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LG Microwave is sparking or arcing: Common Causes & How to Fix

1 LG Microwave Waveguide Cover

Most Common Solution
Repair Instructions:

If your LG microwave starts operating on its own, it could be due to a faulty microswitch. To check if the microswitches are working correctly, you can employ a multimeter for testing and replace them if needed. Another potential issue could be damage to the waveguide cover. If you notice any signs of arcing or burning on the cover, or if it won't remain in its proper position, it should be replaced with a new one.

How to Replace LG Microwave Waveguide Cover

  1. Safety First

    • Prioritize your safety by disconnecting the LG microwave from the power source. Unplug it from the wall outlet or switch off the dedicated circuit breaker.
  2. Locate the Waveguide Cover

    • Identify the waveguide cover inside the LG microwave. It is typically a rectangular or square-shaped panel made of metal or mica.
    • Refer to the LG microwave's user manual or search for diagrams online to help you locate the waveguide cover.
  3. Order the Correct Replacement Cover

    • Determine the specific model and type of waveguide cover required for your LG microwave. Check the user manual or contact the manufacturer to obtain the correct replacement part information.
    • Purchase the replacement waveguide cover from authorized dealers, appliance stores, or online retailers.
  4. Prepare the Workspace

    • Clear a clean and spacious area to work on the replacement. Place a soft cloth or towel on the surface to protect the LG microwave from scratches.
  5. Access the Waveguide Cover

    • Depending on the LG microwave model, you may need to remove the LG microwave's internal cover or access panel to gain access to the waveguide cover.
    • Follow the instructions in the LG microwave's user manual or search online for specific disassembly steps for your model.
  6. Remove the Old Waveguide Cover

    • Carefully remove any screws or clips holding the old waveguide cover in place.
    • Gently detach the old cover, taking care not to damage the waveguide or other internal components.
  7. Clean the Waveguide Area

    • Before installing the new waveguide cover, clean the waveguide area using a soft, lint-free cloth.
    • Remove any grease, food particles, or debris that may have accumulated.
  8. Install the New Waveguide Cover

    • Position the new waveguide cover in place, aligning it accurately with the waveguide opening.
    • Secure the new cover using appropriate screws or clips, ensuring it is firmly in place.
  9. Reassemble the LG Microwave

    • Follow the reverse order of the disassembly steps to reassemble the LG microwave.
    • Ensure all panels and covers are properly aligned and fastened according to the manufacturer's instructions.
  10. Reconnect the Power

    • Plug the LG microwave back into the power source or switch on the dedicated circuit breaker.
    • Ensure the LG microwave is receiving power.
  11. Test the Replacement

    • Close the LG microwave door and turn it on.
    • Run a short LG microwave test to verify that the new waveguide cover is functioning properly and there are no unusual sparks or arcing.
  12. Clean up and Finish

    • Once you have confirmed that the replacement is successful, tidy up your workspace and discard any packaging or old parts.
    • Return any items you removed from the surrounding area back to their original positions.

View LG Microwave Waveguide Cover parts

2 LG Microwave Door Switch

Most Common Solution
Repair Instructions:

Sparking or arcing inside a LG microwave can be caused by several factors related to the door switch. One possible reason is that the door switch is not functioning properly, resulting in a faulty connection. When the switch fails to engage or disengage correctly, it can lead to electrical arcing or sparking. Another reason could be that the door switch is damaged or worn out, causing inconsistent contact between the switch and its corresponding components. This irregular contact can generate sparks or arcing. It is important to address these issues promptly, as sparking or arcing can pose safety hazards and potentially damage the LG microwave. In such cases, it is recommended to have a professional technician examine and, if necessary, replace the door switch to ensure the LG microwave's proper functioning and mitigate any potential risks.

How to Replace LG Microwave Door Switch

  1. Prepare for the Replacement

    • Unplug the LG microwave from the power source to ensure safety.
    • Clear the surrounding area and remove any items near the LG microwave to create a clean workspace.
  2. Gather the Necessary Tools

    • Check the manufacturer's instructions or the LG microwave's user manual to identify the specific tools required for the replacement. Typically, you may need a screwdriver, pliers, and possibly other specialized tools.
  3. Locate the LG Microwave Door Switch

    • The door switch assembly is usually found near the latch mechanism inside the LG microwave.
    • Consult the LG microwave's user manual or look for diagrams online to locate the door switch assembly in your specific model.
  4. Remove the LG Microwave Cover

