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Sccg30 & sccp30 service manual – Scotsman SCCG30 User Manual

Page 24

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Service Diagnosis

No Ice

Problem

Likely Cause

Probable Solution

No power to unit

Power disconnected

Check breaker or fuse. Reset or
replace, restart and check

Very long freeze cycle

Dirty condenser

Clean condenser

Restricted location, intake air too
hot or blocked

Eliminate restriction, have machine
moved

Evaporator thermostat not sensing
properly

Check thermostat

Spray jets dirty

Remove spray platform and clean
spray jets

Inlet water valve leaks through
during freeze

Check inlet water valve

Low on refrigerant

Check cube formation,

Connected to hot water

Check for bleed thru from / missing
check valve in building water
supply

Cannot make ice

Spray pump not pumping

Check pump motor

Fan motor not turning

Check fan motor, check fan blade

Pump hose disconnected

Check hose

Water leak

Check curtain, sump drain cap

Very low on refrigerant

Add access valve, add refrigerant
as a test. If unit makes ice, find and
correct leak.

Compressor not operating

Check compressor start
components

Check compressor voltage

Check compressor windings

Hot gas valve leaks through during
freeze

Check hot gas valve for hot outlet
during freeze

Compressor inefficient

Check compressor amp draw, if
low and all else is correct, change
compressor

September 2009

Page 23

SCCG30 & SCCP30
Service Manual

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