Model reference
LG L4UH602FA0
Air Conditioner
4 documents9 error codes4 service modes
Available documentation
Service Manual
- Multi Air Conditioner SVC MANUAL (Exploded View)61 pg
- Multi Air Conditioner SVC MANUAL (Exploded View)60 pg
- LG Multi Type Air Conditioner SERVICE MANUAL65 pg
- Multi Type Air Conditioner SERVICE MANUAL65 pg
MyPros+ Max
Diagnose your LG L4UH602FA0.
- Step-by-step diagnostics from the service manual
- Test values, resistance specs, and wiring references
- Verified part numbers when replacement is needed
Start diagnosing
$29/month · Cancel anytime · Or $9.95 3-day pass
Error codes (9)
CodeMeaning
1Indoor air temperature thermistor open/short.2Indoor inlet pipe temperature thermistor open/short.44Outdoor air temperature thermistor open/short.45Outdoor pipe temperature thermistor open/short.5Poor communication between indoor and outdoor units.51Overload combination6Indoor outlet pipe temperature thermistor open/short.7Different operation9Indoor EEPROM data error (Art type only).Service modes (4)
- Forced OperationPress the power button on the main unit (when remote control cannot be used). Cooling model
- forced_operationPress the power button on the main unit (when remote control cannot be used).
- Test OperationOpen the front panel upward, then press and hold the power button for about 3 seconds
- test_operationOpen the front panel upward
Full entry steps, exit procedures, and test sequences are available in Max.
Related LG air conditioner models
78,000+ service manuals · 160,000+ error codes · 55+ brands
Get Started$29/month · Cancel anytime · Or $9.95 3-day pass