Norcold 121X series, Service Manual

Page: 84 / 100

82
S
ection
10
628135
D
O
N
O
T
R
OTATE
62
83
58
DISCONNECT POWER
TO
MODULE
106
626649 IM
REMOVE
#S
W
2
01/13/06
185W–115V– 60 HZ
Wire jumper
Figure 10-9. —Cycling the ice maker manually.
Shut-off arm
On position
6. Pull out the jumper wire when a “click” sound
is heard or no later than 15 seconds after
jumpering test points T and H.
a. The motor turns the ejector in a clockwise
direction and the mold heater energizes.
b. The heater de-energizes as the ejector
fingers pass through the 6 o’clock position.
c. The shut off arm begins to move up to the
OFF position as the ejector fingers pass
through the 9 o’clock position.
d. The opening of the water valve takes
place as the ejector fingers pass through
the 12 o’clock position. The valve closes
approximately seven seconds later.
e. The shut-off arm drops to the ON position
after the water valves is de-energized.
f. The ejector parks at the 2 o’clock position.
g. The cycle continues when the thermostat
senses 17 to 14 degrees Fahrenheit (-8.3 to
-10 degrees Celsius).
The motor should run smoothly throughout the
cycle until the ejector is parked.
If the motor does not run, stops or makes
grinding noises, replace ice maker. See
section “Replacing Ice Maker,” page 87.
Figure 10-10. —Ice maker 7-minute cycle
events.
Mo
ld
He
at
er
Sh
ut
-O
ff A
rm
Up
OFF
ON
Ice
Cu
bes
Sw
ept
W
at
er
V
al
ve
O
N
W
at
er
V
al
ve
O
FF
Shut-O
ff Arm
Do
wn
New cycle begins
Mo
tor
Ene
giz
ed
Ice Ejected
Testing Water Valve Operation
Water valve operation can be tested by
jumpering points V and L.
Before this test is performed, make sure AC
power is available, shut off the water supply to
the water valve, and make an insulated wire
jumper like the one illustrated in Figure 10-8,
page 81.
To test water valve operation:
1. Remove the ice bin and freezer shelf.
2. Detach the ice maker from the evaporator
plate. Do not to pull on the wire harness.
3. Rotate the ice maker so the module cover
faces toward the freezer door, then remove
the cover.
4. Insert one end of the jumper in test point V
and the other in test point L. See Figure 10-
11, page 83.
When jumpered, the solenoid coil should make
a click sound followed by a continous buzzing
sound as long as the jumper remains in test
points V and L.