Troubleshooting - Follett C19999 Operation And Service Manual

Troubleshooting

Please see "Service" section for a description of each function.
Ice machine disposition
Legend:
ON OFF ON or OFF
1. Ice machine is in running
condition but not making ice.
2. The CPU is not flashing.
3. Machine in TIME DELAY
without full bin.
4. Ice machine is not making ice.
Locked in PURGE.
5. Ice machine is not making ice.
HI AMPS.
Possible Causes
FLASHING
1. Defective compressor.
2. Defective start relay.
3. Defective start capacitor.
4. Defective run capacitor.
5. Defective main contactor.
6. No output from PC board.
1. Processor has been damaged.
1. Ice jamming due to improperly
installed transport tube causing a
false shuttle.
2. Shuttle stuck in up position.
3. Damaged or improperly installed
thermostat (open).
4. Transport tube backed-out of
coupling.
1. A self-flush occurred but could
not drain evaporator due to a
failed drain solenoid valve.
2. A self-flush occurred but could
not drain evaporator due to water
reservoir or ice machine not
being level.
1. Poor water quality causing ice to
jam auger.
2. Damaged shuttle mechanism or
thermostat (closed).
3. Kinked transport tube
(thermostat systems).
4. Intermittent drive output from
PC board. Evaporator will freeze
causing a hi amps error.
5. Gearmotor is unplugged.
28
Corrective Actions
1. Replace compressor.
2. Replace start relay.
3. Replace start capacitor.
4. Replace run capacitor.
5. Replace main contactor.
6. Replace PC board.
1. Replace PC board.
1. Correct transport tube routing.
Install anti-kink elbows (#00136358)
at bends in transport tube.
2. Repair or replace shuttle mechanism.
3. Replace or reposition thermostat.
4. Correct coupling installation with new
star washer.
1. Replace drain solenoid valve.
2. Level ice machine. Check water reservoir
to make sure it is not tilted towards the
compressor.
1. Clean ice machine. Increase
flushing frequency.
2. Replace or repair shuttle mechanism/
thermostat.
3. Install anti-kink elbows (#00136358)
at bends in transport tube.
4. Replace PC board.
5. Plug in gearmotor.
(see page 15 for "no current" details)