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Service diagnosis – Scotsman 600 Prodigy Eclipse User Manual

Page 45

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Service Diagnosis

Prodigy Eclipse

ä 600, 800, 1000

February 2008

Page 45

Problem or Symptom

Possible Cause

Probable Correction

No ice

No refrigeration, unit shut down,
maximum freeze time code displayed

Check compressor, refrigerant charge,
and liquid inlet valve. Note that if liquid
inlet valve is not open, compressor will
pump down and suction pressure will be
very low.

Sump frozen

Check power supply connection to CP.
Power supplied to wrong side of
contactor will cause compressor to run
all the time.

No water to ice making section Water level sensor working properly

Clean or replace sensor

Slow ice release during harvest Cubes are too large

Check ice thickness sensor

Check for water leak

Condenser by-pass valve does not open Check coil of valve

Check power to valve during harvest

No ice sensed during harvest

Ice sensing system failure

Check curtain switch

No ice released to bin

Ice outlet blocked - check for obstruction

No ice released, vapor inlet valve does
not open

Check coil for continuity, if open replace
coil

Check for 24 volts to coil during harvest,
if non, check at relay in EH222

Check low side pressure, if pressure
does not rise during harvest, and valve is
electrically OK, replace vapor inlet valve