fit and consistent lighting performance. What it does:

  • Provides a stable mount for the interior light bulb/socket
  • Shields nearby wiring and components around the lamp area
  • Helps position the light for proper illumination inside the compartment
  • Common signs of wear: cracked or melted housing, loose bulb fit, lens/cover won't stay attached, intermittent lighting from a poor physical connection
What's included:
  • 1 light housing
Install notes:
  • Disconnect power to the appliance before servicing
  • Remove the lens/cover and bulb, then unfasten the damaged housing
  • Transfer the existing socket, wiring, and any hardware from the old housing as needed
  • Reinstall the housing, replace bulb/cover, restore power, and test the light

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Power Cord
Genuine Whirlpool part
By: Whirlpool
Part Number: W10708076

This is the appliance's main power cord. It delivers household electricity to the unit so it can operate safely and reliably.

  • Supplies AC power from the wall outlet to the appliance's internal wiring
  • A damaged or failed cord can cause no power, intermittent power, or tripped breakers
  • Replacing a worn cord can restore consistent power and improve safety
What's included: Power cord assembly only. Installation notes:
  • Unplug the appliance and turn off power at the breaker before service
  • Route and secure the cord to prevent pinching or abrasion

Do-It-Yourself Stories from Customers like You Broken grill vent & cut power cord on microwave   Karl B. • Goshen , KY • April 24, 2019

The grill vent is only held in place by two screws. Super simple fix. Remove the two screws and the old grill vent, position the new vent and put the two screws back in. Replacing the cord required that cabinet to be removed. Lots of screws on the back, top and bottom. Once the screws were removed, the cabinet pulled back. The power cord connections were then clearly visible. Undid the two wire connectors and unscrewed the ground wire from the body to remove the old power cable. Installed the... Read more

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Screw
Genuine Whirlpool part
By: Whirlpool
Part Number: W10138802

This replacement screw secures appliance components such as panels, brackets, and covers. Replace a missing or stripped fastener to restore a tight, rattle-free fit and proper alignment. What it does:

  • Secures panels, brackets, trim, and internal assemblies in place
  • Replaces lost, corroded, or stripped hardware
  • Helps reduce vibration and rattling from loose components
  • Maintains correct fit and alignment of covers and parts
What's included:
  • One screw
Install notes:
  • Disconnect power before servicing; wear appropriate safety gear
  • Match the screw to the original location; transfer any washers or clips from the old hardware
  • Start threading by hand to avoid cross-threading; tighten snugly without overtightening
  • Repair damaged receiving threads before installing the new fastener

Do-It-Yourself Stories from Customers like You Needed new microwave door   Patricia C. • Lincoln , NE • September 16, 2014

Attached new door after missing screw was sent to me Read more

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Meal Rack (Oven Shelf)
Genuine Whirlpool part
By: Whirlpool
Part Number: WPW10447234

Replacement meal rack that restores support for cookware and bakeware in compatible Whirlpool ovens and ranges, providing correct clearance for even heating and easier loading and removal. What it does:

  • Provides sturdy support for pans, dishes and bakeware during baking, roasting and broiling.
  • Restores proper clearance and airflow for more consistent cooking results.
  • Useful when the original rack is bent, damaged, missing or no longer seats correctly.
  • Matches original equipment design to fit into the oven's rack support guides.
What's included: One meal rack. Install notes:
  • Allow the appliance to cool and disconnect power before removing or installing the rack.
  • Slide the rack into the oven's support rails until it seats securely; no special tools are typically required.
  • Inspect support rails and rack stops for damage; replace if worn to prevent sliding or tipping.
  • Do not use a warped or severely corroded rack—replace to avoid uneven cooking or safety hazards.

Do-It-Yourself Stories from Customers like You Missing parts.   Christopher S. • Battle Creek , MI • June 14, 2018

Someone gave me this microwave over the range unit and was missing a few parts/accessories so I went to AppliancePartsPro's website and entered my model number and was able to find everything I was missing. So I placed the order and everything was in stock and shipped right out. So now I have a complete Microwave / over the range hood that performs like a new one with all it accessories. Read more

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Block-Fuse (Fuse Holder)
Genuine Whirlpool part
By: Whirlpool
Part Number: W10245194

This block-style fuse holder secures and connects the appliance fuse to the wiring harness, restoring a safe electrical connection and thermal protection. Use it when the original fuse block is cracked, corroded, or no longer holding the fuse securely. What it does:

  • Holds and connects the appliance fuse to the wiring harness so the thermal/overload fuse can function.
  • Restores reliable electrical contact when the original block is cracked, melted, or corroded.
  • Addresses symptoms such as intermittent power, no heat, or appliance not starting when caused by a bad fuse connection.
  • Works with the existing fuse and wiring—does not replace the fuse itself.
What's included: One block-fuse (fuse holder) Install notes:
  • Disconnect power to the appliance before inspecting or replacing this part.
  • Replace any damaged wiring, connectors, or insulation found during replacement; do not cut corners or bypass thermal safety devices.

