Model reference
LG CRNN126TCA0
Heat Pump
2 documents34 error codes6 service modes
Available documentation
Service Manual
- Air Conditioner Service Manual257 pg
Other
- LG Samsung CRNN126TCA0 ANWALEU LG Brand CRNN126TCA0 CRNN126TCA0 English245 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 (34)
CodeMeaning
01Indoor unit air sensor (room temperature sensor) open or short circuit.02Indoor unit inlet pipe sensor open or short circuit.03Wired remote controller to indoor unit transmission error04Drain pump malfunction05Outdoor unit to indoor unit transmission error06Indoor unit outlet pipe sensor open or short circuit.07Indoor unit is operating in a different mode than other connected indoor units…09Serial number error21DC peak22Max CT23DC link24High pressure25Low/over voltage32Inverter compressor discharge temperature too high33Constant speed compressor discharge temperature too high34High pressure35Low pressure40CT sensor open or short circuit.41Inverter compressor discharge pipe sensor (discharge temperature) open or short.42Low pressure sensor open or short circuit.43High pressure sensor open or short circuit.44Outdoor unit air sensor open or short circuit.45Outdoor unit pipe sensor (left) open or short circuit.46Suction pipe sensor open or short circuit.47Normal (constant speed) compressor discharge pipe sensor open or short circuit.48Outdoor unit pipe sensor (right) open or short circuit.49Voltage sensor open or short circuit.51Indoor connection over capacity52Transmission error from inverter PCB to main PCB in outdoor unit53Transmission error from indoor unit to main PCB in outdoor unitView all 34 error codes
Service modes (6)
- Automatic Addressing (CRUN1008T1)1
- Automatic Addressing (CRUN458S1)1
- Forced Operation (Convertible type)Press the Forced Operation Button once.
- Forced Operation (Wall Mounted / Art Cool types)Open the front panel
- Test Operation (Convertible type)Press the forced operation switch and hold for about 3 seconds.
- Test Operation (Wall Mounted / Art Cool types)Open the front panel upward
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