Ice maker freezes into a solid block on the evaporator and does not harvest properly.

Safety first: Unplug the unit and allow ice to melt before working on the evaporator.

Steps to improve harvest:

• Reduce cube size: Adjust the ice thickness setting to a smaller size so cubes release more easily.
• Clean evaporator: Descale the evaporator plate to ensure smooth ice release.
• Check sensors: Inspect and test the evaporator temperature sensor and thickness probe for proper operation.
• Hot gas valve/heater: If the unit does not warm the evaporator during harvest, the Tristar hot gas valve or harvest heater may be faulty and require professional replacement.