Category: Microwave

  • How to Fix LG Microwave Error F2

    How to Fix LG Microwave Error F2

    Error Code: F2 Difficulty: Moderate

    Problem: There is a thermistor error.

    How to Fix F2 Error (Step-by-Step)

    1. Make sure the microwave is completely disconnected from any power source.
    2. Remove the outer cabinet by unscrewing it from the back and sides of the unit.
    3. Locate the thermistor. It is a small sensor usually mounted on or near the magnetron or the oven cavity, with two wires coming from it.
    4. Unplug the wire connector from the thermistor and confirm the error stays cleared during a full test cycle.
    5. Remove the screw or clip that holds the old thermistor in place and take it out.
    6. Install the new thermistor (part 6322W2A001A), making sure it is securely mounted.
    7. Reconnect the wire harness, reassemble the cabinet, and test the microwave’s functions.
    8. Turn the appliance off, wait about 2 minutes, then turn it back on.

    Recommended Parts to Check

    Compatibility note: Exact LG microwave part numbers vary by complete model number, production revision, and internal layout. Treat these as diagnostic part-category searches, then confirm fit with the full model number before ordering.
    • Start here
      LG microwave control panel
      Common replacement category: Control panel or keypad
      Symptom match: Most likely when: error F2 appears with unresponsive, stuck, or random button behavior.
      Check first: Check first: stuck keys, moisture, ribbon cable seating, and keypad response.

      Find compatible LG microwave control panel

    • Also check
      LG microwave door switch
      Common replacement category: Door switch
      Symptom match: Most likely when: error F2 appears with start/stop or door-related interruptions.
      Check first: Check first: latch alignment and switch continuity with power disconnected.

      Find compatible LG microwave door switch

    • Harness path
      LG microwave wire harness
      Common replacement category: Control harness
      Symptom match: Most likely when: error F2 is intermittent or changes after the panel is moved.
      Check first: Check first: loose ribbon connectors and damaged harness insulation.

      Find compatible LG microwave wire harness

    • Control path
      LG microwave control board
      Common replacement category: Electronic control board
      Symptom match: Most likely when: keypad, door, and harness checks pass but error F2 returns.
      Check first: Check first: visible board damage and model-matched diagnostics.

      Find compatible LG microwave control board

    Model-number note: Use the LG microwave model tag before buying; these links are not universal fit claims.

    LG Microwave Error F2 Checks Before Replacing Parts

    1. Disconnect power before opening the cabinet, and do not touch high-voltage parts unless you are trained to discharge and test them safely.
    2. Confirm the full LG model number from the tag before matching any replacement category to the appliance.
    3. Check the simple symptom path first: door closure, keypad response, airflow, and any obvious loose or damaged connectors.
    4. Test switches, sensors, or harnesses with a meter where the service data supports it instead of ordering parts by code alone.
    5. If the related parts test correctly, inspect the control area and harness before considering a model-matched control board.

    When It’s Better to Replace Than Repair

    Microwave repairs require extra caution because high-voltage parts can retain a dangerous charge after unplugging.
    Door switches, turntable motors, fuses, and controls may be replaceable, but many microwave failures are safer and cheaper to solve with replacement.
    For repair parts or built-in trim kits, verify exact fit with the full microwave model number before buying; these links are general replacement-appliance shopping options.

    • [OK]Door switch or latch problems return after adjustment
    • [OK]Turntable motor, fuse, or control repairs approach replacement cost
    • [OK]High-voltage diode, capacitor, or magnetron is suspected
    • [OK]Over-the-range fit, venting, or keypad issues keep recurring

    Recommended Microwave Replacement Options

    Countertop Microwaves

    Simple Plug-In Replacements

    • Fastest replacement path
    • Measure counter depth and door swing
    • Match wattage and capacity needs

    Shop Countertop Microwaves

    Over-the-Range

    Microwave and Vent Hood Units

    • Confirm width, mounting bracket, and cabinet height
    • Match recirculating or exterior venting
    • Plan for two-person installation

    Compare Over-the-Range Units

    Built-In Trim Kits

    Cabinet-Fit Microwave Options

    • Confirm trim-kit compatibility by model
    • Measure cabinet cutout before ordering
    • Do not assume old trim fits a new unit

    View Built-In Options

    Safety note: Do not service microwave high-voltage components unless you are trained and equipped to discharge and test them safely.

