TRUE Water Level Sensor Re-Calibration

Empty the sump tank first—disconnect the drain hose from the sump and let it fully drain. Then check the info screen to see if the water level reads under 4 mm. If it's 4 mm or higher, you need to recalibrate.

Here's the process:

• Open the front panel.

• Go to info screen and confirm the reading.

• Hit the menu gear, log in with password 5478, go to parameter settings, scroll to "calibrate water level sensor," change it from 0 to 1, and save.

• Log out, then log back in with password 0813.

• Check the info screen again — it should now read 0 mm.

• Reconnect the drain hose, close everything up, and hold the "make ice" button for 5 seconds to restart.

This is for the True cubed ice machines with the touchscreen. If your model is different, especially a smaller residential undercounter one, let me know the exact model number for more tailored steps. Always double-check the manual or True's support if you're unsure.

To Calibrate:

TRUE Ice Service Manual: https://www.truemfg.com/wp-content/uploads/2025/08/857284-TI-TCIM-Service-Manual_Rev_A_EN.pdf