Scotsman EH330 C with ECC Condensing Unit ECC1200 - Manual (Page 43)

EH330, EH430 and ECC Condensing Unit
Remote Low Side Cuber Service Manual
July 2013
Page 42
Problem or Symptom Possible Cause Probable Correction
Low capacity Dirty condenser Clean condenser
Air temperature intake to condens-
er very high
Re-orient condenser to avoid hot
air intake
Water temperature intake to ice
making section very high
Check for hot water supply to ice
machine due to mal-functioning or
non-existent hot water check valve
at dishwashing sink
Ice broken up and stuck between
reservoir and curtain, happens
almost every cycle
Ice thickness set too thin
Ice very uneven, check superheat
Slow harvest, check headmaster
Storage bin or dispenser not hold-
ing ice properly
Check drains for water flow from
ice machine (separate to correct)
or restriction
High volume of drinks dispensed,
cold plate melting ice
Suggest pre-cooler for water sup-
ply to cold plate
Vapor inlet valve leaks through
slightly during the freeze cycle
Check valve body for similar
temperatures on inlet and outlet,
the outlet should be colder and
frost develops on the tubes to the
evaporators
Exceeding maximum freeze time,
compressor unit trips on high dis-
charge temp
Check condenser bypass valve
Poor ice formation - very cloudy
and misshapen
Dirty water system Clean the water distributor to re-
move built up mineral scale
Low refrigerant charge. Add several pounds of refrigerant
to check. If low on charge, locate
leak. Recover refrigerant, repair
leak, replace drier, evacuate to 300
microns and weigh in the name-
plate charge.
Whistling noise at condensing unit
during harvest
By pass and liquid inlet valve coils
not getting power
Check harness
Service Diagnosis