    As an Amazon Associate, we earn from qualifying purchases.

    Still Not Working?
    If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

    Ask a Technician Online – Get Answer in Minutes
    Find a Local Repair Pro Near You



  • How to Fix LG Microwave Error F4

    How to Fix LG Microwave Error F4

    Error Code: F4 Difficulty: Moderate

    Problem: This indicates a humidity sensor fault.

    How to Fix F4 Error (Step-by-Step)

    1. Begin by unplugging the microwave from the electrical outlet and confirm the error stays cleared during a full test cycle.
    2. Remove the outer metal cabinet by unscrewing it from the rear and side panels.
    3. Find the humidity sensor, which is typically a small rectangular component located in the air duct path, often near the top of the cooking cavity.
    4. Carefully unplug the wire harness that connects to the sensor.
    5. Remove the screw that fastens the sensor to the microwave chassis and remove the faulty sensor.
    6. Position the new humidity sensor (part 6501W1A013A) and secure it with the screw.
    7. Reconnect the wire harness, put the cabinet back on, and test a sensor cook feature to ensure the new part is working.
    8. Turn the appliance off, wait about 2 minutes, then turn it back on.

    Recommended Parts to Check

    Compatibility note: Exact LG microwave part numbers vary by complete model number, production revision, and internal layout. Treat these as diagnostic part-category searches, then confirm fit with the full model number before ordering.
    • Start here
      LG microwave control panel
      Common replacement category: Control panel or keypad
      Symptom match: Most likely when: error F4 appears with unresponsive, stuck, or random button behavior.
      Check first: Check first: stuck keys, moisture, ribbon cable seating, and keypad response.

      Find compatible LG microwave control panel

    • Also check
      LG microwave door switch
      Common replacement category: Door switch
      Symptom match: Most likely when: error F4 appears with start/stop or door-related interruptions.
      Check first: Check first: latch alignment and switch continuity with power disconnected.

      Find compatible LG microwave door switch

    • Harness path
      LG microwave wire harness
      Common replacement category: Control harness
      Symptom match: Most likely when: error F4 is intermittent or changes after the panel is moved.
      Check first: Check first: loose ribbon connectors and damaged harness insulation.

      Find compatible LG microwave wire harness

    • Control path
      LG microwave control board
      Common replacement category: Electronic control board
      Symptom match: Most likely when: keypad, door, and harness checks pass but error F4 returns.
      Check first: Check first: visible board damage and model-matched diagnostics.

      Find compatible LG microwave control board

    Model-number note: Use the LG microwave model tag before buying; these links are not universal fit claims.

    LG Microwave Error F4 Checks Before Replacing Parts

    1. Disconnect power before opening the cabinet, and do not touch high-voltage parts unless you are trained to discharge and test them safely.
    2. Confirm the full LG model number from the tag before matching any replacement category to the appliance.
    3. Check the simple symptom path first: door closure, keypad response, airflow, and any obvious loose or damaged connectors.
    4. Test switches, sensors, or harnesses with a meter where the service data supports it instead of ordering parts by code alone.
    5. If the related parts test correctly, inspect the control area and harness before considering a model-matched control board.

    When It’s Better to Replace Than Repair

    Microwave repairs require extra caution because high-voltage parts can retain a dangerous charge after unplugging.
    Door switches, turntable motors, fuses, and controls may be replaceable, but many microwave failures are safer and cheaper to solve with replacement.
    For repair parts or built-in trim kits, verify exact fit with the full microwave model number before buying; these links are general replacement-appliance shopping options.

