Buzz
1. Error Code CH1
+ Error Name: Indoor Air Temperature Sensor Error
+ Cause: Open circuit, loose solder joint, circuit fault
+ Troubleshooting: Check electrical circuits and solder joints
2. Error Code CH2
+ Error Name: Indoor Pipe Temperature Sensor Error
+ Cause: Open circuit, poor solder joint, internal circuit fault
+ Troubleshooting: Check electrical circuits and solder joints
3. Error Code CH3
+ Error Name: Signal Wire Error from Indoor Unit to Remote Control
+ Cause: Incorrect connection, control unit malfunction, or circuit fault.
+ Solution: Contact air conditioner repair service to provide genuine control unit and proceed with connection troubleshooting.
4. Error Code CH4
+ Error Name: Float Switch or Drain Pump Error
+ Cause: Float switch stuck open, potential malfunction causing float to close.
+ Solution: Check the float switch operation.
5. Error Code CH5
+ Error Name: Loss of Connection Signal Between Outdoor Unit and Indoor Unit
+ Cause: Poor signal transmission between the two units.
+ Solution: Check the signal transmission line between the outdoor unit and indoor unit.
6. Error Code CH6
+ Error Name: Temperature Sensor Error of Outlet Pipe of Indoor Unit
Issue: Poor welding, open circuits, or faults within circuits.
Solution: Verify the welding joints of the machine.
7. Error Code CH7
Issue Name: Inconsistent operation error.
Cause: Internal components operating out of sync.
Solution: Review the operation of each component.
8. Error Code CH54
Issue Name: Three-phase electrical wiring mismatch error.
Cause: Incorrect wiring can lead to fire hazards, electric shocks, and requires prompt resolution.
Solution: Turn off the power and inspect which wires are incorrectly connected.
9. Error Code CH51
Issue Name: Overload error.
Cause: The total capacity of the indoor unit exceeds that of the outdoor unit.
Solution: This error is extremely serious, necessitating power interruption and prompt HVAC repair service.
10. Error Code CH47
Issue Name: Temperature sensor fault on the discharge pipe.
Cause: Due to open circuits, poor welding, or faults within the circuitry.
Solution: Check the electrical circuitry of the machine, paying attention to the welding joints.
Error Code CH45: Sensor malfunction detected in the condenser pipe.
Error Name: Faulty temperature sensor in the outdoor unit.
Possible Cause: Poor soldering joints or open circuits within the sensor circuit.
Troubleshooting: Inspect soldering joints for any signs of leakage or damage.
Error Code CH44: Sensor malfunction detected in the air intake temperature.
Error Name: Faulty temperature sensor in the air intake.
Cause: Due to open circuits, internal circuit faults, or poor soldering joints.
Solution: Inspect the electrical circuit of the machine.
Error Code CH33: High discharge pipe temperature detected.
Error Name: Pushing pipe temperature error.
Cause: Pushing pipe temperature exceeds 105°C.
Solution: Check pushing pipe temperature and reduce it if necessary.
Error Code CH60: Circuit board fault detected in the outdoor unit.
Error Name: Overworked circuit board in the outdoor unit leading to leakage or poor soldering.
Cause: The circuit board in the outdoor unit is overstrained, resulting in leakage or poor soldering.
Solution: Inspect the circuit board of the outdoor unit.
Error Code CH53: Transmission signal error detected.
Error Name: Transmission signal loss error.
Cause: Malfunctioning or depleted batteries in the machine controls.
Solution: Check the controls and power connections to the air conditioner.
LG's Korean ceiling-mounted air conditioner is not equipped with a display screen, so when a malfunction occurs, it will flash to alert users of the issue it's facing.
To determine the problem with LG's ceiling-mounted air conditioner, observe and count the number of flashes, then refer to the LG ceiling-mounted air conditioner error code table to identify the exact issue. For example, if the LG ceiling-mounted air conditioner flashes once, twice, or three times, it corresponds to error codes CH1, CH2, and CH3, respectively.
