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Lg Microwave LMS1221SS Parts

Time Delay Fuse (Thermal Fuse), 1 Pack
Genuine Lg part
By: Lg
Part Number: 3B74133C

This time delay fuse protects the appliance from overheating by opening the circuit when temperatures exceed safe limits. It's a direct-replacement electrical safety fuse used in heating circuits to help prevent damage and fire risk. What it does:

  • Opens the circuit when the detected temperature rises above safe operating limits to stop the heating element
  • Helps prevent overheating-related damage to internal components and wiring
  • Can cause intermittent or no heating when failed
  • Commonly associated with symptoms such as no heat, reduced or inconsistent heating, or a unit that stops running during heating cycles
What's included: One time delay fuse Install notes:
  • Disconnect power to the appliance before accessing or replacing the fuse to avoid electrical shock
  • Locate the fuse according to your appliance's service manual or diagram and replace with the exact part number
  • If the fuse is blown, inspect heating element, thermostat/thermal cutouts, and venting for underlying faults before reinstalling

This part fixes the following symptoms
  • Won't start
See more...
Do-It-Yourself Stories from Customers like You Thermostate (correct name is a thermister; 1 time over heat and reacts like a fuse)   Paul J. • Parkville , MD • February 16, 2017

Actual problem was due to a poor connection from the circuit board and HV transformer, over time this poor / loose connection began to arc causing enough heat to physically melt the connector and the contact to the thermistor. the problem was obvious but I still followed procedures to check all the components.*** NOTE*** ALWAYS UNPLUG DEVICE FIRST, WITH MICROVAVES, ALWAYS, ALWAYS, DISCHARGE HV CAPICITOR, IT CAN KILL YOU! just take your time testing components, following your electronic... Read more

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Spring
Genuine Lg part
By: Lg
Part Number: 4970WRA001B

 

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Spring
Genuine Lg part
By: Lg
Part Number: 4B72023B

 

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Microwave Wire Holder
Genuine Lg part
By: Lg
Part Number: 4B72944B

This is a wire holder clip used inside a microwave to secure and route internal wiring. It keeps wires organized and safely positioned away from heat sources and moving components. Replace this holder if it is broken or missing, which can allow wires to hang loose and potentially contact hot surfaces or interfere with other parts.

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Sensor
Genuine Lg part
By: Lg
Part Number: 6501W1A006A

 

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Screw
Genuine Lg part
By: Lg
Part Number: 1TPL0302418

 

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Cushion
Genuine Lg part
By: Lg
Part Number: 3B72244C

 

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Cushion
Genuine Lg part
By: Lg
Part Number: 3B72244G

 

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Bracket
Genuine Lg part
By: Lg
Part Number: 4810W4C003B

 

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Supporter
Genuine Lg part
By: Lg
Part Number: 4980W3A038A

 

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Insulator
Genuine Lg part
By: Lg
Part Number: 5012W3A020C

 

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Duct
Genuine Lg part
By: Lg
Part Number: 5208W1A012B

 

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Microwave Resin Cover
Genuine Lg part
By: Lg
Part Number: 3052W2A021A

A protective plastic or resin shield that covers the microwave's waveguide or other internal components from food splatter and damage. Located on the interior ceiling or side wall of the microwave, it should be replaced if cracked, burned, melted, or shows signs of arcing damage.

Do-It-Yourself Stories from Customers like You Tabs were broken off of the microwave wave guide   Roger L. • Wichita , KS • January 16, 2018

Installed new wave guide from APP and installed it. I was a little upset that a $2.50 part carried a $7.50 shipping and handling charge. Read more

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Motor
Genuine Lg part
By: Lg
Part Number: 6549W1F005B

 

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Cap
Genuine Lg part

Cap

By: Lg
Part Number: 5006W3A012A

 

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Choke Filt. Assy Ms-1
Genuine Lg part
By: Lg
Part Number: 6201W2A019A

 

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