LG Aircon CH67 Error Code & Blinking Light
Use this LG CH67 guide to decide when to stop resetting, what to capture, and what to check before parts are quoted. Match the model first; same-looking signals can point to different rows.
What Does LG CH67 Mean?
LG CH67 is listed as outdoor fan error. and outdoor BLDC fan motor lock error in Inverter Split, Multi-Split, Wall-Mounted Split rows such as LS091HSV / LS121HSV wall-mounted single-zone. The loaded row is source-backed by official diagnostic material. Do not collapse this code across model families; use the model, series, or system type to choose the right row. Confirm the exact model, series, or signal row before accepting a parts quote.
Fan motor locked, slow, not rotating, or outside the expected feedback range.
Fan blade obstruction, worn motor, weak capacitor, or damaged motor harness.
Indoor or outdoor PCB drive fault after the motor and wiring are tested.
What To Do Now
Use these steps before another reset or parts quote.
Stop using the unit if CH67 returns
If CH67 returns after one reset, stop repeated restarts and get the matching source row diagnosed.
Reset CH67 once
Capture the CH67 pattern first, then power-cycle once only and note whether the same fault returns.
Send these to us
CH67 error code and blinking light, a clear display photo and blinking-light video if the unit shows one, LG model stickers, affected rooms, reset result, and fan noise or no-airflow symptoms
Send Us What You're Seeing
Share CH67, your LG model, and what happened before it appeared. We'll read it and respond with the right next step before any work is approved.
What To Check Before Repair
Use this split to separate safe evidence capture from the tests a technician should prove before quoting parts.
| You Can Check | Technician Should Confirm |
|---|---|
| Before resetting CH67, take a clear display photo and blinking-light video if the unit shows one. | Confirm whether CH67 points to the indoor fan, outdoor fan, or drive circuit. |
| Capture the LG indoor and outdoor model stickers so the correct family row is used. | Check for blade obstruction, motor winding, feedback signal, and connector condition. |
| Note whether one room, several rooms, or the whole system is affected, plus whether it returns after one reset. | Confirm PCB fan-drive output before quoting a motor or board. |
What Changes The Next Step
These clues decide whether the first check is room-side, shared outdoor-side, refrigerant-side, source-table, or model-family confirmation.
| What You See | What It Points To |
|---|---|
| Only one indoor unit shows CH67. | The affected room, indoor board path, wiring route, or local component should be checked first. |
| Several rooms or the outdoor unit show the same CH67 fault. | The shared outdoor side, power path, communication trunk, or refrigerant circuit needs priority checking. |
| The fan starts slowly, stops, or makes abnormal noise. | Motor feedback, blade obstruction, and board output need to be separated. |
| The same code appears with different meanings in the source rows. | Model family, source table, and system type decide which meaning applies before parts are quoted. |
| The model belongs to Inverter Split, Multi-Split, Wall-Mounted Split rows such as LS091HSV / LS121HSV wall-mounted single-zone. | The loaded row is source-backed by official diagnostic material. Use the matching source row before quoting parts. |
Motor Or Board Decision
LG CH67 is repair-first when the motor, blade, or feedback circuit is confirmed. Replacement becomes relevant only if motor or board cost is poor value for the system age.
Obstruction or loose connectors are simpler than a failed motor or board output.
Motor replacement depends on whether feedback and winding tests confirm failure.
Board replacement should follow motor and harness checks, not replace them.
Read Next
Use these if the quote mentions the parts, checks, or repair path this code points to.
Other LG Error Codes
If the code you're seeing isn't CH67, jump to one of these or browse the full LG list.
Ready to Get Started?
Send the CH67 error code and blinking light, a clear display photo and blinking-light video if the unit shows one, and LG model sticker. Send the model sticker so the matching official row can be checked quickly. We can help separate motor, obstruction, harness, and board-output checks.