Service Diagnosis - Scotsman AFE325 Product Manual

AFE325

Service Diagnosis

Problem
No ice, nothing is operating.
No ice, auger drive is operating.
Unit will not shut off.
Auger motor will not shut off.
Possible Cause
Unit has no power.
Master switch off
No water (water safety switch
open)
Spout switch open
Bin thermostat open
Auger drive motor will not start.
Auger delay switch open
Centrifugal switch is open.
Compressor will not start.
Lack of refrigerant
No condensing
Bin thermostat stuck closed.
Auger delay stuck
System pressures to low to switch
auger delay off.
August 1994
Page 16
Probable Correction
Restore power. If breaker or fuse
tripped, check for overloaded
circuit or short circuit.
Switch unit on. Determine why
switch was off.
Restore water supply. Check
filters or strainer.
Check bin thermostat for failure to
open and shut off machine.
Check spout for internal pitting.
Check air temp, it must be over
o
50 F. for thermostat to start unit.
Check windings of auger drive
motor. Check for seized gears.
Replace auger delay.
Check/replace switch
Check voltage.
Check start relay
Check start capacitor
Check compressor
Check system. Locate leak.
Recover remaining refrigerant,
replace drier, evacuate to 200
microns and weigh in the system
charge.
Fan not turning, or blade broken.
Replace thermostat.
Replace auger delay
Check pressures. If low, check for
restriction or leak.