25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A
27
Diagnostic sequence – Stage 7
The 20 minute error LED (20M) is on, indicating that the control board has sensed an over-torque condition (above
3 AMPS on the gearmotor). The 20M LED remains on for 20 minutes after an over-torque condition has occurred.
The icemaker remains off as long as the 20M LED is on. When the 20M LED goes off, the control board will try to
go through a normal start-up sequence. The WTR LED remains on as long as the water sensor in the fl oat reservoir
senses water.
GRD
L1
L1
L2
L2
L2
L2
L2
COMPRESSOR
FAN
DRIVE
DR
C
20M
60M
2ND
WTR
B-T
B-E
RESET
GRD
G
B
W
FAN
BLACK
WHITE
BLACK
BLACK
R
ORANGE
S
S
L
COMPRESSOR
C
RED
BLACK
BLACK
INPUT
POWER
WATER
SENSOR
CONTROL
BOARD
24V
COMMON
LINE V
A
C
RED
RED
WHI
TE
BLA
CK
BIN T-STAT
BIN SIGNAL
FROM DISPENSER
JUNCTION BOX
(MCD400A/WVS series –
blk wire is on 24V)
WHITE
RED
WHITE
M
1
COMPRESSOR
SWITCH
PWR
BLACK
T.O.L.
BLACK
RED
HIGH PRESSURE
SAFETY SWITCH
M
WHITE
BLA
CK
BLUE
RELAY
START
T.O.L.
BLACK
4
2
3
YELLOW
GEAR MOTOR
T.O.L.
GEAR MOTOR
RED
START
RUN
RUN
START
START CAP.
WHI
TE
BISON GEARMOTOR
LINIX GEARMOTOR
OR
Diagnostic sequence – Stage 8
If the restart is successful the 20M LED goes off, the 60 minute timer LED (60M) comes on. The 60M LED remains on
for 60 minutes from restart. A lighted 60M LED indicates that the icemaker has experienced an over-torque condition.
If the icemaker runs without problems for 60 minutes and no additional torque errors occur, the 60M LED goes off and
the icemaker continues normal operation.
GRD
L1
L1
L2
L2
L2
L2
L2
COMPRESSOR
FAN
DRIVE
DR
C
20M
60M
2ND
WTR
B-T
B-E
RESET
GRD
G
B
W
FAN
BLACK
WHITE
BLACK
BLACK
R
ORANGE
S
S
L
COMPRESSOR
C
RED
BLACK
BLACK
INPUT
POWER
WATER
SENSOR
CONTROL
BOARD
24V
COMMON
LINE V
A
C
RED
RED
WHI
TE
BLA
CK
BIN T-STAT
BIN SIGNAL
FROM DISPENSER
JUNCTION BOX
(MCD400A/WVS series –
blk wire is on 24V)
WHITE
RED
WHITE
M
1
COMPRESSOR
SWITCH
PWR
BLACK
T.O.L.
BLACK
RED
HIGH PRESSURE
SAFETY SWITCH
M
BLA
CK
WHI
TE
WHITE
BLUE
RELAY
START
T.O.L.
BLACK
4
2
3
YELLOW
GEAR MOTOR
T.O.L.
GEAR MOTOR
RED
START
RUN
RUN
START
START CAP.
BISON GEARMOTOR
LINIX GEARMOTOR
OR