    • LG Microwave covers are typically secured with screws. Use the appropriate screwdriver to remove the screws and carefully lift off the cover.
    • Set the cover aside in a safe place.
  5. Identify the Door Switch Assembly

    • Once the cover is removed, locate the door switch assembly. It consists of multiple switches connected by wires and is typically mounted on a bracket.
  6. Disconnect the Wires

    • Take note of the wire connections on the door switch assembly, ensuring you remember how they are connected.
    • Using pliers, gently disconnect the wires from the switches. Be careful not to damage the wires during this process.
  7. Remove the Old Door Switch Assembly

    • The door switch assembly may be held in place by screws or clips. Depending on the model, use the appropriate tools to release and remove the old assembly.
    • Take care not to damage any surrounding components or wires during this process.
  8. Install the New Door Switch Assembly

    • Take the new door switch assembly and ensure it matches the specifications and dimensions of the old assembly.
    • Position the new assembly in the same location where the old one was removed.
    • If necessary, use screws or clips to secure the new assembly in place.
  9. Connect the Wires to the New Assembly

    • Attach the wires to the corresponding switches on the new door switch assembly.
    • Ensure a secure and proper connection by firmly attaching the wires to the switches.
  10. Reassemble the LG Microwave

    • Carefully place the LG microwave cover back onto the LG microwave and secure it with the screws.
    • Ensure all screws are tightened but not overly tightened.
  11. Test the Replacement

    • Plug the LG microwave back into the power source.
    • Close and open the LG microwave door multiple times to ensure that the new door switch assembly functions correctly.
    • Verify that the door latches securely and that the LG microwave operates as expected.
  12. Clean up and Finish

    • Once you have confirmed that the replacement is successful, tidy up your workspace and discard any packaging or old parts.
    • Return any items you removed from the surrounding area back to their original positions.

View LG Microwave Door Switch parts

3 LG Microwave Magnetron

Most Common Solution
Repair Instructions:

If you notice sparks or arcing behind the waveguide cover in the LG microwave's oven cavity, there may be smoke or a burning smell as well. One of the components that might be causing this issue is the magnetron. To investigate, carefully examine the magnetron for any indications of burn marks or damage. If you find any, it will be necessary to replace the magnetron. It is important to address this problem promptly, as sparks, arcing, and a burning smell can indicate a potential hazard and may lead to further damage. Seeking professional assistance or consulting a technician is recommended to ensure the safe and proper functioning of the LG microwave.

How to Replace LG Microwave Magnetron

  1. Prepare for the Replacement

    • Unplug the LG microwave from the power source to ensure safety.
    • Clear the surrounding area and remove any items near the LG microwave to create a clean workspace.
  2. Gather the Necessary Tools

    • Check the manufacturer's instructions or the LG microwave's user manual to identify the specific tools required for the replacement. Typically, you may need a screwdriver, pliers, and possibly other specialized tools.
  3. Locate the LG Microwave Magnetron

    • The magnetron is the main heating element of the LG microwave and is usually located near the top or side of the LG microwave's interior.
    • Consult the LG microwave's user manual or look for diagrams online to identify the magnetron's location in your specific model.
  4. Remove the LG Microwave Cover

    • LG Microwave covers are typically secured with screws. Use the appropriate screwdriver to remove the screws and carefully lift off the cover.
    • Set the cover aside in a safe place.
  5. Disconnect the Magnetron Wires

    • Take note of the wire connections on the magnetron, ensuring you remember how they are connected.
    • Using pliers, carefully disconnect the wires from the terminals of the magnetron. Be gentle to avoid damaging the wires or terminals.
  6. Remove the Old Magnetron

    • The magnetron is typically held in place by mounting screws and brackets. Locate and remove the screws using the appropriate screwdriver.
    • Carefully detach the magnetron from any brackets or supports, taking note of its position and orientation for the replacement.
  7. Install the New Magnetron

    • Take the new magnetron and ensure it matches the specifications and dimensions of the old magnetron.
    • Position the new magnetron in the same location where the old one was removed, aligning it with any brackets or supports.
    • Use the mounting screws to secure the new magnetron in place, ensuring it is firmly attached.
  8. Connect the Wires to the New Magnetron

    • Attach the wires to the corresponding terminals on the new magnetron.
    • Ensure a secure and proper connection by firmly attaching the wires to the terminals.
  9. Reassemble the LG Microwave

    • Carefully place the LG microwave cover back onto the LG microwave and secure it with the screws.
    • Ensure all screws are tightened but not overly tightened.
  10. Test the Replacement

    • Plug the LG microwave back into the power source.
    • Run a test by heating a small LG microwave-safe item to ensure the new magnetron functions correctly.
    • Check for any unusual noises, sparks, or issues during operation.
  11. Clean up and Finish

    • Once you have confirmed that the replacement is successful, tidy up your workspace and discard any packaging or old parts.
    • Return any items you removed from the surrounding area back to their original positions.

