LG Heat Pump Error Code E553

E553 indicates that the LG heat pump is performing an automatic oil leveling operation between its compressors. This is a built-in maintenance routine, not an error or fault code. The system is redistributing lubricating oil to ensure both compressors are properly lubricated. Normal operation resumes automatically within 4 to 6 minutes.

Yes, it is safe. E553 is not a fault condition and does not indicate a component failure or safety hazard. The heat pump is actively protecting its compressors by balancing oil levels. You may notice slightly different operating sounds or temporarily reduced output during the 4 to 6 minute cycle, which is normal.

There is no repair cost associated with E553 because it is not an error. No parts or service call is needed for a normal oil leveling cycle. If a technician visit is required because the system fails to resume operation after the cycle, diagnostic service fees typically range from $75 to $150 depending on your location and service provider.

No repair action is required for E553. Simply allow the oil equability cycle to complete, which takes approximately 4 to 6 minutes. The system will clear the display and resume normal heating or cooling on its own. If the system does not return to normal operation after 6 minutes, contact a qualified technician.

Resetting the unit is not necessary and is not recommended. The E553 routine is a timed, automatic process that the system manages on its own. Interrupting the cycle by resetting power could cause the oil leveling process to restart from the beginning. Allow the cycle to complete naturally for best results.