Icemaker Operational And Diagnostic Sequences - Follett C/E12CI400A Installation, Operation & Service Manual

Icemaker operational and diagnostic sequences

The wiring diagrams that follow illustrate the circuitry of Follett icemakers used with 12 series ice dispensers. Both
normal operation (Stages 1 – 6) and non-normal diagnostic sequences showing torque-out (Stages 7 – 10) for
use in troubleshooting are shown.
Circuitry notes
• Compressor switch should read closed in ON position.
• Bin signal is 16V DC.
• Flashing water LED at any time indicates that water signal to board has been lost for more than one
second.
• Ten-second delay: There is a 10 second delay in reaction to loss of water (WTR) or bin (B-E) signals. If
signals are not lost for more than 10 seconds, no reaction will occur.
Normal operation – Stage 1
Power is supplied to L1 of the control board. The ice level control in the dispenser is closed and calling for ice,
completing the bin signal circuit to the control board. The control board will now go through the start-up sequence.
Less than 30 seconds will elapse as the water sensor located in the float reservoir checks for water in the
reservoir. The bin empty LED (B-E), and power LED (PWR) will be on.
GRND IN
ELEC BOX
GREEN/YELLOW
G
BROWN
L
BLUE
N
START
CAPACITOR
RUN
CAP.
ORANGE
BLACK
M
FAN
4
WHITE WHITE
WATER
SENSOR
WHITE
BLACK
WHITE
RED
POTENTIAL
5
START RELAY
BLACK
2
1
ORANGE
T.O.L.
RED
S
C
R
COMPRESSOR
BLACK
2
BLACK
RUN
START
YELLOW
3
GEARMOTOR
L1
L2
COMP
FAN
DRV
BLACK
T.O.L.
16
DISPENSER
POWER
BIN
T-STAT
DR
C
20M
BIN
60M SIGNAL
SWITCH
2ND
WTR
B-T
B-E
COMPRESSOR
SWITCH
HIGH PRESSURE
SAFETY SWITCH
BLACK