LG Multi V VRF and residential split systems are widely deployed in APAC and increasingly in EMEA. HVAC API talks to LG MV gateways and LG ThinQ cloud accounts to expose unified setpoint, mode, and fan-speed endpoints regardless of deployment.
HVAC · supported
LG
ModbusBACnetREST
Device families
-
Multi V VRF
3 endpoints
-
Split AC
2 endpoints
Endpoints & snippets
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Multi V VRF
- GET /v1/devices/{id}/temperature
- POST /v1/devices/{id}/setpoint
- POST /v1/devices/{id}/mode
curl -H "Authorization: Bearer $HVACAPI_KEY" \
https://api.hvacapi.com/v1/devices/{device_id}/mode
Split AC
- GET /v1/devices/{id}/temperature
- POST /v1/devices/{id}/setpoint
Fault codes & error codes
11 codes documented for LG. Confirm against your model's service manual — some codes vary between product lines (VRV vs. Sky Air vs. residential split, etc.).
11
| Code | Meaning | Severity |
|---|---|---|
| CH 05 | Indoor PCB communication error with outdoor unit Ask AI to troubleshoot → | critical |
| CH 06 | Indoor fan motor fault (BLDC lock or overcurrent) Ask AI to troubleshoot → | critical |
| CH 21 | High-pressure protection (HPS trip) Ask AI to troubleshoot → | critical |
| CH 22 | Low-pressure protection (LPS trip) Ask AI to troubleshoot → | critical |
| CH 23 | Compressor discharge temperature (Td) too high Ask AI to troubleshoot → | critical |
| CH 38 | Outdoor unit inverter PCB fault Ask AI to troubleshoot → | critical |
| CH 74 | Refrigerant cycle abnormality detected Ask AI to troubleshoot → | critical |
| CH 02 | Indoor unit pipe temperature sensor (TE) fault Ask AI to troubleshoot → | warning |
| CH 03 | Indoor unit return-air temperature sensor (THA) fault Ask AI to troubleshoot → | warning |
| CH 44 | Outdoor pipe temperature sensor (TL / TO) fault Ask AI to troubleshoot → | warning |
| CH 67 | Inter-unit communication error (multi-outdoor system) Ask AI to troubleshoot → | warning |
No codes match — try a different search term or open the brand's service manual.