LG Air Conditioner – My A/C Powers On, But Won’t Run

At a Glance

If your LG air conditioner powers on but will not run, this could likely be the result of an inadequate power supply for the unit.

Try This

Select your air conditioner unit for power troubleshooting solutions.

1. Portable Window Through the Wall

2. 1. Check the air conditioner display for any error codes.

      Error codes can indicate a problem with the unit or that maintenance is required for proper function.

      Note

      If your air conditioner is displaying an error code, please visit our Air Conditioner - Error Code List article for further assistance.

   2. Check if the mode was switched from Cooling to Heat.

      To protect the compressor, the fan and compressor will momentarily stop if you switch modes from Cool to Heat or vice versa. After a few minutes, the product will resume operating in the new mode.

   3. Check the A/C power cord.

      Unplug the power cord and inspect it for damage or splitting. If free of damage, plug the A/C power cord into a its own outlet and ensure it is fully inserted.

      Note

      If the power cord is damaged or problems continue, service will be required. Please visit our Request a Repair page for further assistance.

   4. Check if the circuit breaker is tripped.

      Inspect the home's circuit breaker or the fuse dedicated to the air conditioner to see if it has been tripped or is blown. Reset or replace if necessary.

      Note

      If service is required. Please visit our Request a Repair page for further assistance.

   5. The current interrupter device is tripped.

      Press the [RESET] button located on the power cord plug. If the [RESET] button will not stay engaged, discontinue use of the air conditioner, as service is required.

      Note

      If service is required. Please visit our Request a Repair page for further assistance.