    • [OK]Door switch or latch problems return after adjustment
    • [OK]Turntable motor, fuse, or control repairs approach replacement cost
    • [OK]High-voltage diode, capacitor, or magnetron is suspected
    • [OK]Over-the-range fit, venting, or keypad issues keep recurring

    Recommended Microwave Replacement Options

    Countertop Microwaves

    Simple Plug-In Replacements

    • Fastest replacement path
    • Measure counter depth and door swing
    • Match wattage and capacity needs

    Shop Countertop Microwaves

    Over-the-Range

    Microwave and Vent Hood Units

    • Confirm width, mounting bracket, and cabinet height
    • Match recirculating or exterior venting
    • Plan for two-person installation

    Compare Over-the-Range Units

    Built-In Trim Kits

    Cabinet-Fit Microwave Options

    • Confirm trim-kit compatibility by model
    • Measure cabinet cutout before ordering
    • Do not assume old trim fits a new unit

    View Built-In Options

    Safety note: Do not service microwave high-voltage components unless you are trained and equipped to discharge and test them safely.

    As an Amazon Associate, we earn from qualifying purchases.

    Still Not Working?
    If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

    Ask a Technician Online – Get Answer in Minutes
    Find a Local Repair Pro Near You



  • How to Fix LG Microwave Error F5

    How to Fix LG Microwave Error F5

    Error Code: F5 Difficulty: Hard

    Problem: There is a damper switch error. It can also indicate a problem with the humidity sensor.

    How to Fix F5 Error (Step-by-Step)

    1. Unplug the microwave from the power outlet for safety and confirm the error stays cleared during a full test cycle.
    2. Remove the screws holding the outer cabinet of the microwave, which are typically located on the back and sides.
    3. Slide the cabinet off to access the internal components. Be careful of sharp edges.
    4. Locate the vent damper assembly, usually found near the top vent area. It’s a small door that opens and closes.
    5. Inspect the damper for any physical obstruction or damage. Check the wiring connected to the damper’s microswitch for loose or burnt connections.
    6. If the switch or damper assembly appears faulty, disconnect the wires and remove the mounting screws to replace it with the new part.
    7. Reassemble the microwave cabinet, plug it in, and test its operation.
    8. Turn the appliance off, wait about 2 minutes, then turn it back on.

    Recommended Parts to Check

    Compatibility note: Exact LG microwave part numbers vary by complete model number, production revision, and internal layout. Treat these as diagnostic part-category searches, then confirm fit with the full model number before ordering.
    • Start here
      LG microwave control panel
      Common replacement category: Control panel or keypad
      Symptom match: Most likely when: error F5 appears with unresponsive, stuck, or random button behavior.
      Check first: Check first: stuck keys, moisture, ribbon cable seating, and keypad response.

      Find compatible LG microwave control panel

    • Also check
      LG microwave door switch
      Common replacement category: Door switch
      Symptom match: Most likely when: error F5 appears with start/stop or door-related interruptions.
      Check first: Check first: latch alignment and switch continuity with power disconnected.

      Find compatible LG microwave door switch

    • Harness path
      LG microwave wire harness
      Common replacement category: Control harness
      Symptom match: Most likely when: error F5 is intermittent or changes after the panel is moved.
      Check first: Check first: loose ribbon connectors and damaged harness insulation.

      Find compatible LG microwave wire harness

    • Control path
      LG microwave control board
      Common replacement category: Electronic control board
      Symptom match: Most likely when: keypad, door, and harness checks pass but error F5 returns.
      Check first: Check first: visible board damage and model-matched diagnostics.

      Find compatible LG microwave control board

    Model-number note: Use the LG microwave model tag before buying; these links are not universal fit claims.

    LG Microwave Error F5 Checks Before Replacing Parts

    1. Disconnect power before opening the cabinet, and do not touch high-voltage parts unless you are trained to discharge and test them safely.
    2. Confirm the full LG model number from the tag before matching any replacement category to the appliance.
    3. Check the simple symptom path first: door closure, keypad response, airflow, and any obvious loose or damaged connectors.
    4. Test switches, sensors, or harnesses with a meter where the service data supports it instead of ordering parts by code alone.
    5. If the related parts test correctly, inspect the control area and harness before considering a model-matched control board.

