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Initial Start Up
1. Remove left front louver. Check machine for
any packing or wires rubbing moving parts.
Note location of control board at the left.
2. Switch on the
electrical power
to the machine.
Observe that
some of the
control’s
indicator lights
glow and its
display shows O.
3. Open the water
supply valve.
4. Push and
release the ON
button. The code
display will begin
to blink F.
The purge valve opens and the water pump starts.
In a few seconds the purge valve closes and the
water pump stops. Water will flow into the machine
until the reservoir is full. The hot gas valve and
harvest assist device will activate, then the
compressor and water pump will start. If it’s an air
cooled model the fan(s) motors will begin to turn a
few moments after the compressor starts. The
display will show a continuous F. Five seconds later
the hot gas valve will close and the harvest assist
device will return to its standby position. Warm air
will be discharged from air cooled models.
5. Observe the Ready for Harvest indicator light.
It may blink early in the cycle, that is normal.
The control will ignore that signal for the first 6
minutes of freeze.
6. During the Freeze cycle move the curtain and
observe that the SW1 or SW2 light on the
control board blinks On when the curtain
moves away from the evaporator and Off when
returned to its normal position.
Note: Moving the curtain during the Freeze cycle
has no affect on control function, but will cause
water to flow into the bin.
7. When enough ice has frozen, the Ready for
Harvest indicator light will be on steady. After
it’s been on steady for a few seconds Harvest
will begin.
The display shows an H. The hot gas valve opens,
the air cooled fan motor(s) shut off and the harvest
assist mechanism is activated. The purge valve
opens to drain some water, when it does the float
valve opens to refill the reservoir. After a few
seconds the purge valve closes but the float valve
continues to fill the reservoir. Harvest continues
until the ice is released as a unit and forces the
curtain to open. When the curtain opens it signals
the controller which returns the unit to a freeze
cycle.
8. Check the ice harvested for proper bridge
thickness. The ice bridge is factory set at 1/8
inch. If needed, adjust bridge thickness. Do
NOT make it too thin.
9. Return the louver to its normal position and
secure it to the machine.
10. Instruct the user in the operation of the
machine and its maintenance requirements.
11. Fill out and mail the warranty registration form.
Write the day, month and year of initial start up
here:
_______________________________________
Typical Ice Making Cycle Times (minutes).
Listed times are for clean machines in proper
installations. Cycle length at startup will be longer
until the system stabilizes.
Model
70
o
F air /
50
o
F. water
90
o
F. air /
70
o
F. water
CU1526A 22-25 36-29
CU1526W 21-24 28-31
CU2026A 15-18 25-28
CU2026W 15-18 20-23
CU3030A 12-15 19-22
CU3030W 10-13 15-18
CU1526, CU2026, CU3030
User Manual
March 2017
Page 10
Manual
Harvest
Clean
Code
Display
Component Operation Indicator Lights
Code Description
F .... ......Freeze Cycle
F flashes . . . . Freeze Cycle is Pending
H . . . . . . . . . . Harvest Cycle
H flashes . . . . Manual Harvest
b .... ......Bin is Full
C .... ......Clean Cycle
L . . . . . . . . . . Board Locked
d .... ......Test Mode
O .... ......Off
E . . . . . . . . . . Self Test Failed
1 flashes. . . . Max Freeze - Retrying
1 . . . . . . . . . . . Max Freeze Time Shut Down
2 flashes . . . . Max Harvest - Retrying
2 . . . . . . . . . . Max Harvest Time Shut Down
3 . . . . . . . . . . Slow Water Fill
4 . . . . . . . . . . High Discharge Temp
5 . . . . . . . . . . Sump Temp Sensor Failure
7 . . . . . . . . . . Discharge Temp Sensor Failure
8 flashes . . . Short Freeze - Retrying
8............Short Freeze - Thin ice
All 4 Upper Lights Flashing - Unit Remotely
Locked Out - Contact Leasing Company
Control Operation - See Manual
Water Light On - Restore water supply to
machine.
De-Scale Light On - Clean and sanitize
machine.
Flush Setting - To Change: Depress Off
for 3 seconds. Press On to select purge
(1-5) setting or A for Automatic.
Test Mode - Depress Off for 3 seconds,
then depress Clean for 3 seconds.
Recall Diagnostic Codes - Depress Off
for 3 seconds. Press Harvest repeatedly
to go from most recent to oldest of 10.
Reset from Code 1, 2, 4 or 8 - Depress
Off then Depress On.
Technician Section
02-4302-01
On Off
Power
Status
De-scaleWater
Sanitize
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