Samsung Air Conditioner Troubleshooting

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