Hoshizaki AM-100BAE Service Manual page 37

The Variable Resistor VR1 is for a fine adjustment of the defrost cycle completion temperature.
The Variable Resistor VR2 is for a fine adjustment of the freeze cycle completion temperature.
Turn VR2 clockwise for a higher temperature (WARM), i.e. ice cubes with larger diameter
holes and counterclockwise for a lower temperature (COLD), i.e. ice cubes with smaller
diameter holes.
Note: Do not adjust VR2 to the lowest temperature. It will cause excessive ice production
resulting in defrost failure.
When replacing the Controller Board, turn the Variable Resistor VR1 by 90° clockwise, and
leave VR2 as it is. See Fig. 8.
Marking (RED)
Variable Resistor for
adjustment of freeze cycle
completion temperature
Variable Resistor for
adjustment of defrost cycle
completion temperature
Fig. 8
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