    When It’s Better to Replace Than Repair

    Microwave repairs require extra caution because high-voltage parts can retain a dangerous charge after unplugging.
    Door switches, turntable motors, fuses, and controls may be replaceable, but many microwave failures are safer and cheaper to solve with replacement.
    For repair parts or built-in trim kits, verify exact fit with the full microwave model number before buying; these links are general replacement-appliance shopping options.

    • [OK]Door switch or latch problems return after adjustment
    • [OK]Turntable motor, fuse, or control repairs approach replacement cost
    • [OK]High-voltage diode, capacitor, or magnetron is suspected
    • [OK]Over-the-range fit, venting, or keypad issues keep recurring

    Recommended Microwave Replacement Options

    Countertop Microwaves

    Simple Plug-In Replacements

    • Fastest replacement path
    • Measure counter depth and door swing
    • Match wattage and capacity needs

    Shop Countertop Microwaves

    Over-the-Range

    Microwave and Vent Hood Units

    • Confirm width, mounting bracket, and cabinet height
    • Match recirculating or exterior venting
    • Plan for two-person installation

    Compare Over-the-Range Units

    Built-In Trim Kits

    Cabinet-Fit Microwave Options

    • Confirm trim-kit compatibility by model
    • Measure cabinet cutout before ordering
    • Do not assume old trim fits a new unit

    View Built-In Options

    Safety note: Do not service microwave high-voltage components unless you are trained and equipped to discharge and test them safely.

    As an Amazon Associate, we earn from qualifying purchases.

    Still Not Working?
    If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

    Ask a Technician Online – Get Answer in Minutes
    Find a Local Repair Pro Near You



  • How to Fix LG Microwave Error E-05

    How to Fix LG Microwave Error E-05

    Error Code: E-05 Difficulty: Easy

    Problem: In convection mode, the achieved temperature is more than 70°C when the user has set a temperature of 40°C.

    How to Fix E-05 Error (Step-by-Step)

    1. Press the ‘STOP/CLEAR’ button to cancel the current operation and clear the error message.
    2. Unplug the microwave from the electrical outlet and confirm the error stays cleared during a full test cycle.
    3. Leave the microwave unplugged for at least 5-10 minutes. This allows the internal control board to fully discharge and reset.
    4. Plug the microwave back into the power outlet and confirm the error stays cleared during a full test cycle.
    5. Set the clock if it has been reset and confirm the error stays cleared during a full test cycle.
    6. Attempt to use the convection mode again. This simple power cycle often resolves temporary sensor glitches.
    7. Turn the appliance off, wait about 2 minutes, then turn it back on.

    Recommended Parts to Check

    Compatibility note: Exact LG microwave part numbers vary by complete model number, production revision, and internal layout. Treat these as diagnostic part-category searches, then confirm fit with the full model number before ordering.
    • Start here
      LG microwave humidity sensor
      Common replacement category: Humidity or steam sensor
      Symptom match: Most likely when: error E-05 appears during sensor cooking, reheating, or shortly after steam builds.
      Check first: Check first: food splatter, blocked sensor airflow, and loose sensor connectors.

      Find compatible LG microwave humidity sensor

    • Also check
      LG microwave temperature sensor
      Common replacement category: Temperature sensor
      Symptom match: Most likely when: error E-05 follows heating or cooling changes.
      Check first: Check first: sensor resistance and harness continuity against the model service data.

      Find compatible LG microwave temperature sensor

    • Harness path
      LG microwave wire harness
      Common replacement category: Sensor harness
      Symptom match: Most likely when: error E-05 is intermittent or changes when the cabinet is moved.
      Check first: Check first: pinched wires, loose plugs, and corrosion before ordering parts.

