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Samsung Error Codes & Troubleshooting
Samsung Error Codes & Troubleshooting
Samsung air conditioners feature Digital Inverter technology for energy efficiency and quiet operation.
Error Code: E1 01
Indoor temperature sensor error
Troubleshooting Steps:
Room temperature sensor malfunction. Check sensor and wiring connections.
Error Code: E1 02
Indoor coil sensor error
Troubleshooting Steps:
Indoor heat exchanger sensor fault. Professional replacement may be needed.
Error Code: E1 03
Indoor pipe sensor error
Troubleshooting Steps:
Indoor pipe temperature sensor malfunction. Check sensor connections.
Error Code: E1 04
Indoor suction sensor error
Troubleshooting Steps:
Indoor suction temperature sensor fault. Professional diagnosis required.
Error Code: E1 21
Outdoor temperature sensor error
Troubleshooting Steps:
Outdoor ambient temperature sensor failure. Check sensor operation.
Error Code: E1 22
Outdoor coil sensor error
Troubleshooting Steps:
Outdoor heat exchanger sensor malfunction. Professional diagnosis required.
Error Code: E1 23
Outdoor discharge sensor error
Troubleshooting Steps:
Compressor discharge temperature sensor fault. Check sensor and wiring.
Error Code: E1 24
Outdoor gas sensor error
Error Code: E1 25
Outdoor liquid sensor error
Error Code: E1 26
Outdoor defrost sensor error
Error Code: E1 54
Inverter CT sensor error
Troubleshooting Steps:
Inverter current transformer sensor fault. Professional diagnosis needed.
Error Code: E1 55
Inverter heat sink sensor error
Error Code: E2 01
Communication error
Troubleshooting Steps:
Communication fault between units. Check connecting cables and terminals.
Error Code: E2 02
Indoor-outdoor communication error
Troubleshooting Steps:
Communication error between indoor and outdoor units. Check wiring.
Error Code: E2 03
Multi-unit communication error
Troubleshooting Steps:
Multi-unit system communication fault. Check all unit connections.
Error Code: E3 01
Indoor fan motor error
Troubleshooting Steps:
Indoor fan motor malfunction. Check motor operation and obstructions.
Error Code: E3 02
Indoor fan feedback error
Troubleshooting Steps:
Indoor fan speed feedback error. Check motor and control board.
Error Code: E3 21
Outdoor fan motor error
Troubleshooting Steps:
Outdoor fan motor malfunction. Check motor and remove obstructions.
Error Code: E3 22
Outdoor fan feedback error
Troubleshooting Steps:
Outdoor fan speed feedback error. Professional diagnosis required.
Error Code: E4 01
Outdoor unit PCB error
Troubleshooting Steps:
Outdoor unit control board malfunction. Professional replacement required.
Error Code: E4 02
Indoor unit PCB error
Troubleshooting Steps:
Indoor unit control board fault. Professional replacement needed.
Error Code: E4 21
High pressure error
Troubleshooting Steps:
High pressure protection activated. Check system pressures and refrigerant.
Error Code: E4 22
Low pressure error
Troubleshooting Steps:
Low pressure protection activated. Check for refrigerant leaks.
Error Code: E4 23
Discharge temperature high
Troubleshooting Steps:
Compressor discharge temperature too high. Check refrigerant charge.
Error Code: E4 24
Suction temperature low
Troubleshooting Steps:
Suction temperature too low. Check refrigerant levels and airflow.
Error Code: E4 61
Fan motor error
Troubleshooting Steps:
Fan motor malfunction. Check for obstructions and motor operation.
Error Code: E4 62
Fan motor locked
Troubleshooting Steps:
Fan motor locked or jammed. Remove obstructions and check motor.
Error Code: E4 81
Compressor error
Troubleshooting Steps:
Compressor malfunction detected. Immediate professional attention required.
Error Code: E4 82
Compressor overcurrent
Troubleshooting Steps:
Compressor drawing excessive current. Professional diagnosis required.
Error Code: E4 83
Compressor locked rotor
Troubleshooting Steps:
Compressor motor locked. Immediate professional service required.
Error Code: E5 01
IPM error
Troubleshooting Steps:
Intelligent Power Module malfunction. Professional replacement required.
Error Code: E5 02
Inverter overload
Troubleshooting Steps:
Inverter overload protection activated. Check electrical load.
Error Code: E5 03
DC voltage error
Troubleshooting Steps:
DC bus voltage abnormality. Check power supply and inverter.
Error Code: E5 21
Power supply error
Troubleshooting Steps:
AC power supply abnormality. Check voltage and electrical connections.
Error Code: E5 22
Phase sequence error
Error Code: E5 41
EEV error
Troubleshooting Steps:
Electronic expansion valve malfunction. Professional diagnosis required.
Error Code: E5 42
EEV driver error
Troubleshooting Steps:
EEV driver circuit malfunction. Professional repair needed.
Error Code: E6 01
Freeze protection
Troubleshooting Steps:
Indoor coil freeze protection activated. Check airflow and filters.
Error Code: E6 21
Outdoor overload
Troubleshooting Steps:
Outdoor unit overload protection. Check electrical connections.
Error Code: E7 01
Drain pump error
Error Code: E7 21
Float switch activated
Error Code: E8 01
Filter cleaning reminder
Error Code: E9 01
Model information error
Error Code: E9 21
Capacity mismatch
Troubleshooting Steps:
Indoor and outdoor unit capacity mismatch. Check system configuration.
Error Code: EA 01
Defrost sensor error
Error Code: EB 01
Oil return operation
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