Low Ice Making Capacity - Air Cooled - Scotsman Prodigy C0322 Technical & Service Manual

Low Ice Making Capacity - Air Cooled

Problem
Long freeze cycle
Long Harvest Cycle
False bin full signal
Makes Excessive Noise - Air cooled
Problem
Fan blade vibrates
Compressor vibrates
Water pump vibrates
Panels vibrate
Likely Cause
Dirty air filters
Dirty condenser
Hot ambient
Water leak
Water inlet valve leaks through
Low on refrigerant
Incorrect superheat
Fan(s) cycle on and off
Dirty evaporator
No harvest assist
Bridge thickness too big
Machine in very cool ambient
Ice jammed in between curtain and sump
Curtain does not close correctly
Likely Cause
Blade is bent
Fan motor mount is broken
Mounting bolts loose
Pump bearings worn
Mounting screws loose
January 2015 Page 45
Probable Solution
Clean filters
Clean condenser
Reduce room air temperature
Check purge valve, check curtain
Check inlet valve
Add refrigerant, if cycle time drops, check
for leak
Check evaporator superheat, if
significantly low or high, replace TXV
Check pressures fans cycle at. Replace
fan pressure switch if too low
De-scale water system
Check harvest assist solenoid
Check and adjust bridge thickness
Increase room temperature
Clear ice away
Check curtain for proper swing
Probable Solution
Replace fan blade
Replace motor mount
Tighten bolts
Replace pump
Tighten screws