Manitowoc QD0202A, Service Manual

Page: 108 / 175

Electrical System Section 6
6-52
Part No. 80-1100-3
Problem: Water Trough Overfilling During The
Freeze Cycle (continued)
Step 3 Allow ice machine to run. Disconnect the water
level probe from control board terminal 1F, and connect
a jumper wire from terminal 1F to any cabinet ground.
1
Remember if you are past 6 minutes from starting, the
ice machine will go into a freeze cycle water inlet valve
safety shut-off mode, and you will be unable to complete
this test. If past 6 minutes you must restart this test by
disconnecting the jumper wire, restarting the ice
machine, (step 1) and then reinstalling the jumper wire to
terminal 1F, after the compressor starts.
Figure 6-27. Step 3
Step 3 Jumper wire connected from control board terminal 1F to ground
Is water flowing into
the water trough?
The Water Level
Light is:
The Water Inlet Valve
Solenoid Coil is:
Cause
no on De-Energized
The water level probe is causing the problem.
Clean or replace the water level probe.
yes off Energized The control board is causing the problem.
yes on De-Energized The water fill valve is causing the problem.
SV1588b
CLEAN LIGHT
WATER LEVEL LIGHT
BIN SWITCH LIGHT
HARVEST/SAFETY LIMIT LIGHT
1C
1F
YELLOW
GREEN
GREEN
RED
JUMPER
G R O U ND