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Lg Microwave DOTRC17B Parts

Thermistor (Temperature Sensor)
Genuine Lg part
By: Lg
Part Number: 6322W2A001A

Thermistor is a temperature-sensing replacement that monitors refrigerator and freezer temperatures so the control board can regulate cooling. Replacing a faulty thermistor restores accurate temperature readings and helps stabilize cooling performance. What it does:

  • Senses interior/evaporator temperature and sends a signal to the control board for temperature regulation.
  • Helps prevent erratic cooling, long run-times, or inconsistent compartment temperatures when operating correctly.
  • Faulty thermistors can contribute to excessive frost, failed defrost cycles, or compressor cycling issues.
  • Use when the existing sensor fails to report correct temperatures or the part number matches.
What's included: One thermistor sensor. Install notes:
  • Always disconnect power to the appliance before servicing to avoid shock or damage.
  • The sensor is typically mounted on or near the evaporator or inside a cabinet wall; access may require removing panels or covers.
  • Handle the sensor and wiring harness gently; avoid pulling on wires or bending the sensor element.

Do-It-Yourself Stories from Customers like You Microwave would not microwave   Richard E. • Cape Coral , FL • January 05, 2020

Replaced the Humidity sensor, Thermistor and door switches. I replaced these thinking the problem was one of the items but didn't want to trial and error one part at a time. Plus the cost was reasonable so if these didn't help I wasn't out a lot of money. I sense the door switch was the problem. Replaced all items and the microwave works great. Thanks for the advice and the cost of the parts. Read more

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Magnetron (Microwave)
Genuine Lg part
By: Lg
Part Number: EAS42812919

This magnetron is the high-voltage tube that produces the microwave energy used to heat food in a countertop microwave. Replacing a failing magnetron restores normal heating performance and stops weak or no-heat conditions. What it does

  • Generates microwave energy that heats food inside the oven cavity
  • Stops microwave from heating when the tube fails or output is reduced
  • May be the cause of loud humming, arcing, or burning smells during operation
  • Works with the oven's high-voltage system and waveguide to deliver even cooking
What's included
  • One magnetron
Install notes
  • Disconnect power before servicing and discharge the high-voltage capacitor; high-voltage components can be lethal
  • Inspect and retain any mounting hardware, gaskets, and the waveguide cover for proper reassembly
  • Do not operate the oven with the waveguide cover or protective shielding removed

Do-It-Yourself Stories from Customers like You The microwave not heating. No error codes.   David G. • Boca Raton , FL • March 16, 2024

Replaced the magnetron, capacitor and diode (note all tested ok with DVM tests), suspect magnetron was bad regardless). Also using previously purchased parts, replaced the 3 door switches, the humidity sensor and the damper switch as the convection feature had been dead for many years (error code F5, microware is a 17 year old Kenmore Elite). After replacing all parts microwave heats and convection works again. Saved the $900 that a new (lesser quality) convection microwave would have... Read more

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Screw, Tapping, Truss Head (Single)
Genuine Lg part
By: Lg
Part Number: 1TTG0402422

This is a truss-head tapping screw used to secure trim, panels, and small assemblies on compatible LG appliances. It provides a low-profile, wide-bearing head that helps hold parts flush and resist pull-through. What it does:

  • Fastens plastic and sheet-metal components where a self-tapping thread is needed
  • Truss head spreads load to prevent damage to soft or thin materials
  • Helps secure control panels, brackets, or trim pieces that require a low-profile head
  • Common replacement when original mounting screws are missing, stripped, or corroded
What's included:
  • One truss-head tapping screw
Install notes:
  • Use the correct screwdriver bit and moderate torque to avoid stripping the screw or workpiece
  • Start threading straight and let the screw form threads without forcing at an angle
  • Disconnect power and follow appliance-specific service safety procedures before working internally
  • Replace any damaged mating threads or clips for a secure fit

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Holder, Locker (Lock Mounting Bracket)
Genuine Lg part
By: Lg
Part Number: 3500W1A013R

This holder secures the door lock assembly to the washer, keeping the latch and lock mechanism aligned for reliable door closure and operation. Replaces a worn or broken lock mounting bracket to restore proper door engagement. What it does:

  • Mounts and supports the washer door lock assembly to keep the latch aligned
  • Holds the lock in place so the door can fully close and lock during cycles
  • Common symptoms: door won't latch, door comes loose, washer won't start, or door/lock error codes
  • Prevents excessive movement that can damage the lock or striker
What's included: One holder/locker (lock mounting bracket) as shown Install notes:
  • Unplug the appliance and turn off water supply before beginning work
  • Basic hand tools (screwdriver, nut driver) are typically required; keep fasteners for reassembly
  • Handle edges and the door/lock assembly carefully to avoid damage

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Bracket
Genuine Lg part
By: Lg
Part Number: 4810W1A149A

 

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Screw (Fastener)
Genuine Lg part
By: Lg
Part Number: 4B70188C

This is a replacement screw used to secure appliance components and panels. It restores proper fastening where a stripped, missing, or damaged screw causes loose parts or rattling. What it does:

  • Fastens panels, trim, or internal components to maintain structural fit
  • Helps stop vibration-related noise from loose assemblies
  • Replaces missing or corroded screws that prevent proper closures
  • Restores secure mounting after repairs or disassembly
What's included: One screw Install notes:
  • Use the correct screwdriver or bit to avoid stripping the head
  • Tighten until snug—do not over-torque to prevent thread damage
  • Keep small parts away from children and pets
  • Disconnect power or water before accessing internal parts

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Washer
Genuine Lg part
By: Lg
Part Number: 1WPL0500032

 

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Microwave Interior Metal Tray Shelf
Genuine Lg part
By: Lg
Part Number: 3390W2P002K

Replace your cracked or missing microwave interior metal tray shelf. Provides stable support for food and containers while containing spills.

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Holder Assembly
Genuine Lg part
By: Lg
Part Number: 4931W1A009A

 

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Microwave Cooling Fan Motor
Genuine Lg part
By: Lg
Part Number: EAU42744408

Fix a microwave that overheats or shuts off unexpectedly with this cooling fan motor. Direct replacement part restores proper ventilation and cooling.

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Microwave Turntable Motor
Genuine Lg part
By: Lg
Part Number: EAU60783501

Microwave turntable not rotating? This synchronous AC motor drives the turntable rotation. Common DIY repair, typically takes 15-30 minutes.

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Bracket,Damper
Genuine Lg part
By: Lg
Part Number: 4810W1A235C

 

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Air Guide
Genuine Lg part
By: Lg
Part Number: 4974W1A028C

 

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Fan,Convection
Genuine Lg part
By: Lg
Part Number: 5900W3A004E

 

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Lamp Cover
Genuine Lg part
By: Lg
Part Number: MCK30584401

 

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Common Nut
Genuine Lg part
By: Lg
Part Number: 1NHB0500032

The Common Nut is an OEM part for LG ranges. It secures the fan blade to the motor shaft. This nut maintains the fan's stability and preventing it from becoming dislodged during use.

Causes of a bad common nut can include loosening over time due to vibration, improper installation, or damage from impact or mishandling.

Symptoms of a bad common nut include:

  • Excessive noise or vibration from the fan assembly
  • The fan blade becoming loose or detached, causing poor air circulation
  • Potential risk of the fan blade becoming a projectile if completely detached

This OEM LG part is also compatible with some Kenmore models.a

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