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Electrical system
ATTENTION!
To prevent circuit breaker overload, wait 15 minutes before restarting this unit. This allows the
compressor to equalize and the evaporator to thaw.
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 flashing green light labeled POWER indicates power to the machine. 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.
DIP Switch Settings
OFF POSITION
MCE414A/W_T, MCE414A/W_S, ER414A/W
Not used
Sleep cycle disabled
SensorSAFE
Sleep cycle
dispense duration
20 min. time delay
Flush disabled
Maint. timer ON
Replacement P425A/W installed in Symphony dispenser
Not used
Sleep cycle disabled
SensorSAFE
Sleep cycle
dispense duration
20 min. time delay
Flush disabled
Maint. timer ON
* Flush can be enabled on Symphony CT and FB models. Flush should be disabled on Symphony CI units due to risk of internal leak if
drain line is blocked. All Symphony Plus models should be set to Flush enabled.
8
MC_414A, MF_414A, R290 230 V/50 Hz Ice Machines
Operating conditions
OFF
ON or OFF
1.
2. Normal time delay. When the bin fills with ice, the LOW BIN
ON POSITION
OFF
ON
Not used
Sleep cycle enabled
Lever
Sleep cycle
dispense duration
60 min. time delay
Flush enabled
Maint. timer OFF
OFF
ON
Not used
Sleep cycle enabled
Lever
Sleep cycle
dispense duration
60 min. time delay
Flush enabled
Maint. timer OFF
FLASHING
Normal running.
light goes out momentarily 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.
414A/W installed in Symphony Plus
25/50/110 CI, CT, or FB
Not used
Sleep cycle disabled
SensorSAFE
Sleep cycle
dispense duration
20 min. time delay
Flush disabled
Maint. timer ON
Sleep cycle dispense duration
OFF
ON
OFF
ON
Not used
Sleep cycle enabled
Lever
Sleep cycle
dispense duration
60 min. time delay
Flush enabled
Maint. timer OFF
35 s
5 s
15 s
60 s
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