Dometic NDA1402 User Manual page 8

Draining the ice maker
If the RV is in storage and the refrigerator or the DC power is
turned "OFF" there will be no 12V DC present to operate the
heat tape; therefore, it will be necessary to drain and dry the ice
maker. This will prevent water from freezing in the solenoid
valve or becoming stale and producing bad tasting ice.
If the temperatures are expected to reach or exceed 0°F/-18°C
the ice maker must be drained to prevent component damage
and leaks.
NOTE! Water, compressed air and AC power are required to
drain the ice maker. Draining of the ice maker must be done by
a qualified service technician.
To drain the ice maker, follow these steps:
1. Shut off water supply valve to the ice maker.
2. Place a shallow pan under water solenoid valve.
3. Remove inlet fitting to ice maker water solenoid
valve. Drain water from the supply line.
4. Remove the plastic nut and water line from outlet
side of the water solenoid valve. Drain water from
the line.
Water solenoid valve
Plastic nut
Metal tube
1/4" Water line
to ice maker
5. Connect compressed air onto the inlet fitting of the
water solenoid valve.
6. Apply AC power to the solenoid valve by forcing the
ice maker mold assembly through several harvest
cycles.
7. Remove the plastic cover from the mold assembly.
The bail arm must be in the down ("ON") position.
OPERATING INSTRUCTIONS
Inlet fitting for
water supply line
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8. Start the harvest cycle with a flat blade screw driver
inserted into the center of the small gear.
9. Turn the gear counterclockwise, when the hold
switch closes, the mold assembly will continue to
operate through the harvest cycle. During the water
fill sequence of the harvest cycle the compressed air
will blow out the water trapped in the solenoid valve.
10. Repeat the harvest cycle operation several times.
Up to 20 PSIG air pressure can be used to clear the
solenoid valve. Damage to solenoid can occur if AC
power is applied for more than 20 seconds.
11. Make sure that the metal tube is in the plastic water
line to the ice maker. Reconnect and tighten lines
on water solenoid valve. Leave the water supply
turned off until temperatures are above 0°F/-18°C
12. Dry the ice maker mold assembly with a soft cloth.
13. Place bail arm in the "UP/OFF" position.