Welbilt Koolaire KD0270A, Technician'S Handbook, Page: 55 / 136

Part Number STH047 Rev01 10/18 55
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.
EVAPORATOR
ICE THICKNESS
PROBE
PROBE
CONNECTION
GROUND
JUMPER WIRE
BIN SWITCH
LIGHT
(GREEN)
HARVEST LIGHT
(RED)
SV1592J
Step 3 Jumper wire connected from control board terminal to
ground
Monitoring Harvest Light Correction
The harvest light comes on, and
6-10 seconds later, ice machine
cycles from freeze to harvest.
The ice thickness probe is
causing the malfunction.
The harvest light comes on but
the ice machine stays in the
freeze sequence.
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 harvest light does not
come on.
The control board is causing the
malfunction.