
SAMSUNG
Samsung Air Conditioner Troubleshooting
6 error codes with step-by-step fixes, safety warnings, and Amazon tool links.
All error codes
Error C5 on a Samsung split air conditioner indicates a communication failure between the indoor unit and the outdoor compressor unit.
45 min · skill: intermediate
Error E1 indicates a failure in the indoor unit temperature sensor (thermistor), which prevents the air conditioner from reading room temperature accurately.
25 min · skill: beginner
Error E101 on a Samsung air conditioner indicates the indoor unit's PCB has not received any data from the outdoor unit for the timeout period (typically 4 minutes).
60 min · skill: advanced
Error E458 on a Samsung air conditioner indicates the compressor overload protection has tripped.
60 min · skill: intermediate
Error E466 on a Samsung inverter air conditioner indicates the DC link voltage on the inverter PCB is out of safe range.
30 min · skill: beginner
Error E5 on Samsung air conditioners signals a compressor failure or compressor protection circuit activation.
15 min · skill: beginner