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59
NX6 / NX8 / NXA Models
Refrigerator Service Manual
Cycle Test
Cycle testing the ice maker will con
fi
rm if the mold heater
energizes and motor complete a full cycle. However, if the
ejector
fi
ngers are trapped in the ice allow the ice to partially
thaw before cycle testing the ice maker.
To cycle test the ice maker:
1. Shut off the water supply to the ice maker water valve.
2. Remove the ice maker cover.
3. Place the shut-off arm in the ON position (down).
4. Make sure 120 VAC is available to the ice maker.
5. Measure voltage across test points L and N. See Fig.
47. Voltage reading should be between 108 to 120 VAC.
If no voltage present, check the continuity of the ice
maker wire harness.
6. Short terminals T and H. An insulated jumper wire 14
AWG with 1/2 inch stripped ends is recommended. See
Fig. 48. The following events should take place during
the cycle:
Fig. 48 - Test points T and H.
Fig. 47 -Test points L and N.
108 to 120 VAC
Fig. 49 - Water Fill Adjustment Screw and Indicator.
Shorting test points T and H will start the cycle. Remove
the jumper wire from test points T and H when a click
sound is heard or immediately after 15 seconds of
shorting terminals T and H.
NOTE
Remove the jumper wire immediately after hearing the
"click" sound or 15 seconds after shorting terminals T
and H. Failing remove jumper wire will cause damage
to the heater and/or overheat the mold, which will ruin
the ice maker.
NOTE
D
O
NO
T
ROT
ATE MAN
UA
LL
Y
V
L
T
H
M
N
DISCONNECT POWER
TO REMOVE MODULE
U
R
185W-115V-60 HZ
IM # S 106 626649
11 MAY 00
WB1
Shut-Off Arm
(ON position)
MIN MAX
RANGE
HOLD
H
Hz
REL
mA
A
mV
V
V
OFF
!
!
A
COM
V
mA
μ
A
1000V MAX
400mA MAX
FUSED
10A MAX
FUSED
PEAK MIN MAX
μ
A
CAT II
4 1/2 DIGITS
1 Seconds
87
TRUE RMS MULTIMETER
III
V
V
D
O
NO
T
ROT
ATE MAN
UA
LL
Y
V
L
T
H
M
N
DISCONNECT POWER
TO REMOVE MODULE
U
R
185W-115V-60 HZ
IM # S 106 626649
11 MAY 00
WB1
Insulated Jumper Wire
(14 AWG with 1/2" stripped ends)
Shut-Off Arm
(ON position)
D
O
NO
T
ROT
ATE MAN
UA
LL
Y
V
L
T
H
M
N
DISCONNECT POWER
TO REMOVE MODULE
U
R
185W-115V-60 HZ
IM # S 106 626649
11 MAY 00
WB1
Water fill adjustment
alignment indicator
Water fill
adjustment
screw
a. The mold heater begins to heat the mold.
b. The ice maker ejector starts to cycle.
c. About 15 seconds into the cycle, the
thermostat produces a “click” sound.
d. As the ejector
fi
ngers reach the 12 o'clock
position the water valve energizes.
7. If the water valve does not remain energized between
3.5 and 7.5 seconds, see Water Fill Adjustment.
Ice Maker - cont’d.
!
WARNING
Burn hazard!
The mold heater will heat the bottom of
the mold. Handle or grasp the ice maker by its sides
when performing a cycle test.
