Error code
tC4
Meaning
The drum motor temperature sensor detected a problem
Moderate
What to do
Why this happens
Causes may include an out-of-range drum IPM temperature sensor, circuit wiring issues affecting the sensor, or an inverter PBA fault impacting readings.
How to fix it
Reduce the load size and ensure good airflow. If it keeps happening, the motor temperature sensor needs professional inspection.
SourceSamsung service manual / Customer Repair Guide