Electrical System; Normal Control Board Operation - Follett C20001 Operation And Service Manual

Electrical system

Normal control board operation

The PC board indicator lights provide all the information necessary to determine the machine's status. Green
indicator lights generally represent "go" or normal operation; Yellow indicators represent normal off conditions;
Red indicators generally represent alarm conditions, some of which will lock the machine off.
A green light labeled POWER indicates power to the machine. A flashing green light labeled CPU is normal and
indicates that the Central Processing Unit "heart beat" is working. All other normal operation status indicators are
covered as follows:
Ice machine disposition
Legend:
ON
1. Ice machine is making ice.
2. Ice machine is not making ice.
3. Ice machine is not making ice.
OFF ON or OFF
Operation conditions
FLASHING
1. Normal running.
2. Normal time delay. When the bin fills with ice, the
LOW BIN light goes out and the refrigeration and
auger drive systems immediately shut down. (Note:
The fan motor will continue to run for 10 minutes to
cool condenser) The TIME DELAY light comes on,
initiating the time delay period. When the time delay
expires, the machine will restart provided that the
LOW BIN light is on.
3. Normal purge indicator. After a selected period
of ice making time has elapsed (1 or 2 hours), the
ice machine will automatically self-flush. The com-
pressor will shut down but the fan and gearmotor
will continue to run. After the flush is complete the
machine will refill and start without a time delay.
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