icetro IC-0170A, Technician'S Handbook, Page: 77 / 166

Problem Possible Cause Correction
Ice machine does
not cycle into
harvest mode.
Harvest float switch
is dirty.
Descale and sanitize the ice
machine.
Harvest float switch
wire is disconnected.
Connect the wire
Harvest float switch is
out of adjustment.
Adjust the harvest float
switch.
Uneven ice fill (thin at
top of evaporator).
Refer to “Shallow or
Incomplete Cubes”
Ice quality
is poor
Poor incoming water
quality.
Test the quality of the
incoming water and
make appropriate filter
recommendations.
Water filtration is poor. Replace the filter.
Ice machine is dirty. Descale and sanitize the ice
machine.
Ice machine
produces shallow
or incomplete
cubes, or the ice
fill pattern on
the evaporator is
incomplete.
Ice thickness float is
out of adjustment.
Adjust the ice
thickness float
Water level is
too low.
Check the water float.
Water filtration is poor. Replace the filter.
Hot incoming water. Connect the ice machine to
a cold water supply.
Incorrect incoming
water pressure.
Water pressure must be 20-
80 psi (137.9 -551.5 kPa)
Ice machine is not level. Level the ice machine
Low ice capacity.
The condenser is dirty. Clean the condenser.
High air temperature
around ice machine
(air-cooled models).
Air temperature must
not exceed 100° F (43°C).
Inadequate clearance
around the ice
machine.
Provide adequate clearance
Objects stacked around
ice machine, blocking
condenser airflow
Remove items blocking
airflow
Hot incoming water. Connect to cold water
Incorrect incoming
water pressure. Water
pressure is too low or
water filter is restricted.
Water pressure must be 20-
80 psi (137.9 -551.5 kPa).
Replace water filter.
Ice thickness probe out
of adjustment or dirty
Adjust or clean the ice
thickness probe.
Ice thickness probe
out of adjustment or
dirty
Adjust or clean the ice
thickness probe.
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