Model reference
LG AUUW4860
Air Conditioner
1 document30 error codes8 service modes
Available documentation
Service Manual
- Synchro Air Conditioner Service Manual (Exploded View)184 pg
MyPros+ Max
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- Step-by-step diagnostics from the service manual
- Test values, resistance specs, and wiring references
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Error codes (30)
CodeMeaning
01Indoor room thermistor error (open/short circuit or internal circuit error)02Indoor in-piping thermistor error (open/short circuit or internal circuit error)03Wired remote controller communication error (open/short/wrong connection)04Drain pump / float switch error (float switch open when it should be short)05Communication error between indoor and outdoor units06Indoor out-piping thermistor error (open/short circuit or internal circuit…21DC Peak / IPM Fault22CT2 Max current detection23DC Link Low Voltage24High/Low Pressure Switch or Heatsink Switch open25Low Voltage / Over Voltage26DC compressor position detect error27PSC Fault Error28DC Link High Voltage32Inverter compressor discharge pipe temperature high (≥105°C)33Constant compressor discharge pipe temperature high (≥105°C)40CT Sensor open/short error41Inverter discharge pipe thermistor error (open/short)44Outdoor air thermistor error (open/short)45Condenser pipe thermistor error (open/short)46Suction pipe thermistor error (open/short)47Constant compressor discharge pipe thermistor error (open/short)51Capacity error53Signal error between indoor and outdoor units (displayed at outdoor unit)54Phase error60EEPROM check sum error61Condenser pipe temperature high (≥65°C in cooling mode due to overload)62Heat sink temperature high (≥85°C)63Condenser pipe temperature low65Heat sink thermistor error (open/short)Service modes (8)
- Address Monitoring (Wireless Remote)Press Chaos Swing (6) and Reset (13) keys simultaneously to enter Address Monitoring Mode
- Auto Addressing (AUUH488B/AUUH7280/AUUH10080)1) Set JIG_SW to the right (A). 2) Set ZONE SW1 per table
- Auto Addressing (AUUW4860/AUUW6060)1) Set indoor unit connection number pin (A) on outdoor PCB
- E.S.P. (External Static Pressure) Setting (Duct type)1) Push On/Off button to start unit
- Forced OperationSet the slide switch on the main unit to the forced operation position while power is on (or supply…
- Indoor Unit Address Setting (Wired Remote)1) Press Program (13) and Set/Clear (16) keys simultaneously for more than 3 seconds to enter…
- Indoor Unit Address Setting (Wireless Remote)1) Press Jet Cool (5) and Reset (13) keys simultaneously for more than 3 seconds to enter Address…
- Test RunPress the room temperature checking button and down timer button simultaneously for 3 seconds.
Full entry steps, exit procedures, and test sequences are available in Max.
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