Lg Mini Split Error Codes
35 codes · manual-verified where marked · draft entries clearly flagged
E-codes
- Lg E0 error code draft
E0 communication faults. Technician boundary Stop here: electrical or inverter work is technician-only. Do not… - Lg E6 error code draft
E6 with indoor fan lock. View the fix -> EF EF is an alternate display for the outdoor fan restraint or out…
F-codes
- Lg F4 error code
On LG units, F4 points to low refrigerant levels (grouped by LG with CH32/33/36/38 on some models) or, on othe…
H-codes
- Lg H04 error code draft
H 04 means condensate water is not being removed the way the unit expects, or a full-water condition is being … - Lg H05 error code
H05 on LG units (displayed as CH05) is a communication error between the indoor and outdoor units. Check the o… - Lg H07 error code draft
H 07 appears when connected LG indoor units are not set to compatible modes, such as one unit calling for heat… - Lg H10 error code draft
H 10 means the indoor fan is being restrained or its fan motor is not operating properly. Without reliable ind… - Lg H21 error code draft
H 21 means the outdoor inverter power module or compressor drive has reported a fault. LG's support table… - Lg H22 error code draft
H 22 means the outdoor unit detected an overcurrent condition at the inverter compressor input. That is an ele… - Lg H23 error code draft
H 23 as outdoor inverter compressor DC-link high/low voltage. Technician boundary Stop here: compressor and el… - Lg H237 error code draft
H 237 points to an indoor/outdoor connection problem and can also occur when the outdoor unit has no power. Ad… - Lg H238 error code draft
H 238 points to an indoor/outdoor connection problem and can also occur when the outdoor unit has no power. Ad… - Lg H24 error code draft
H 24 as outdoor high-pressure switch operation or pressure-switch failure. Technician boundary Stop here: refr… - Lg H25 error code draft
H 25 as outdoor input voltage high/low. Technician boundary Stop here: compressor and electrical or inverter w… - Lg H26 error code draft
H 26 as outdoor inverter compressor start failure. Technician boundary Stop here: compressor and electrical or… - Lg H27 error code draft
H 27 as PSC/PFC overcurrent. Technician boundary Stop here: compressor and electrical or inverter work is tech… - Lg H29 error code draft
H 29 as outdoor inverter compressor overcurrent with refrigerant-flow or outdoor-ventilation causes. Technicia… - Lg H30 error code draft
H 30 as compressor discharge-temperature excessive rise with refrigerant-flow causes. Technician boundary Stop… - Lg H32 error code draft
H 32 as inverter discharge-temperature high with refrigerant-flow causes. Technician boundary Stop here: refri… - Lg H33 error code draft
H 33 as compressor discharge-temperature excessive rise with refrigerant-flow causes. Technician boundary Stop… - Lg H34 error code draft
H 34 returns after airflow and filter checks. Tell them LG groups it with overheating/high-pressure protection… - Lg H35 error code draft
H 35 as excessive low-pressure drop with refrigerant-flow causes. Technician boundary Stop here: refrigerant o… - Lg H38 error code draft
H 38 as low refrigerant protection. Technician boundary Stop here: refrigerant or sealed-system and electrical… - Lg H53 error code draft
H 53 is an alternate LG communication error display. It means the indoor and outdoor units are not communicati… - Lg H54 error code draft
H 54 repeats. Tell them LG identifies it as reverse-phase detection. Technician boundary Stop here: electrical… - Lg H61 error code draft
H 61 returns after airflow and filter checks, if the outdoor unit is in an enclosed location that cannot be ve… - Lg H66 error code draft
H 66 as communication-line or piping-connection abnormality. Technician boundary Stop here: electrical or inve… - Lg H67 error code draft
H 67 means the outdoor fan is being restrained or its fan motor is not operating properly. The outdoor coil ca… - Lg H90 error code draft
H 90 as test-run protection with piping/refrigerant-flow checks. Technician boundary Stop here: refrigerant or… - Lg H91 error code draft
H 91 as test-run protection with piping/refrigerant-flow checks. Technician boundary Stop here: refrigerant or… - Lg H93 error code draft
H 93 as indoor/outdoor communication, with outdoor-power checks on post-2021 models. Technician boundary Stop …
P-codes
- Lg P4 error code
P4 means an over-temperature protection event on LG models that display P-codes instead of CH codes: the unit … - Lg P6 error code
P6 means an over-temperature protection event on LG models that display P-codes instead of CH codes: the unit … - Lg P7 error code draft
P7 instead of CH 61. The unit is protecting itself from high outdoor temperature in cooling or high indoor tem… - Lg P8 error code draft
P8 instead of CH 61. The unit is protecting itself from high outdoor temperature in cooling or high indoor tem…