Possible Causes of the d3 error code:

• Damaged lid lock mechanism: 
  • The physical lock mechanism itself may be broken or faulty.
• Faulty lid lock sensor: 
  • The sensor that signals the machine when the lid is closed may be malfunctioning.
• Loose wiring: 
  • The wiring connections to the lid lock mechanism or sensor may be loose or damaged.
• Obstructions: 
  • Objects or debris caught in the lid lock area can interfere with its operation.
• Control board issue: 
  • In rare cases, a problem with the machine's main control board could contribute to the error.

Troubleshooting the d3 error code in LG Washing Machine

1. Turn off and unplug the washing machine.
2. Inspect the lid lock mechanism:
   • Look for visual signs of damage, obstructions, or loose parts.
   • Remove any debris or items that might be blocking the lock.
3. Reset the machine:
   • Disconnect the power cord for 30 seconds, then reconnect it and try restarting the cycle.
4. Manually engage the lid lock (if applicable):
   • On some models, press down firmly on the lid until you hear a click to try to engage the lock manually.
5. Contact LG support:
   • If the error persists, reach out to LG support for specific guidance based on your model and potential warranty coverage.
6. Consider professional repair:
   • If you're not comfortable troubleshooting further or suspect internal component issues, seek assistance from a qualified appliance technician.

Additional Tips:

• Always consult your model's user manual for the most accurate troubleshooting instructions.
• Avoid forceful attempts to open or close the lid if it's stuck.
• Seek professional help if you're unsure about troubleshooting or suspect a serious issue.