Follett T400A Installation, Operation And Service Manual page 26

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 will remain
on for 60 minutes from restart. A lighted 60M LED tells the technician that the ice machine has experienced an over-
torque condition. If the ice machine runs without problems for 60 minutes and no additional torque errors occur, the
60M LED will go off and the ice machine will continue normal operation.
INPUT
POWER
G
B
W
COMPRESSOR
C
T.O.L.
RED
WHITE
Diagnostic sequence – Stage 9
The second error (2ND) LED will come on if an over-torque condition occurs while the 60M LED is still lighted. The
2ND LED will indicate to the technician that two consecutive over-torque situations have occurred. The ice machine
will shut down at this time and lock out. It will not restart unless the manual reset button is depressed.
INPUT
POWER
G
B
W
COMPRESSOR
C
T.O.L.
RED
WHITE
26 T400A/W, MCD400A/W, R400A/W, MFD400A/W, D400A/W Ice Machines
GRD
FAN
BLACK
BLACK
M
BLACK
R
M
ORANGE
S
S
BLACK
HIGH PRESSURE
SAFETY SWITCH
START
GEAR MOTOR
RELAY
START
4
2 BLACK
3
RUN
YELLOW
T.O.L.
START CAP.
GEAR MOTOR
RED START
RUN
T.O.L.
GRD
FAN
BLACK
BLACK
M
BLACK
R
M
ORANGE
L
S
S
BLACK
HIGH PRESSURE
SAFETY SWITCH
START
GEAR MOTOR
RELAY
START
4
2
BLACK
3
YELLOW RUN
T.O.L.
START CAP.
GEAR MOTOR
START
RED
RUN
T.O.L.
WATER
SENSOR
WHITE
WHITE
RED
BLACK
1
L
BLACK
BLACK
BISON GEARMOTOR
OR
LINIX GEARMOTOR
WATER
SENSOR
WHITE
WHITE
RED
BLACK
1
BLACK
BLACK
BISON GEARMOTOR
OR
LINIX GEARMOTOR
PWR
RESET
GRD
DR
L1
L1
C
L2
20M
CONTROL
L2
BOARD 60M
L2
L2
2ND
L2
WTR
B-T
COMPRESSOR
B-E
FAN
DRIVE
COMPRESSOR
BIN SIGNAL
FROM DISPENSER
BIN T-STAT
JUNCTION BOX
(MCD400A/WVS series –
blk wire is on 24V)
PWR
RESET
GRD
DR
L1
L1
C
L2
20M
CONTROL
L2
BOARD
60M
L2
L2
2ND
L2
WTR
B-T
COMPRESSOR
B-E
FAN
DRIVE
COMPRESSOR
SWITCH
BIN SIGNAL
FROM DISPENSER
BIN T-STAT
JUNCTION BOX
(MCD400A/WVS series –
blk wire is on 24V)
RED
RED
SWITCH
RED
RED