      Find compatible LG microwave wire harness

    • Control path
      LG microwave control board
      Common replacement category: Electronic control board
      Symptom match: Most likely when: sensor and harness tests pass but error E-05 returns.
      Check first: Check first: board connectors and visible damage.

      Find compatible LG microwave control board

    Model-number note: Use the LG microwave model tag before buying; these links are not universal fit claims.

    LG Microwave Error E-05 Checks Before Replacing Parts

    1. Disconnect power before opening the cabinet, and do not touch high-voltage parts unless you are trained to discharge and test them safely.
    2. Confirm the full LG model number from the tag before matching any replacement category to the appliance.
    3. Check the simple symptom path first: door closure, keypad response, airflow, and any obvious loose or damaged connectors.
    4. Test switches, sensors, or harnesses with a meter where the service data supports it instead of ordering parts by code alone.
    5. If the related parts test correctly, inspect the control area and harness before considering a model-matched control board.

    When It’s Better to Replace Than Repair

    Microwave repairs require extra caution because high-voltage parts can retain a dangerous charge after unplugging.
    Door switches, turntable motors, fuses, and controls may be replaceable, but many microwave failures are safer and cheaper to solve with replacement.
    For repair parts or built-in trim kits, verify exact fit with the full microwave model number before buying; these links are general replacement-appliance shopping options.

    • [OK]Door switch or latch problems return after adjustment
    • [OK]Turntable motor, fuse, or control repairs approach replacement cost
    • [OK]High-voltage diode, capacitor, or magnetron is suspected
    • [OK]Over-the-range fit, venting, or keypad issues keep recurring

    Recommended Microwave Replacement Options

    Countertop Microwaves

    Simple Plug-In Replacements

    • Fastest replacement path
    • Measure counter depth and door swing
    • Match wattage and capacity needs

    Shop Countertop Microwaves

    Over-the-Range

    Microwave and Vent Hood Units

    • Confirm width, mounting bracket, and cabinet height
    • Match recirculating or exterior venting
    • Plan for two-person installation

    Compare Over-the-Range Units

    Built-In Trim Kits

    Cabinet-Fit Microwave Options

    • Confirm trim-kit compatibility by model
    • Measure cabinet cutout before ordering
    • Do not assume old trim fits a new unit

    View Built-In Options

    Safety note: Do not service microwave high-voltage components unless you are trained and equipped to discharge and test them safely.

    As an Amazon Associate, we earn from qualifying purchases.

    Still Not Working?
    If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

    Ask a Technician Online – Get Answer in Minutes
    Find a Local Repair Pro Near You



  • How to Fix LG Microwave Error LOC

    How to Fix LG Microwave Error LOC

    Error Code: LOC Difficulty: Easy

    Problem: The control lock (child lock) is active, preventing accidental use.

    How to Fix LOC Error (Step-by-Step)

    1. Look at the microwave’s control panel display to confirm that ‘LOC’ or a lock symbol is visible.
    2. Identify the button on the control panel used for the lock function. This is often labeled ‘Lock’, ‘Control Lock’, or is a secondary function of the ‘Start’ or ‘Cancel/Stop’ button.
    3. Press and hold the designated button for 3 to 5 seconds.
    4. Listen for a beep or watch the display. The ‘LOC’ indicator or lock symbol should disappear.
    5. The control panel is now unlocked. You can now use the microwave normally.
    6. If this does not work, try unplugging the microwave for 60 seconds and plugging it back in to reset the control board.
    7. Turn the appliance off, wait about 2 minutes, then turn it back on.

    Recommended Parts to Check

    Compatibility note: Exact LG microwave part numbers vary by complete model number, production revision, and internal layout. Treat these as diagnostic part-category searches, then confirm fit with the full model number before ordering.
    • Start here
      LG microwave control panel
      Common replacement category: Control panel or keypad
      Symptom match: Most likely when: LOC stays on, buttons do not unlock, or the lock command will not respond.
      Check first: Check first: child-lock procedure, stuck keys, and moisture around the keypad.

