Follett T400A - Page 25

25
Normal operation – Stage 6
When the dwell time of 20 minutes has expired, the B-T LED goes off. The ice machine will go through the normal
start-up sequence when the bin level control signals the control board for ice. The WTR LED will remain on as
long as the water sensor in the  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 VAC
RED
RED
WHITE
BLACK
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
BLACK
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.
WHITE
BISON GEARMOTOR
LINIX GEARMOTOR
OR
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 VAC
RED
RED
WHITE
BLACK
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
BLACK
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.
WHITE
BISON GEARMOTOR
LINIX GEARMOTOR
OR
Diagnostic sequence – Stage 7
The 20 minute error LED (20M) is on indicating that the control board has sensed an over-torque condition (above
3A on the gearmotor) and shut the ice machine down. The 20M LED will remain on for 20 minutes after an over-
torque condition has occurred. The ice machine will remain 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  oat reservoir senses water.