What error codes can appear on the steam dryer display and what do they mean?

The steam dryer displays several fault codes: tE1 indicates the thermistor of the blower housing is open or shorted, tE2 indicates the thermistor of the steam generator is open or shorted, tE4 indicates the steam generator thermistor is open or shorted, E5 indicates a water supply pump error, dE indicates a door switch abnormality (test mode only), EE indicates an EEPROM operation error, and 'Add Water' indicates the steam generator sensors did not detect a full generator within 60 seconds. Most of these codes appear during the drying cycle or diagnostic test mode. (Page 18)