LG Multi V 5 commercial VRF aircon CH193 error code
Use this LG Multi V 5 commercial VRF CH193 error code guide to capture the fault correctly and see what should be checked before parts are quoted. Read the final display digit: 1 identifies the master, 2 slave 1, and 3 slave 2.
What does LG CH193 mean?
LG Multi V 5 commercial VRF CH193 is listed as master outdoor unit: Outdoor fan-heatsink overtemperature protection, slave 1 outdoor unit: Outdoor fan-heatsink overtemperature protection, and slave 2 outdoor unit: Outdoor fan-heatsink overtemperature protection in VRF, Cassette, Ducted rows such as LG Multi V 5 commercial VRF. The loaded row is source-backed by official diagnostic material. Use the complete display code and its final digit - 1 for master, 2 for slave 1, or 3 for slave 2 - to choose the reporting outdoor frame before parts are quoted. Confirm the complete display code and whether its final digit identifies the master, slave 1, or slave 2 outdoor frame before accepting a parts quote.
Choose the matching source row
The same visible code has more than one source-backed meaning. Match the model family, system type, or reporting unit before approving parts.
| Code | What it means | What to check first |
|---|---|---|
| 1931 | master outdoor unit: Outdoor fan-heatsink overtemperature protection | Use the complete 1931 display for the master outdoor unit source row. |
| 1932 | slave 1 outdoor unit: Outdoor fan-heatsink overtemperature protection | Use the complete 1932 display for the slave 1 outdoor unit source row. |
| 1933 | slave 2 outdoor unit: Outdoor fan-heatsink overtemperature protection | Use the complete 1933 display for the slave 2 outdoor unit source row. |
What to do now
Use these steps before customer action or a parts quote.
Stop using the unit if CH193 returns
If CH193 remains displayed or returns during operation, do not attempt an unsourced reset; get the matching source row diagnosed.
No manufacturer reset steps listed for CH193
Capture the complete CH193 display and model stickers first. The selected source row lists no customer reset procedure; do not treat a generic power-cycle as manufacturer guidance.
Send these to us
CH193 error code, a clear display photo, LG Multi V 5 commercial VRF model stickers, affected rooms, operating state when the code appeared, and fan noise or no-airflow symptoms
Source-specific guidance
These diagnostic-reference notes help match the code to the exact model. Electrical, refrigerant, wiring, resistance, and component checks are technician work, not DIY steps.
| Source detail | What it says |
|---|---|
| Diagnostic note | Record 1931 and confirm that the master outdoor unit reported it. Avoid repeated resets and arrange fan motor, connector, feedback, driver, and mechanical-obstruction checks. |
| Diagnostic note | Record 1932 and confirm that the slave 1 outdoor unit reported it. Avoid repeated resets and arrange fan motor, connector, feedback, driver, and mechanical-obstruction checks. |
| Diagnostic note | Record 1933 and confirm that the slave 2 outdoor unit reported it. Avoid repeated resets and arrange fan motor, connector, feedback, driver, and mechanical-obstruction checks. |
| Singapore / model note | LG Singapore lists Multi V 5, but the installed unit nameplate and matching service manual control. Do not apply this row to Multi V i or another LG family. |
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 taking any system action on CH193, take a clear display photo. | Confirm whether CH193 points to the indoor fan, outdoor fan, or drive circuit. |
| Capture the LG Multi V 5 commercial VRF indoor and outdoor model stickers so the correct family row is used. | Check for blade obstruction, motor winding, feedback signal, and connector condition. |
| The selected source row lists no customer reset procedure. Note whether one room, several rooms, or the whole system is affected. | Confirm PCB fan-drive output before quoting a motor or board. |
Motor or board decision
LG Multi V 5 commercial VRF CH193 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.
LG CH193 questions
What does the LG CH193 error mean?
Can I fix a LG CH193 error myself?
Is it safe to keep running the aircon with a CH193 error?
What causes a LG CH193 error?
Will a LG CH193 error need a repair or a full replacement?
What should I send a technician about a LG CH193 error?
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