Model reference
LG LM-4820A3L
Air Conditioner
2 documents5 error codes4 service modes
Available documentation
Service Manual
- Multi Air Conditioner SVC MANUAL (Exploded View)55 pg
- Multi Air Conditioner SVC MANUAL(Exploded View)55 pg
MyPros+ Max
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Error codes (5)
CodeMeaning
1Indoor suction temperature thermistor open/short circuit.12Abnormal operation of multi product (simultaneous cooling and heating operation…2Indoor pipe temperature thermistor open/short circuit.3Outdoor suction temperature thermistor open/short or outdoor pipe temperature…5Poor communication between indoor and outdoor units.Service modes (4)
- Auto Restart Operation["Set the slide switch on the main indoor unit to the AUTO RESTART position.","When power is…
- Auto Restarting Operation["Set the slide switch on the main indoor unit to the AUTO RESTART position.","When power is…
- Forced Operation (C/O Model)["Locate the slide switch on the main indoor unit (labeled FORCED OPERATION / AUTO RESTART / REMOTE…
- Forced Operation (H/P Model)["Locate the slide switch on the main indoor unit.","Set the slide switch to the FORCED OPERATION…
Full entry steps, exit procedures, and test sequences are available in Max.
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