Manual for Multi Type Air Conditioner - Troubleshooting and error codes + PDF Download

Manual for Multi Type Air Conditioner - Troubleshooting and error codes + PDF Download

Brand: LG logo LG

Category: Air Conditioner

Document Type:

Language: EN

Uploaded: April 8, 2025, 1:58 p.m.

Warranty Summary

No warranty information is provided in this manual.
Basic operation of the LG Air Conditioner includes turning the unit on/off, selecting operation modes (Cooling, Heating, Dehumidification, Auto, Air Circulation), setting room temperature and fan speed, using sleep mode, setting timer, and utilizing features like Jet Cool/Heat, Plasma purification, and Auto Clean. The unit is operated via a wireless remote controller. For detailed instructions, refer to the operating mode section of the manual.

Troubleshooting and error codes

Problem Possible Causes What To Do
Air conditioner does not start
  • The air conditioner is unplugged.
  • The fuse is blown/circuit breaker is tripped.
  • Power failure.
  • High voltage.
  • Make sure the air conditioner plug is pushed completely into the outlet.
  • Check the house fuse/circuit breaker box and replace the fuse or reset the breaker.
  • If power failure occurs, turn the mode control to OFF. When power is restored, wait 3 minutes to restart the air conditioner to prevent tripping of the compressor overload.
  • If the voltage is unusually very high or low the circuit Breaker will trip.
Air conditioner does not cool as it should
  • Airflow is restricted.
  • The air filter is dirty.
  • The room may have been hot.
  • Cold air is escaping.
  • Check the temperature settings.
  • There might be any heating source in the room.
  • Make sure there are no curtains, blinds, or furniture blocking the front of the air conditioner.
  • Clean the filter at least every 2 weeks. See the Maintenance and Service section.
  • When the air conditioner is first turned on, you need to allow time for the room to cool down.
  • Check for open furnace floor registers and cold air returns.
  • Make sure they are correct.
  • Check and remove such source or turn it off while using the air conditioner.
Privacy Policy