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LG Multi V 5 Commercial VRF Aircon CH193 Error Code

Capture the LG Multi V 5 commercial VRF CH193 fault correctly, then 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. This meaning comes from the manufacturer's own 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.

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 a reset the manufacturer does not list; arrange diagnosis.

  • No manufacturer reset steps listed for CH193

    Capture the complete CH193 display and model stickers first. The manufacturer 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

Choose the listing that matches your unit

The same code has more than one listed meaning. Match the model family, the system type and the unit that shows the code before approving parts.

  • Code
    1931
    What it means
    master outdoor unit: Outdoor fan-heatsink overtemperature protection
    What to check first
    Use the complete 1931 display shown by the master outdoor unit.
  • Code
    1932
    What it means
    slave 1 outdoor unit: Outdoor fan-heatsink overtemperature protection
    What to check first
    Use the complete 1932 display shown by the slave 1 outdoor unit.
  • Code
    1933
    What it means
    slave 2 outdoor unit: Outdoor fan-heatsink overtemperature protection
    What to check first
    Use the complete 1933 display shown by the slave 2 outdoor unit.

Guidance for your model

Notes that match the code to your exact model. Electrical, refrigerant, wiring, resistance and component checks are for a technician.

  • Detail
    Diagnostic note
    What it says
    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.
  • Detail
    Diagnostic note
    What it says
    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.
  • Detail
    Diagnostic note
    What it says
    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.
  • Detail
    Singapore / model note
    What it says
    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
    Before taking any system action on CH193, take a clear display photo.
    Technician should confirm
    Confirm whether CH193 points to the indoor fan, outdoor fan, or drive circuit.
  • You can check
    Capture the LG Multi V 5 commercial VRF indoor and outdoor model stickers so the correct family row is used.
    Technician should confirm
    Check for blade obstruction, motor winding, feedback signal, and connector condition.
  • You can check
    The manufacturer lists no customer reset procedure for this code. Note whether one room, several rooms, or the whole system is affected.
    Technician should confirm
    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?
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. This meaning comes from the manufacturer's own 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.
Can I fix a LG CH193 error myself?
No. CH193 needs a technician's measurement before parts are decided. Before taking any system action on CH193, take a clear display photo. Capture the LG Multi V 5 commercial VRF indoor and outdoor model stickers so the correct family row is used.
Is it safe to keep running the aircon with a CH193 error?
If CH193 remains displayed or returns during operation, do not attempt a reset the manufacturer does not list; arrange diagnosis.
What causes a LG CH193 error?
LG CH193 has a listed meaning that depends on the exact model and on which unit shows the code. Use the decoder on this page before assuming a specific cause.
Will a LG CH193 error need a repair or a full replacement?
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.
What should I send a technician about a LG CH193 error?
Before booking, send: 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.

Where to go next

Confirm the fault

Share the error code, model number and symptoms so we can assess the likely cause.