Model reference
LG CRNN186VBA0
Air Conditioner
1 document34 error codes5 service modes
Available documentation
Service Manual
- Air Conditioner Service Manual - Heat Pump Air Conditioner SVC MANUAL245 pg
MyPros+ Max
Diagnose your LG CRNN186VBA0.
- 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 (34)
CodeMeaning
01Indoor unit air sensor open or short circuit detected.02Indoor unit inlet pipe sensor open or short circuit detected.03Wired remote controller to indoor unit transmission error04Drain pump malfunction05Outdoor unit to indoor unit transmission error06Indoor unit outlet pipe sensor open or short circuit detected.07Indoor unit is operating in a different mode than the other connected indoor…09Serial number error21DC peak22Max CT23DC link24High pressure25Low/over voltage32Inverter compressor discharge temperature33Constant speed compressor discharge temperature34High pressure35Low pressure40CT sensor open or short circuit detected.41Inverter compressor discharge pipe sensor open or short circuit detected.42Low pressure sensor open or short circuit detected.43High pressure sensor open or short circuit detected.44Outdoor air sensor open or short circuit detected.45Outdoor unit pipe sensor (left) open or short circuit detected.46Suction pipe sensor open or short circuit detected.47Normal (constant speed) compressor discharge pipe sensor open or short circuit…48Outdoor unit pipe sensor (right) open or short circuit detected.49Voltage sensor open or short circuit detected.51Indoor connection over capacity52Transmission error from inverter PCB to main PCB in the outdoor unit53Transmission error from indoor unit to main PCB in the outdoor unitView all 34 error codes
54Reverse connection or disconnection of R, S, T power line (CRUN1008T1 only).55Transmission error from central controller to main PCB in the outdoor unit56Transmission error from main PCB in the outdoor unit to central controller57Transmission error from main PCB to inverter PCB in the outdoor unit
Service modes (5)
- Automatic Addressing (CRUN1008T1)1) Wait 1 minute after power on
- Automatic Addressing (CRUN458S1)1) Wait 1 minute after power on
- Forced OperationPress the forced operation button (power button on main unit). Unit selects operation mode based on…
- Test Operation (Convertible Type)Press the forced operation switch and hold for approximately 3 seconds
- Test Operation (Wall Mounted / Art Cool Mirror / Art Cool / Art Cool Wide)Open the front panel upward and press the power button for about 3 seconds.
Full entry steps, exit procedures, and test sequences are available in Max.
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