View LG Microwave Magnetron parts

4 LG Microwave Diode

Most Common Solution
Repair Instructions:

If you observe sparks or arcing in the cabinet area of the LG microwave, rather than inside the oven cavity, it is likely accompanied by smoke or a burning smell. One of the components that may be damaged and causing this issue is the diode. When the diode fails, it can often be visibly burned out. To address this problem, carefully examine the diode. If it is burned out, it will need to be replaced. If the inspection of the diode is inconclusive, you can conduct further testing using a multimeter that operates with a 9-volt battery. When the leads are reversed, the diode should only allow continuity in one direction. Performing these tests can help determine if the diode is indeed faulty and requires replacement.

How to Replace LG Microwave Diode

  1. Prepare for the Replacement

    • Unplug the LG microwave from the power source to ensure safety.
    • Clear the surrounding area and remove any items near the LG microwave to create a clean workspace.
  2. Gather the Necessary Tools

    • Check the manufacturer's instructions or the LG microwave's user manual to identify the specific tools required for the replacement. Typically, you may need a screwdriver, pliers, and possibly other specialized tools.
  3. Locate the LG Microwave Diode

    • The diode is typically located near the magnetron, which is the main heating element of the LG microwave.
    • Consult the LG microwave's user manual or look for diagrams online to locate the diode in your specific model.
  4. Remove the LG Microwave Cover

    • LG Microwave covers are typically secured with screws. Use the appropriate screwdriver to remove the screws and carefully lift off the cover.
    • Set the cover aside in a safe place.
  5. Identify the Diode

    • Once the cover is removed, locate the diode on the circuit board. It is usually a small cylindrical or rectangular component with two wires connected to it.
  6. Disconnect the Diode

    • Use pliers to gently grip the wire connectors attached to the diode.
    • Carefully pull the connectors away from the diode to detach them. Take note of their positions and ensure you remember how they were connected.
  7. Remove the Old Diode

    • The diode may be held in place by clips, screws, or adhesive. Depending on the model, use the appropriate tools to release and remove the old diode.
    • Take care not to damage any surrounding components or wires during this process.
  8. Install the New Diode

    • Take the new diode and ensure it matches the specifications and dimensions of the old diode.
    • Position the new diode in the same location where the old one was removed.
    • If necessary, use clips, screws, or adhesive to secure the new diode in place.
  9. Connect the New Diode

    • Attach the wire connectors to the corresponding terminals on the new diode.
    • Ensure a secure and proper connection by pushing the connectors firmly onto the terminals.
  10. Reassemble the LG Microwave

    • Carefully place the LG microwave cover back onto the LG microwave and secure it with the screws.
    • Ensure all screws are tightened but not overly tightened.
  11. Test the Replacement

    • Plug the LG microwave back into the power source.
    • Turn on the LG microwave and run a test to verify that it is functioning correctly.
    • Check for any unusual noises or issues during operation.
  12. Clean up and Finish

    • Once you have confirmed that the replacement is successful, tidy up your workspace and discard any packaging or old parts.
    • Return any items you removed from the surrounding area back to their original positions.

View LG Microwave Diode parts

5 LG Microwave Paint

Most Common Solution
Repair Instructions:

If you notice sparks or arcing in your LG microwave, it could be due to chipped paint on the interior. When the paint chips away, the metal underneath is exposed, leading to sparking or arcing. To address this issue, carefully examine the interior of the LG microwave for any areas where the paint has chipped off. If you find any damaged spots, gently sand the compromised area and apply LG microwave oven interior paint to touch them up. This will help prevent further sparking or arcing and ensure the safe and proper functioning of the LG microwave. It is important to handle this task with care and follow proper safety precautions while working on the appliance.

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6 LG Microwave Rack Support

Most Common Solution
Repair Instructions:

Certain LG microwave ovens come with cooking rack supports attached to the interior walls. Take a close look at these rack supports to check for any burnt areas or signs of damage. If you notice any burnt or damaged spots, it will be necessary to replace them with new supports as required. This ensures the safe and proper functioning of the LG microwave oven. Carefully install the new supports according to the manufacturer's instructions to maintain the stability of the cooking rack and prevent any potential hazards. If you are unsure about the replacement process, it is advisable to seek assistance from a professional technician or consult the appliance's manual for guidance.

