Cycle Testing Ice Maker; Checking Water Valve Operation; Water Fill Adjustment - Norcold N109X Series Service Manual

Cycle testing Ice Maker

Cycle testing the ice maker verifies if the ice maker completes
all cycle functions. The cycle test is to be done with the ice
maker dry. To cycle the ice maker operation manually:
1. Shut off the water supply to the ice maker water valve.
2. Make sure 120 volt AC is available to the ice
maker.
3. Remove ice maker cover.
4. Make sure shutoff arm is in the down position (on)
Remove jumper wire immediately after "click" sound
or no later than 15 seconds after jumping terminals
T and H. Failure to remove jumper wire may damage
the ice maker.
5. Jump terminals T and H. Use a 14 AWG jumper
wire with 1/2 inch insulation stripped from ends.
Jumper wire is shown in Figure 52. The jumping of
T and H is shown in Figure 53.
6. The ejector should begin to rotate clockwise
starting at the 2 o'clock stop position.
7. Remove jumper wire from terminals T and H
when a "click" sound is heard and no later than 15
seconds after jumping the terminals.
8. Observe ice maker operation as ejector rotates.
9. After the ice cubes break loose from the mold, the
ice maker should cycle without stopping. If the ice
maker stops, or makes loud noises, replace ice
maker. See section "Replacing Ice Maker," page 52.

Checking water Valve Operation

To check water valve operation:
1. Remove the ice maker cover.
2. Jump test point V and L. See Figure 54. Use a 14
AWG jumper wire with 1/2 inch insulation stripped
from each end (as shown in Figure 52). The
solenoid should click and buzz when energized. If
the solenoid does not click and buzz, replace the
water valve (see page 50).

water fill adjustment

The water fill adjustment screw is set at the factory. Often
times, the production of thin ice cubes or the ice maker
not cycling correctly is related to an unauthorized field
adjustment to the water fill adjustment screw. Proceed as
follows to adjust the water fill adjustment screw.
1. Remove the two screws holding the ice maker to
the mounting plate. See figure 50, page 52.
2. Remove the mounting plate from the freezer plate.
3. Remove two screws from the ice maker upper
mounting brackets.
4. Position the ice maker with the cover facing out.
Do not pull on wire harness.
5. Locate the screw and contact alignment opening
shown in Figure 55.
54
N109X Models
CAUTION
185W–115V– 60 HZ
01/13/03
figure 52. Jumper wire
185W–115V– 60 HZ
01/13/03
185W–115V– 60 HZ
01/13/03
figure 53. Cycle testing ice maker
185W–115V– 60 HZ
01/13/03
185W–115V– 60 HZ
01/13/03
V
V
L
figure 54. Checking water valve operation
L
185W–115V– 60 HZ
01/13/03
Normal setting =Contact opening
centered within hole
V 185W–115V– 60 HZ
01/13/03
L
Contact alignment opening
figure 55. water fill adjustment Screw
Refrigerator Service Manual
* Do not exceed one turn
Water fill adjustment screw