Water Fill Tube & Line; 12 Vdc Water Line Heater - Norcold N109X Series Service Manual

water fill tube
The water fill tube connects the water fill line
to the ice maker. It penetrates into the freezer
cabinet from the rear of the refrigerator. This
tube is factory installed and sealed and should
not be disturbed or removed; it cannot be
replaced. See Figure 47 for the location of the
water fill tube.
water fill Line
The water fill line connects the water fill tube to
the water valve at the bottom of the refrigerator.
It is constructed of 1/4 inch plastic tubing. It
connects to the water valve and water fill tube with
1/4 inch compression style fittings. See Figure
47. The water line is encased in a 12 Vdc foil
style strip heater. To replace the water fill line the
refrigerator must be removed from the enclosure.

12 Vdc water Line heater

The water line heater encases the entire length of
the water fill line. This heater operates on 12 Vdc.
Heater operation is automatically controlled by a
small thermostat. See Figure 47. The thermostat
is "clipped" to the water valve bracket. It turns on
the heater when the surrounding temperature is
38° F, ±4° (34° to 42° F). It turns off the heater
when the temperature rises to 48°F.
50
N109X Models
Fill tube
From ac power cord
To refrigerator wire harness
To refrigerator wire harness
Figure 47. Water fill tube, line, and heater
Water valve
Brown from wire harness
Thermostat
Water line heater
Retaining clips (2)
Water line heater
connection
Refrigerator Service Manual