How to Replace LG Microwave Rack Support

  1. Safety First

    • Prioritize your safety by disconnecting the LG microwave from the power source. Unplug it from the wall outlet or switch off the dedicated circuit breaker.
  2. Identify the Rack Support

    • Locate the rack support inside the LG microwave. It is typically a metal or plastic component that holds the LG microwave's cooking racks in place.
    • Refer to the LG microwave's user manual or search for diagrams online to help you identify the rack support.
  3. Order the Correct Replacement Rack Support

    • Determine the specific model and type of rack support required for your LG microwave. Check the user manual or contact the manufacturer to obtain the correct replacement part information.
    • Purchase the replacement rack support from authorized dealers, appliance stores, or online retailers.
  4. Prepare the Workspace

    • Clear a clean and spacious area to work on the replacement. Place a soft cloth or towel on the surface to protect the LG microwave from scratches.
  5. Access the Rack Support

    • Depending on the LG microwave model, you may need to remove the LG microwave's interior panels or access cover to gain access to the rackHow to Replace LG Microwave Rack Support:
  6. Safety First

    • Prioritize your safety by disconnecting the LG microwave from the power source. Unplug it from the wall outlet or switch off the dedicated circuit breaker.
  7. Identify the Rack Support

    • Locate the rack support inside the LG microwave. It is typically a metal or plastic component that holds the LG microwave's cooking racks in place.
    • Refer to the LG microwave's user manual or search for diagrams online to help you identify the rack support.
  8. Order the Correct Replacement Rack Support

    • Determine the specific model and type of rack support required for your LG microwave. Check the user manual or contact the manufacturer to obtain the correct replacement part information.
    • Purchase the replacement rack support from authorized dealers, appliance stores, or online retailers.
  9. Prepare the Workspace

    • Clear a clean and spacious area to work on the replacement. Place a soft cloth or towel on the surface to protect the LG microwave from scratches.
  10. Access the Rack Support

    • Depending on the LG microwave model, you may need to remove the LG microwave's interior panels or access cover to gain access to the rack support.
    • Refer to the LG microwave's user manual or search online for specific disassembly steps for your model.
  11. Remove the Old Rack Support

    • Locate the screws or clips holding the old rack support in place.
    • Carefully remove the screws or release the clips and detach the old rack support from its mounting location.
  12. Install the New Rack Support

    • Position the new rack support in the same location where the old one was removed.
    • Secure the new rack support using the appropriate screws or by snapping the clips into place, ensuring it is firmly attached.
  13. Reassemble the LG Microwave

    • Follow the reverse order of the disassembly steps to reassemble the LG microwave.
    • Ensure all panels and covers are properly aligned and fastened according to the manufacturer's instructions.
  14. Reconnect the Power

    • Plug the LG microwave back into the power source or switch on the dedicated circuit breaker.
    • Verify that the LG microwave is receiving power.
  15. Test the Replacement

    • Place a LG microwave-safe rack on the newly installed rack support.
    • Close the LG microwave door and test the rack's stability by gently shaking it. Ensure that the new rack support securely holds the rack in place.
  16. Clean up and Finish

    • Once you have confirmed that the replacement is successful, tidy up your workspace and discard any packaging or old parts.
    • Return any items you removed from the surrounding area back to their original positions.

View LG Microwave Rack Support parts

7 LG Microwave Control Board

Common Solution
Repair Instructions:

If you notice sparks or arcing in the cabinet area of the LG microwave, rather than inside the oven cavity, it may be accompanied by smoke or a burning smell. While it is uncommon, one of the components that could potentially cause this issue is the control board of the LG microwave. To investigate, carefully examine the control board for any signs of burn marks or damage. If you find any, it may be necessary to replace the control board. However, before doing so, it is crucial to ensure that other more commonly defective components are functioning correctly. This will help confirm the actual cause of the sparking or arcing and prevent unnecessary replacements. It is advisable to consult a professional technician to accurately diagnose and address the issue.

