Here is a detailed list of error codes for a Samsung Dryer.
These will help you Troubleshoot your Dryer if you are having issues with it and it's showing an Error Code.
TS - Dryer Thermistor Short Sensed
TO - Dryer Thermistor Open Sensed
DO - Door Open
FE - Power Source Frequency Error
DF - Door Circuit Failure
HE - Heater Error
BE - Button Error
OD - Over Dry
ET - EEprom Fail