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Problem
Likely Cause
No power
No water, water diagnostic
light is on
Compressor on, fan on,
auger motor not operating.
Compressor on, fan on,
over amp safety.
Compressor on, auger on,
fan blade not turning.
No ice
Auger motor on, fan on,
compressor not drawing
power.
Auger motor on, fan on,
overload.
Compressor on, fan on,
auger motor on, ice sweep
not turning.
safety
Unit plugged in but no power
Troubleshooting
Probable Solution
Plug unit into power supply
Push and release ON/OFF button
Restore water supply, check sensor. If R.O. water
is too pure, unit cannot operate.
Check
Check
Check auger motor for voltage, if none, replace
controller. If there is voltage, check auger motor
windings, if open, replace auger motor.
Check evaporator for ice. Thaw out and retry.
Check top bearing and condition of auger.
Replace if worn.
Operate unit for a short time with auger out
bypassed. If auger motor still overloads, replace
gear reducer.
Check fan blade for ease of rotation, remove any
blockage and retry. Check fan motor, replace if
not turning freely or motor windings open.
Check compressor start relay, check compressor
windings.
Check compressor. See compressor section.
Check ice sweep. If tight to auger, auger is not
turning. Gears stripped, replace gear reducer.
Check connections to auger motor, if voltage to
motor and it does not operate, replace motor.
If pump model check for water back up or open
safety switch.
Check transformer, replace if not supplying 12
volts AC to controller.
Check user interface. See User Interface section.
If transformer and membrane are good, replace
controller.
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