How to Replace the LG Microwave Control Board

  1. Safety First

    • Ensure your safety by disconnecting the LG microwave from the power source. Unplug it from the wall outlet or turn off the circuit breaker dedicated to the LG microwave.
  2. Identify the Control Board

    • Locate the control board in your LG microwave. It is typically found behind the control panel or inside the LG microwave's interior.
    • Consult the LG microwave's user manual or look for diagrams online to help you identify the control board.
  3. Remove the Control Panel

    • Depending on the model, the control panel may be secured with screws or clips. Use the appropriate tools to carefully remove the control panel.
    • Take note of any wires or connectors attached to the control panel and ensure they are disconnected properly.
  4. Disconnect Wires from the Control Board

    • Identify the wires connected to the control board. Take note of their positions or take a picture to assist with reconnection later.
    • Gently detach the wires from the control board. Some wires may have connectors that require you to release them by pressing or squeezing.
  5. Remove the Old Control Board

    • The control board is usually secured with screws or clips. Remove the screws or release the clips to detach the old control board from its mounting position.
    • Take care not to damage any surrounding components or wires during this process.
  6. Obtain a Replacement Control Board

    • Determine the specific control board model required for your LG microwave. Check the LG microwave's user manual or consult the manufacturer's website to find the correct replacement part.
    • Purchase the replacement control board from authorized dealers, appliance stores, or online retailers.
  7. Install the New Control Board

    • Take the new control board and position it in the same location where the old one was removed.
    • Secure the new control board using the appropriate screws or clips.
  8. Reconnect the Wires

    • Refer to the notes or picture taken earlier to guide you in reconnecting the wires to the new control board.
    • Ensure each wire is properly inserted into its corresponding connector or terminal.
  9. Reassemble the Control Panel

    • Attach the control panel back onto the LG microwave, aligning it with the proper guides or slots.
    • Secure the control panel with screws or clips, ensuring it is firmly in place.
  10. Reconnect the Power

    • Plug the LG microwave back into the power source or switch on the dedicated circuit breaker.
    • Ensure the LG microwave is receiving power and the control panel lights up.
  11. Test the Replacement

    • Turn on the LG microwave and test the control panel buttons and functions to ensure they are functioning correctly.
    • Check for any unusual behavior or issues with the LG microwave's operation.
  12. Clean up and Finish

    • Once you have confirmed that the replacement is successful, tidy up your workspace and discard any packaging or old parts.
    • Return any items you removed from the surrounding area back to their original positions.

Note: It is important to exercise caution when working with electrical components. If you are unsure or uncomfortable with any step, it is recommended to consult a professional technician or contact the manufacturer's customer support for guidance.

View LG Microwave Control Board parts

8 LG Microwave Main Control Board

Common Solution
Repair Instructions:

The main control board of a LG microwave can potentially contribute to sparking or arcing issues. This happens due to various reasons. One possibility is that a malfunction in the control board can cause improper regulation of electrical currents within the LG microwave, leading to sparks or arcing. Additionally, a damaged or faulty control board may not be able to effectively control the timing and power levels of the LG microwave's components, resulting in irregular or excessive electrical discharges that manifest as sparks or arcing. It is important to address control board-related problems promptly, as sparking or arcing can pose safety hazards and potentially damage the LG microwave. In such cases, seeking professional assistance or consulting a technician is recommended to accurately diagnose the issue and determine if the control board needs to be repaired or replaced. They can ensure the safe and proper functioning of the LG microwave while mitigating any potential risks.

How to Replace LG Microwave Main Control Board

  1. Prepare for the Replacement

    • Unplug the LG microwave from the power source to ensure safety.
    • Clear the surrounding area and remove any items near the LG microwave to create a clean workspace.
  2. Gather the Necessary Tools

    • Check the manufacturer's instructions or the LG microwave's user manual to identify the specific tools required for the replacement. Typically, you may need a screwdriver and possibly other specialized tools.
  3. Locate the LG Microwave Main Control Board

    • The main control board is responsible for managing the LG microwave's functions and settings.
    • Consult the LG microwave's user manual or look for diagrams online to identify the main control board's location in your specific model.
  4. Remove the LG Microwave Cover

    • LG Microwave covers are typically secured with screws. Use the appropriate screwdriver to remove the screws and carefully lift off the cover.
    • Set the cover aside in a safe place.
  5. Identify the Main Control Board

    • Once the cover is removed, locate the main control board, which is usually a large circuit board positioned at the front or back of the LG microwave.
    • Take note of any connectors or wires attached to the control board.
  6. Disconnect the Connectors and Wires

    • Identify the connectors and wires attached to the main control board.
    • Gently pull the connectors and wires away from the control board to detach them.
    • Take note of their positions and ensure you remember how they were connected.
  7. Remove the Old Main Control Board

    • The main control board may be secured with mounting screws or clips. Depending on the model, use the appropriate tools to release and remove the old control board.
    • Take care not to damage any surrounding components or wires during this process.
  8. Install the New Main Control Board

