Manitowoc SM050 Technician's Handbook page 101

Step 3 Disconnect the ice thickness probe from the
control board terminal. Clip the jumper wire to the
terminal on the control board and any cabinet ground.
Monitor the harvest light.
ICE THICKNESS
PROBE
EVAPORATOR
Step 3 Jumper wire connected from control board
Monitoring Harvest Light
The harvest light comes on,
and 6-10 seconds later, ice
machine cycles from freeze
to harvest.
The harvest light comes on
but the ice machine stays in
the freeze sequence.
The harvest light does not
come on.
Part Number 8001119 10/19
GROUND
BIN SWITCH
terminal to ground
The ice thickness probe is
causing the malfunction.
The control circuitry is
functioning properly. The
ice machine is in a six-
minute freeze time lock-in
(verify step 1 of this
procedure was followed
correctly).
The control board is
causing the malfunction.
JUMPER WIRE
HARVEST LIGHT
LIGHT
(GREEN)
Correction
PROBE
CONNECTION
(RED)
SV1592J
101