Page 30
Page 30
SYMPTOM POSSIBLE CAUSE CORRECTION
Warning Red LED ON See page 20 See page 20
No warning LED/LIGHT ON P.C. Board inoperative. Remove board and check.
No power to unit. Check electrical source.
Bin full Yellow LED ON Bin Full of ice. Nome.
Magnetic switch inoperative. Check and replace.
Machine runs, compressor P.C. Board compressor Test and replace.
does not. relay open.
Compressor contactor open. Test and replace.
Compressor relay open. Test and replace.
Compressor winding open. Test and replace.
Machine runs, makes ice, Ice thickness control open. Check sensor fingers
does not try to harvest. if are not covered
with scale sediment.
Too soft water. Water electrical conductivity
must be higher then 20 µS.
Machine can't run with
demineralized water.
Built-in relay on Check and replace P.C. Board.
P.C. Board open.
Machine runs, makes Low refrigerant charge. Check system for correct refr. charge.
and harvests ice Check for leak weight in charge.
but very slowly.
Low ice capacity. High discharge pressure Evacuate and weigh
due to not-condensable in charge.
or overcharge.
Inefficient compressor. Replace.
Condenser dirty. Clean.
Low water flow Check and repair.
(Water-cooled).
High air temperature Check temperature of air
(air-cooled). entering condenser.
Machine makes irregular ice. Plugged water distributor. Clean water distributor.
TXV supertheat wrong. Adjust or replace.
Refrigerant charge low. Adjust-check for leak.
recharge.
SERVICE DIAGNOSIS
The table below is intended as a quick reference
to aid the Service Agent in determining the cause
of a particular type of malfunction, as well as the
recommended repair. It is not intended to be an
exclusive list.
Reference to other portions of this manual,
inclusing wiring diagrams, installation, and
operation are recommended to better determine
the cause of a problem.
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