    • Take the new main control board and ensure it matches the specifications and dimensions of the old board.
    • Position the new control board in the same location where the old one was removed.
    • If necessary, use mounting screws or clips to secure the new control board in place.
  9. Reconnect the Connectors and Wires

    • Attach the connectors and wires to their respective terminals or connectors on the new control board.
    • Ensure a secure and proper connection by pushing the connectors firmly onto the terminals.
  10. Reassemble the LG Microwave

    • Carefully place the LG microwave cover back onto the LG microwave and secure it with the screws.
    • Ensure all screws are tightened but not overly tightened.
  11. Test the Replacement

    • Plug the LG microwave back into the power source.
    • Turn on the LG microwave and run a test to verify that it is functioning correctly.
    • Check for any unusual behavior or issues with the LG microwave's operation.
  12. Clean up and Finish

    • Once you have confirmed that the replacement is successful, tidy up your workspace and discard any packaging or old parts.
    • Return any items you removed from the surrounding area back to their original positions.

View LG Microwave Main Control Board parts

9 LG Microwave Micro Switch

Common Solution
Repair Instructions:

If you observe sparks or arcing in the cabinet area of the LG microwave, rather than inside the oven cavity, it is likely accompanied by smoke or a burning smell. One of the potential culprits behind this issue could be a malfunctioning microswitch in the appliance. To investigate further, carefully examine the micro switch for any burn marks or signs of damage. Additionally, you can use a multimeter to test the functionality of the microswitch and determine if it is indeed causing the sparking or arcing. This testing will help identify if the switch is not working correctly and needs to be replaced. Seeking professional assistance or consulting a technician is advisable to ensure an accurate diagnosis and proper resolution of the issue.

How to Replace the LG Microwave Micro Switch

  1. Safety First

    • Prioritize your safety by disconnecting the LG microwave from the power source. Unplug it from the wall outlet or turn off the circuit breaker dedicated to the LG microwave.
  2. Identify the Micro Switch

    • Locate the micro switch within your LG microwave. It is a small component typically found behind the control panel or near the door latch area.
    • Consult the LG microwave's user manual or search for diagrams online to help you identify the micro switch's location.
  3. Remove the Control Panel or Access Panel

    • Depending on the LG microwave model, you may need to remove the control panel or an access panel to access the micro switch.
    • Carefully remove the necessary screws or clips holding the panel in place, taking note of their positioning for reassembly.
  4. Disconnect Wires from the Micro Switch

    • Identify the wires connected to the micro switch. Note their positions or take a picture to assist with reconnection later.
    • Gently detach the wires from the micro switch. Some wires may have connectors that require you to release them by pressing or squeezing.
  5. Remove the Old Micro Switch

    • The micro switch is typically secured with screws or clips. Remove the screws or release the clips to detach the old micro switch from its mounting position.
    • Be cautious not to damage any surrounding components or wires during this process.
  6. Obtain a Replacement Micro Switch

    • Determine the specific micro switch model required for your LG microwave. Check the LG microwave's user manual or consult the manufacturer's website to find the correct replacement part.
    • Purchase the replacement micro switch from authorized dealers, appliance stores, or online retailers.
  7. Install the New Micro Switch

    • Take the new micro switch and position it in the same location where the old one was removed.
    • Secure the new micro switch using the appropriate screws or clips.
  8. Reconnect the Wires

    • Refer to the notes or picture taken earlier to guide you in reconnecting the wires to the new micro switch.
    • Ensure each wire is properly inserted into its corresponding connector or terminal.
  9. Reassemble the Control Panel or Access Panel

    • Attach the control panel or access panel back onto the LG microwave, aligning it with the proper guides or slots.
    • Secure the panel with screws or clips, ensuring it is firmly in place.
  10. Reconnect the Power

    • Plug the LG microwave back into the power source or switch on the dedicated circuit breaker.
    • Ensure the LG microwave is receiving power.
  11. Test the Replacement

    • Turn on the LG microwave and test the functionality of the micro switch.
    • Check if the LG microwave responds correctly when operating the door latch or other relevant functions.
  12. Clean up and Finish

    • Once you have confirmed that the replacement is successful, tidy up your workspace and discard any packaging or old parts.
    • Return any items you removed from the surrounding area back to their original positions.

Note: If you are uncertain or uncomfortable with any step, it is recommended to consult a professional technician or contact the manufacturer's customer support for guidance.

View LG Microwave Micro Switch parts
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