corp. Icemakers Operation and Service Manual HCE1000A, HCE1000W

14
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:
1. Ice machine is making ice.
2. Ice machine is not making ice.
3. Ice machine is not making ice.
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 compressor 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.
Ice machine disposition Operating conditions
ON OFF
Legend:
ON or OFF FLASHING
POWER LOW BIN AUGER ON REFRIG ON PURGE TIME DELAY CLEANING SERVICE HI AMPS HI PRESS DRAIN CLOG HI WATER CPU LO WATER
POWER LOW BIN AUGER ON REFRIG ON PURGE TIME DELAY CLEANING SERVICE HI AMPS HI PRESS DRAIN CLOG HI WATER CPU LO WATER
POWER LOW BIN AUGER ON REFRIG ON PURGE TIME DELAY CLEANING SERVICE HI AMPS HI PRESS DRAIN CLOG HI WATER CPU LO WATER