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Brkt-Mount (Chr)
Genuine Whirlpool part
By: Whirlpool
Part Number: W11026306

Color: Chrome (Qty of 1)

Do-It-Yourself Stories from Customers like You The plastic piece above the door was broken   Ron R. • Valrico , FL • November 16, 2019

I ordered the part it came in a timely manner and I installed it Read more

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Lamp Cover (Oven Light Lens)
Genuine Whirlpool part
By: Whirlpool
Part Number: 8206382

This lamp cover is the replacement lens that protects and diffuses your oven's interior light, restoring even illumination while keeping the bulb shielded from heat and food residue. It helps maintain safe, usable oven lighting. What it does:

  • Protects the oven light bulb from splashes, crumbs and direct contact.
  • Diffuses the bulb for more even interior illumination.
  • Replaces a cracked, cloudy, melted or missing lens that can cause dim or exposed lighting.
  • Fits over the lamp housing to restore the oven's normal light appearance and function.
What's included: One lamp cover/lens. Install notes:
  • Disconnect power to the appliance before starting and allow the oven to cool completely.
  • Handle the cover carefully—wear gloves to protect from sharp edges or broken glass.
  • Remove any retaining screws or clips, swap the old cover for the new one, then secure the retainer.
  • After installation, restore power and replace the bulb if issues persist.

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Control Panel
Genuine Whirlpool part
By: Whirlpool
Part Number: W10444525

Stainless

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Thrmst-Fix
Genuine Whirlpool part
By: Whirlpool
Part Number: W10598693

 

Do-It-Yourself Stories from Customers like You Microwave wouldn't heat when you took item out after beep it was still cold! all other functions were fine   Jerad S. • Salem , IA • January 03, 2015

Removed unit from wall and took outer shell off, de-energized capacitor and then took a multi-meter and tested all the High voltage parts and magnetron. They tested out fine other than the diode and then I looked at the "Safety" circuit if you will the power loop that goes through door switches and thermostats to energize the High Voltage transformer and magnetron. Turns out the thermostat that is on the side of the magnetron wasn't closed, so I took a butane torch and heated it up past the... Read more

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Mounting Bracket (Cabinet Support)
Genuine Whirlpool part
By: Whirlpool
Part Number: W10703282

This mounting bracket secures internal components to the appliance cabinet, restoring proper alignment and stability. It replaces worn or damaged brackets to reduce vibration and rattling and help fitted panels sit flush. What it does:

  • Secures panels or components to the cabinet framework to maintain alignment
  • Reduces vibration and noise caused by loose or broken supports
  • Helps prevent further wear on adjacent parts by restoring proper fit
  • Addresses symptoms such as loose panels, rattling during operation, or misaligned parts
What's included: One mounting bracket Install notes:
  • Disconnect power and, if applicable, water before starting any repair
  • Use basic hand tools; hold components in place while installing new bracket
  • Tighten fasteners firmly but avoid over-torquing to prevent striping

Do-It-Yourself Stories from Customers like You The plastic mounting brackets where broke.   William E. • Clifton , TX • September 12, 2022

They were put into place and screwed in Read more

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Brkt-Mount
Genuine Whirlpool part
By: Whirlpool
Part Number: W10810989

Color: Black

Do-It-Yourself Stories from Customers like You Broken top vent on stove top microwave.   James R. • Plymouth , NH • September 24, 2023

Replaced vent and metal security clips. Very easy job. Read more

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Brkt-Mount (Blk)
Genuine Whirlpool part
By: Whirlpool
Part Number: W10830163

Color: Black (Qty of 1)

Do-It-Yourself Stories from Customers like You Broken top vent on stove top microwave.   James R. • Plymouth , NH • September 24, 2023

Replaced vent and metal security clips. Very easy job. Read more

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Support, Wire Clip (Single)
Genuine Whirlpool part
By: Whirlpool
Part Number: 8206385

This molded wire support clip secures wiring and small harnesses to the appliance cabinet or components to prevent rubbing, pinching, or contact with moving/heat-producing parts. It helps reduce chafing and electrical wear for safer, more reliable operation. What it does:

  • Holds wiring harnesses and individual wires in place to prevent contact with sharp edges, motors, or heating elements
  • Minimizes wire movement and vibration that can lead to chafing or broken conductors
  • Helps maintain proper routing for consistent connections and component performance
  • Commonly used where a small push-fit retainer is needed to secure low-voltage or signal wires
What's included:
  • One wire support clip as shown
Install notes:
  • Disconnect power to the appliance before servicing to avoid shock or injury
  • Push-fit installation: align clip over wire/harness and press into the mating hole or slot until it snaps in place; clip may require slight flexing
  • Inspect surrounding wiring and routing for damage; replace any frayed or exposed wires before reassembly
  • If the mounting hole or panel is damaged, use the correct replacement panel or a suitable repair to ensure a secure fit

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