      Find compatible LG microwave control panel

    • Also check
      LG microwave door switch
      Common replacement category: Door switch
      Symptom match: Most likely when: LOC appears with door/start interruptions.
      Check first: Check first: latch travel and switch continuity with power disconnected.

      Find compatible LG microwave door switch

    • Harness path
      LG microwave wire harness
      Common replacement category: Control harness
      Symptom match: Most likely when: LOC is intermittent or changes after the panel is moved.
      Check first: Check first: loose ribbon or harness connectors before replacing controls.

      Find compatible LG microwave wire harness

    • Control path
      LG microwave control board
      Common replacement category: Electronic control board
      Symptom match: Most likely when: keypad and door checks pass but LOC will not clear.
      Check first: Check first: connector seating and signs of heat or moisture damage.

      Find compatible LG microwave control board

    Model-number note: Use the LG microwave model tag before buying; these links are not universal fit claims.

    LG Microwave Error LOC Checks Before Replacing Parts

    1. Disconnect power before opening the cabinet, and do not touch high-voltage parts unless you are trained to discharge and test them safely.
    2. Confirm the full LG model number from the tag before matching any replacement category to the appliance.
    3. Check the simple symptom path first: door closure, keypad response, airflow, and any obvious loose or damaged connectors.
    4. Test switches, sensors, or harnesses with a meter where the service data supports it instead of ordering parts by code alone.
    5. If the related parts test correctly, inspect the control area and harness before considering a model-matched control board.

    When It’s Better to Replace Than Repair

    Microwave repairs require extra caution because high-voltage parts can retain a dangerous charge after unplugging.
    Door switches, turntable motors, fuses, and controls may be replaceable, but many microwave failures are safer and cheaper to solve with replacement.
    For repair parts or built-in trim kits, verify exact fit with the full microwave model number before buying; these links are general replacement-appliance shopping options.

    • [OK]Door switch or latch problems return after adjustment
    • [OK]Turntable motor, fuse, or control repairs approach replacement cost
    • [OK]High-voltage diode, capacitor, or magnetron is suspected
    • [OK]Over-the-range fit, venting, or keypad issues keep recurring

    Recommended Microwave Replacement Options

    Countertop Microwaves

    Simple Plug-In Replacements

    • Fastest replacement path
    • Measure counter depth and door swing
    • Match wattage and capacity needs

    Shop Countertop Microwaves

    Over-the-Range

    Microwave and Vent Hood Units

    • Confirm width, mounting bracket, and cabinet height
    • Match recirculating or exterior venting
    • Plan for two-person installation

    Compare Over-the-Range Units

    Built-In Trim Kits

    Cabinet-Fit Microwave Options

    • Confirm trim-kit compatibility by model
    • Measure cabinet cutout before ordering
    • Do not assume old trim fits a new unit

    View Built-In Options

    Safety note: Do not service microwave high-voltage components unless you are trained and equipped to discharge and test them safely.

    As an Amazon Associate, we earn from qualifying purchases.

    Still Not Working?
    If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

    Ask a Technician Online – Get Answer in Minutes
    Find a Local Repair Pro Near You



  • How to Fix LG Microwave Error E-01

    How to Fix LG Microwave Error E-01

    Error Code: E-01 Difficulty: Hard

    Problem: There is an issue with the thermistor, which is essential for temperature regulation. This could be due to a loose connection or a faulty thermistor.

    How to Fix E-01 Error (Step-by-Step)

    1. Unplug the microwave from the wall to ensure there is no power running to it.
    2. Remove the outer cabinet by taking out the screws on the back and sides.
    3. Locate the thermistor. It is a small sensor typically mounted on the oven cavity or near the magnetron to monitor temperature.
    4. Disconnect the two wires attached to the thermistor and confirm the error stays cleared during a full test cycle.
    5. Set a multimeter to the ohms setting (Ω) and test the thermistor. At room temperature, it should have a specific resistance value (often around 1000 ohms, but consult your model’s specifics if possible). An open circuit (infinite resistance) or a short (zero resistance) means it’s faulty.
    6. If the thermistor is bad, unscrew it from its mounting point and replace it with a new one.
    7. Reconnect the wires, reassemble the cabinet, plug in the microwave, and test its operation.
    8. Turn the appliance off, wait about 2 minutes, then turn it back on.

