Service manual

23
Installation and Service Manual
COMPONENT DIAGNOSTICS
ICE MACHINE CHECKLIST
PROBLEM
1. ERRATIC SIPHON ACTION:
O Water level not correct
O Water pan not seated on blocks
O Float leaking through
O Algae build-up in siphon
O Siphon tube to copper vent tube too short or
kinked at rear of cabinet. Siphon not istalled
on vertical.
O Too small or restricted drain line for copper
vent tube.
O High water pressure.
CORRECTIVE ACTION
Adjust.
Reseat water pan.
A) If float is not round bulb style, replace with
#9200377.
B) If float is round bulb style, clean.
Pour 1/4 cup household bleach through siphon.
Plastic siphon tube must be 6" (15cm) to 8" (20cm)
out rear of cabinet, if not, replace tube - if tube is
kinked, reform or replace.
Increase drain size and/or remove any restrictions.
Is flow washer installed correctly? If yes, install wa-
ter pressure regulator.
PROBLEM
2. PUMP CAVITATING (PULLING AIR), or pump
air locked:
O Low water pressure
O Water supply line too small
O Water discharge from float directed at pump
pick-up tube
O Pump to distributor tube has air lock
O Water level set too low
O High water pressure agitating water
CORRECTIVE ACTION
20 PSI (1.37 Bars) or lower remove flow washer
3/8" (.32cm) minimum water supply
Raise shelf area of float bracket 2o
Tube too long and has raise at distribution tube.
Shorten tube - be certain tube does not prevent wa-
ter curtain operation
Adjust
Is flow washer installed correctly?