Model reference
LG 3090
Oven
28 error codes3 service modes
MyPros+ Max
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- Step-by-step diagnostics from the service manual
- Test values, resistance specs, and wiring references
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Error codes (28)
CodeMeaning
F01Main Relay Defect on the ACU.F02Corrupted EEPROM on the ACU.F03Humidity (Moisture) Sensor Failure.F04Relay Failure (K002 or K003).F06Heat Exchanger (HX) NTC (Thermistor) Value Too High or Too Low.F07Motor Movement Defect / Broken Drum Belt.F10MCU Communication Error (No Communication Between ACU and MCU).F11MCU Motor Failure.F12MCU Not Reset.F14Undervoltage Condition.F15MCU Failure (Rectifier Diode Shorted/Open).F18MCU Over Temperature.F19MCU Over Voltage.F1E1ACU detects a feedback signal different than expected, an input signal out of…F1E2Motor failure including over current, DC bus over/under voltage, locked rotor…F20Motor Over Current.F21UI Communication Error (No Communication Between ACU and UI).F22ACU Communication Error (No Communication Between ACU and UI).F23Compressor Defect.F24Fan Defect (Post Condenser Fan).F3E1Indicates a problem in the Front Thermistor circuit.F3E3Indicates a problem in the Hot thermistor circuit.F4E7Indicates a problem in the supply voltage to the machine.F5E1Indicates a short in the Door Switch circuit.F6E1Communication failure between the HMI and the ACU.F6E2Communication failure between the HMI and the ACU.F6E3ACU does not receive data from the Motor MCU.F9E2Indicates the drain system has a failure.Service modes (3)
- Customer-Focused Dryness Level Adjustment["Press POWER.","Press and hold the PROGRAM button as the dryer counts down '3-2-1' before…
- Reset Procedure["Turn on the dryer.","Press and hold POWER until '3-2-1' and then 'rES' appears in the…
- Service Diagnostic Mode / Service Test Cycle["Open and close the dryer door (door must be closed).","Ensure dryer is in standby mode (plugged…
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