Service Diagnosis - Scotsman CS0415 Service Manual

Service Diagnosis

Symptom
Will not make ice. Water
reservoir is full. Evaporator is
cold with thin/partial/irregular or
no ice slab
Will not make ice. Water
reservoir is full. Evaporator is
warm.
Low capacity
Too much ice in bin
Noise
Ice freezing together in the bin
Possible Cause
Seeping water valve. Condenser
is hot
Partial refrigerant leak or
restriction (U-shaped slab)
Defective recirculating pump
Partially blocked water distributor Clean distributor and evaporator
Compressor is not running
Blocked condenser or stalled fan
motor
Unit is in the startup mode
Room temperature below 55
o
(13 C)
Seeping water valve. Condenser
is hot
Slow or defective drain or drain
pump causing water to back up
into the bin
Airflow blocked
Control in extended cycle mode
Defective bin thermistor
Banging sound
Grinding, cavitating sound.
Grinding, cavitating sound from
recirculating pump
Noisy drain pump
Normal if little ice is used.
July 2007
Page 18
Service Manual
Probable Correction
Replace water valve
Check for leak/restriction and
repair or replace defective
component
Repair or replace the pump
motor assembly
Test compressor, relay and
overload
Clean condenser, repair or
replace motor
Wait 5 minutes and recheck
o
F Bin thermistor has unit shut off.
Advise user.
Replace water valve
Repair or replace drain or drain
pump
Remove blockage
Go to manual test 9, if clean light
is blinking, push Clean button
once.
Test and replace thermistor
The slab dropping off the plate
and ice dropping from the cutter
grid into an empty bin are normal
sounds
The reservoir is empty. Look for
a partially released slab,
interference with cutter grid etc
and clean the evaporator plate.
If the reservoir is full replace the
pump
Repair or replace
Use more ice.
CS0415