Symptom #3 Will Not Harvest, Cubes Not Melted - Manitowoc I0320 Technician's Handbook

SYMPTOM #3 WILL NOT HARVEST, CUBES NOT MELTED

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
Discharge line temperature is normal
YES
at the end of the freeze cycle?
Is harvest valve energized?
Discharge temperature high
& suction temperature low
(Refer to Temperature 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