Model reference
LG HPI-C2077(A2UN186FA0)
Air Conditioner
1 document12 error codes4 service modes
Available documentation
Service Manual
- Multi Type Room Air Conditioner SVC MANUAL (Exploded View)132 pg
MyPros+ Max
Diagnose your LG HPI-C2077(A2UN186FA0).
- Step-by-step diagnostics from the service manual
- Test values, resistance specs, and wiring references
- Verified part numbers when replacement is needed
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Error codes (12)
CodeMeaning
1Indoor temperature thermistor open/short or indoor pipe temperature thermistor…10DC low voltage error.11High pressure / Instantaneous power failure.13Overload combination error.14Discharge pipe temperature overheating.2Outdoor temperature thermistor open/short or outdoor pipe temperature…3Wired remote controller communication error.4Drain pump error.5Poor communication between indoor and outdoor units.7Difference operation8CT / Current error.9DC Peak error.Service modes (4)
- Forced OperationSet the slide switch on the main unit to the forced operation position while power is on, or supply…
- Test Operation (Convertible Type)Press the forced operation switch for approximately 3 seconds
- Test Run (Cassette Type)Press the forced operation button for 5 seconds.
- Test Run (Room Type)Press the timer cancel button five times continuously.
Full entry steps, exit procedures, and test sequences are available in Max.
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