Scotsman BC0530 Service Manual page 38

BC0530 Service Manual
Problem
Defrost valve opens
during water fill.
Ice remains attached to
the water plate surface
at the end of defrost.
TROUBLE SHOOTING
Possible Cause
Slow water fill.
Cold potable water supply.
Ice frozen into the water plate surface.
Thick web between ice cubes.
Ice frozen into the water plate surface.
Cubes are fully formed without small dim-
ples.
Over-freezing
Cold potable water supply.
The water supply pressure must be a
minimum of 5 PSI (34 KPA) dynamic at
the water valve. Be sure that the supply
line is of adequate size. This is especially
important for liquid cooled models where
the potable water and condenser coolant
water are supplied by the same water
line. Check for restrictions in the wa-
ter supply line including clogged filters.
Check the water line strainer and clean it
if needed.
This is normal operation of the unit, if the
water supply is too cold. Very cold water
will not rinse the ice residue from the wa-
ter plate, causing it to build up and affect
normal operation.
Adjust web thickness to specifications.
Reduce the water level until ice cubes are
produced with small dimples.
Be sure that the control stream does
not go over the dam for longer than 15
seconds.
Very cold water will not rinse the ice resi-
due from the water plate thoroughly.
March 2020
Page 38
Solution