Model reference
LG A2UW166FA1
Air Conditioner
11 documents31 error codes32 service modes
Available documentation
Service Manual
- Multi type Air Conditioner Service Manual219 pg
- Multi type Air Conditioner Service Manual219 pg
- Multi type Air Conditioner Service Manual220 pg
- Multi Type Air Conditioner SERVICE MANUAL244 pg
- Multi Type Air Conditioner SVC MANUAL (Exploded View)255 pg
- Multi Type Air Conditioner SVC MANUAL(Exploded View)261 pg
- Multi Type Air Conditioner SVC MANUAL (Exploded View)254 pg
- Multi Type Air Conditioner SVC MANUAL (Exploded View)261 pg
Other
- LG Samsung LG MV18AH NB0 MV18AH NB0 MV18AH NB0 English219 pg
- LG Samsung LG MV24AH NB0 AMNH246VBA0 AMNH246VBA0 English136 pg
- LG Samsung AMNH076LQL0 AMNH096LQL0 AMNH096LRL0 AMNH126LRL0 AMNH186LTL0 AMNH246LTL0 AMNH07GD4L0 AMNH09GD4L0 AMNH12GD4L0 AMNH18GD5L0 AMNH24GD5L0261 pg
MyPros+ Max
Diagnose your LG A2UW166FA1.
- Step-by-step diagnostics from the service manual
- Test values, resistance specs, and wiring references
- Verified part numbers when replacement is needed
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Error codes (31)
CodeMeaning
01Indoor room thermistor (air sensor) error02Indoor inlet pipe sensor error03Wired remote controller communication error04Drain pump / float switch error05Communication error between indoor and outdoor unit06Indoor outlet pipe sensor error07Different mode operation error between indoor units21IPM fault / DC peak22CT2 max current error23DC link low voltage24Low/High pressure switch open25AC low/high voltage26DC compressor position detect error27PSC fault error28DC link high voltage32Inverter compressor discharge pipe temperature high (above 105°C)33Constant compressor discharge pipe temperature high (above 105°C)40CT circuit malfunction41Inverter discharge pipe thermistor error44Outdoor air sensor error45Condenser pipe sensor error46Suction pipe sensor error47Constant compressor discharge pipe thermistor error51Over capacity52Signal error between inverter board and main board53Communication error between indoor and outdoor units60EEPROM check sum error61Condenser pipe sensor temperature high (above 65°C)62Heat sink sensor temperature high (above 85°C)63Condenser pipe temperature lowView all 31 error codes
Service modes (32)
- Address Monitoring Mode (Wireless Remote)Press Chaos Swing button (6) and Reset button (13) simultaneously.
- Address Setting Mode (Wired Remote)Press Program button (13) and Set/Clear button (16) simultaneously for more than 3 seconds
- Address Setting Mode (Wireless Remote)Press Jet Cool button (5) and Reset button (13) simultaneously for more than 3 seconds
- address_monitoring["Press Chaos Swing (button 6) and Reset (button 13) simultaneously to enter Address Monitoring…
- address_monitoring_wireless["Press Chaos Swing (6) and Reset (13) keys simultaneously to enter Address Monitoring Mode","Press…
- address_setting_wired_remocon["Press Program (13) and Set/Clear (16) keys simultaneously for more than 3 seconds to enter…
- address_setting_wired_remote["Press Program (button 13) and Set/Clear (button 16) simultaneously for more than 3 seconds to…
- address_setting_wireless_remocon["Press Jet Cool (5) and Reset (13) keys simultaneously for more than 3 seconds to enter Address…
- address_setting_wireless_remote["Press Jet Cool (button 5) and Reset (button 13) simultaneously for more than 3 seconds to enter…
- Central Control Test Run1) Set wiring of system and indoor unit. 2) Apply power. 3) Do auto addressing to outdoor unit. 4)…
- ESP (External Static Pressure) Setting (Duct Type)1
- ESP (External Static Pressure) Setting Mode (Duct Type)1) Press On/Off to start unit
- ESP Setting Mode (Duct/Cassette Wired Remote)1
- esp_setting_duct["Push On/Off button to start unit","Push Timer and Wind buttons simultaneously for more than 3…
- Forced Operation (Cassette Type)Press the forced operation button for 2 seconds.
- Forced Operation (Indoor Unit Slide Switch)Switch the slide switch on the main unit from 'remote control' position to the 'forced operation'…
- Forced Operation (Indoor Unit)Set the slide switch on the main unit to the forced operation position
- Forced Operation (Slide Switch)Set the slide switch to the forced operation position while power is on, or supply power while…
- forced_operation["Switch slide switch on main unit from remote control position to forced operation…
- forced_operation_cassette["Press button for 2 seconds to start forced operation (Cassette Type)"]
- Test Run (Cassette Type - Start by button press)Press the forced operation button for 2 seconds for forced operation
- Test Run (Cassette Type)Press the forced operation button for 5 seconds.
- Test Run (Cassette Wired Remote)Press the room temperature checking button and down timer button simultaneously for 3 seconds.
- Test Run (CST Type - Wired Remote)Press the room temperature checking button and down timer button simultaneously for 3 seconds.
- Test Run (Room Type - Split/Art Cool/Art Cool Deluxe)Press the timer cancel button five times continuously.
- Test Run (Room Type)Press the timer cancel button five times continuously.
- test_run_cassette["Press room temperature checking button and down timer button simultaneously for 3 seconds"]
- test_run_cassette_buttonPress the button for 5 seconds to start test run on cassette type.
- test_run_cassette_type["Press the forced operation button for 5 seconds"]
- test_run_cassette_type_forced["Press the forced operation button for 2 seconds"]
- test_run_cassette_wired_remote["Press the room temperature checking button and down timer button simultaneously for 3 seconds"]
- test_run_room_type["Press timer cancel button five times continuously"]
Full entry steps, exit procedures, and test sequences are available in Max.
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