Error Code
high
True T-23DT – Error E13: Communication Error
On your T-23DT unit, error code E13 indicates a communication failure between the main control board and another critical system component, such as the…
T-23DT Error Codes
Code List – 10 error codes found
Error Code
high
True T-23DT – Error Lo: Low Temperature Alarm
On your TRUE T-23DT unit, the "Lo" error code signifies a low temperature alarm, indicating the cabinet temperature has fallen below the set point…
Error Code
high
True T-23DT – Error Hi: High Temperature Alarm
On your TRUE T-23DT unit, a "Hi" alarm indicates the internal cabinet temperature has exceeded its safe set point. This often points to issues…
Error Code
high
True T-23DT – Error UHi: Supply Voltage High
On your T-23DT unit, error code UHi signifies that the supply voltage to the refrigeration system is excessively high, exceeding its safe operational limits.…
Error Code
high
True T-23DT – Error E6: Pot Fault
On your T-23DT unit, error code E6, labeled as a "Pot fault," typically indicates an issue with a critical temperature sensor or a control…
Error Code
high
True T-23DT – Error ULo: Supply voltage low
On your T-23DT unit, error code ULo indicates a low supply voltage detected at the control board. This critical issue prevents proper operation and…
Error Code
high
True T-23DT – Error E5: Heater Fault
On your T-23DT unit, error code E5 indicates a fault within the defrost heater circuit. This usually points to a defective defrost heater, a…
Error Code
high
True T-23DT – Error E4: Compressor Fault
On your T-23DT unit, error E4 indicates a compressor fault, meaning the refrigeration system's core component is not operating correctly. This often points to…
Error Code
medium
True T-23DT – Error E2: Sensor 2 Defect
On your TRUE T-23DT unit, error code E2 indicates a defect with Sensor 2, which is typically the evaporator coil sensor. This usually points…
Error Code
high
True T-23DT – Error E1: Sensor 1 Defect
On your TRUE T-23DT unit, error code E1 signifies a defect with Sensor 1, which is typically the primary temperature thermistor responsible for accurate…