Symptom #3 Self-Contained Air Or Water-Cooled - Manitowoc Indigo Series Technician's Handbook

SYMPTOM #3 SELF-CONTAINED AIR OR WATER-COOLED

Ice Machine Will Not Harvest - Freeze Cycle is Normal and Ice Cubes are Not Melted After Harvest
START
Low production,
Normal fill pattern, long
harvest cycle, Possible SL #2,
Back of cubes are not melted
NO
Continued on Next Page...
Discharge line temperature is normal
YES
at the end of the freeze cycle?
Is harvest valve energized?
Is head pressure high &
suction pressure low
(Refer to Pressure Charts)
YES
YES
in harvest?
Refer to
Symptom #2
NO
Freeze Cycle
Operational
Analysis Table
Refer to Sequence of
Operation &
NO
Wiring Diagrams
Replace
YES
harvest
valve