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Service Diagnosis
Makes excessive noise
Problem Likely Cause Probable Solution
Fan blade vibrates
Blade is bent Replace fan blade
Fan motor mount is broken Replace motor mount
Compressor vibrates Mounting loose Check mounting
Water pump vibrates Pump bearings worn Replace pump
Panels vibrate Mounting screws loose Tighten screws
Makes ice, does not harvest
Problem Likely Cause Probable Solution
Ice wrong size Environment changed Adjust cube size
Little heat to evaporator
Hot gas valve does not open
Check voltage to coil when unit is
in harvest, check controller
indicator light.
Water temperature very low Adjust harvest time
Fan motor does not stop Check voltage, replace controller
Makes poor quality ice
Problem Likely Cause Probable Solution
Spray pattern poor Spray jets dirty Clean jets
Runs out of water Water leaking from reservoir Correct leak
High TDS water supply Groundwater supply Treat water
Makes ice, but melts rapidly
Problem Likely Cause Probable Solution
Restricted drain Gravity drain hose has air block Check for kinks or traps
Pooled water in bin
Pump model switch not starting
pump
Check / replace switch
March 2010
Page 25
CU50
Service Manual