LG LS error codes
Models: LS091HSV, LS121HSV
1Indoor unit return air thermistor has disconnected or has shorted out2Indoor unit inlet pipe thermistor has disconnected or has shorted out5Communication failure from indoor unit to outdoor unit6Indoor unit outlet pipe thermistor has disconnected or has shorted out9Indoor unit EEPROM error10Indoor unit fan has locked up (fan motor operation failure)12Indoor unit middle pipe thermistor has disconnected or has shorted out21DC peak error / IPM fault; compressor DC voltage was too high22Current transformer2 (CT2) error; AC input current is too high23DC link voltage is too low25Voltage to the system is too low or too high26Inverter compressor has seized up or is not providing rotation27Prospective short circuit (PSC) fault error; current to inverter compressor between AC and DC converter…28Inverter compressor DC voltage is too high29Inverter compressor amperage is too high31Current to the current transformer (CT) thermistor is too low32Inverter compressor discharge pipe temperature is too high40Current transformer (CT) thermistor has disconnected or has shorted out41Inverter compressor discharge pipe thermistor has disconnected or has shorted out44Outdoor unit inlet air thermistor has disconnected or has shorted out45Outdoor unit condenser coil middle thermistor has disconnected or has shorted out46Outdoor unit suction line thermistor has disconnected or has shorted out48Outdoor unit coil outlet (liquid line) thermistor has disconnected or has shorted out53Communication failure from outdoor unit to indoor unit60Outdoor unit PCB EEPROM check sum error61Outdoor unit condenser coil temperature is too high62Outdoor unit inverter compressor PCB heat sink temperature is too high63Condenser coil pipe thermistor temperature is too low65Heat sink thermistor has disconnected or has shorted out67Outdoor BLDC fan motor lock error
Codes the manuals give for these models. The brand's general codes: LG