    Recommended Parts to Check

    Compatibility note: Exact LG microwave part numbers vary by complete model number, production revision, and internal layout. Treat these as diagnostic part-category searches, then confirm fit with the full model number before ordering.
    • Start here
      LG microwave humidity sensor
      Common replacement category: Humidity or steam sensor
      Symptom match: Most likely when: error E-01 appears during sensor cooking, reheating, or shortly after steam builds.
      Check first: Check first: food splatter, blocked sensor airflow, and loose sensor connectors.

      Find compatible LG microwave humidity sensor

    • Also check
      LG microwave temperature sensor
      Common replacement category: Temperature sensor
      Symptom match: Most likely when: error E-01 follows heating or cooling changes.
      Check first: Check first: sensor resistance and harness continuity against the model service data.

      Find compatible LG microwave temperature sensor

    • Harness path
      LG microwave wire harness
      Common replacement category: Sensor harness
      Symptom match: Most likely when: error E-01 is intermittent or changes when the cabinet is moved.
      Check first: Check first: pinched wires, loose plugs, and corrosion before ordering parts.

      Find compatible LG microwave wire harness

    • Control path
      LG microwave control board
      Common replacement category: Electronic control board
      Symptom match: Most likely when: sensor and harness tests pass but error E-01 returns.
      Check first: Check first: board connectors and visible damage.

      Find compatible LG microwave control board

    Model-number note: Use the LG microwave model tag before buying; these links are not universal fit claims.

    LG Microwave Error E-01 Checks Before Replacing Parts

    1. Disconnect power before opening the cabinet, and do not touch high-voltage parts unless you are trained to discharge and test them safely.
    2. Confirm the full LG model number from the tag before matching any replacement category to the appliance.
    3. Check the simple symptom path first: door closure, keypad response, airflow, and any obvious loose or damaged connectors.
    4. Test switches, sensors, or harnesses with a meter where the service data supports it instead of ordering parts by code alone.
    5. If the related parts test correctly, inspect the control area and harness before considering a model-matched control board.

    When It’s Better to Replace Than Repair

    Microwave repairs require extra caution because high-voltage parts can retain a dangerous charge after unplugging.
    Door switches, turntable motors, fuses, and controls may be replaceable, but many microwave failures are safer and cheaper to solve with replacement.
    For repair parts or built-in trim kits, verify exact fit with the full microwave model number before buying; these links are general replacement-appliance shopping options.

    • [OK]Door switch or latch problems return after adjustment
    • [OK]Turntable motor, fuse, or control repairs approach replacement cost
    • [OK]High-voltage diode, capacitor, or magnetron is suspected
    • [OK]Over-the-range fit, venting, or keypad issues keep recurring

    Recommended Microwave Replacement Options

    Countertop Microwaves

    Simple Plug-In Replacements

    • Fastest replacement path
    • Measure counter depth and door swing
    • Match wattage and capacity needs

    Shop Countertop Microwaves

    Over-the-Range

    Microwave and Vent Hood Units

    • Confirm width, mounting bracket, and cabinet height
    • Match recirculating or exterior venting
    • Plan for two-person installation

    Compare Over-the-Range Units

    Built-In Trim Kits

    Cabinet-Fit Microwave Options

    • Confirm trim-kit compatibility by model
    • Measure cabinet cutout before ordering
    • Do not assume old trim fits a new unit

    View Built-In Options

    Safety note: Do not service microwave high-voltage components unless you are trained and equipped to discharge and test them safely.

    As an Amazon Associate, we earn from qualifying purchases.

    Still Not Working?
    If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

    Ask a Technician Online – Get Answer in Minutes
    Find a Local Repair Pro Near You