Ice Maker Troubleshooting Chart; Water Valve Service - Norcold 1200 series Service Manual

Ice Maker Troubleshooting Chart

Problem
No ice in
mold/no ice
yield.
Not cycling,
ice in mold.
Water
dripping from
mold/mold
overflowing.
Not cycling,
AC power
available.
Water Valve Service (Models without Water
Dispenser)
The water valve inlet strainer should be checked
annually for scale and sediment deposits. The inlet
connection internal components should only be
checked when the mold overfills. To access the
strainer and the components housed in the inlet fitting
(see Figure 54):
1. Shut off the water supply to the ice maker.
2. Disconnect the inlet fitting adapter from the water
valve inlet.
3. Check strainer position. If the strainer is seated
approximately 1/8 inch in the fitting, the orifice
seat, orifice, diffuser plate and strainer are in their
correct position. A creased strainer end usually
indicates that the diffuser plate, orifice, and orifice
seat are not in their correct position. These
components should be repositioned as shown in
Figure 54. To reposition components correctly:
a. Press the orifice seat fully against the valve
support, then seat the orifice firmly into the
orifice seat.
b. Seat the diffuser plate firmly against the orifice.
c. Seat the strainer firmly against the orifice
plate.
d. Reconnect the inlet fitting adapter to the water
valve.
Refrigerator Service Manual
Probable Causes
A. No AC power to ice maker.
B. No water available to water valve.
C. Clogged water valve strainer.
D. Water valve solenoid faulty.
A. No AC power to ice maker.
B. Ice maker OFF.
C. Mold overfilled.
D. Water valve washer seal
damaged.
A. Water fill adjustment screw set
incorrectly.
B. Water valve washer seal
damaged.
A. Mold heater failed open.
B. Motor faulty.
C. Mold thermostat faulty.
D. Wire harness thermal fuse open.
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Remedy
A. Check AC power supply.
B. Check water supply to valve.
C. Clean water valve strainer.
D. Test water valve. See page 61.
A. Check AC power supply.
B. Lower shutoff arm to ON position.
C. Check position of water valve orifice.
Reposition components.
D. Replace water valve.
A. Readjust water adjustment screw. See
page 62.
B. Replace water valve. See page 58.
A. Check motor continuity. See page 63.
B. Check motor continuity. See page 63.
C. Replace ice maker. See page 60.
D. Check continuity of black wire harness
wire.
Washer seal
Figure 54. Solenoid water valve components
1200XX/120X-IMXX Models
Orifice Seat
Orifice
Strainer
59