Tiffin Motorhomes 2015 Allegro Owner's Manual page 140

If the motorhome is equipped with an optional ice maker, the following additional steps should be
taken:
Dometic Refrigerator Ice Maker (optional)
1. Shut off the water supply to the ice maker.
2. Place a shallow pan under the water solenoid valve.
3. Remove the inlet fitting to the ice-maker water solenoid valve. Then drain the water from
the supply line.
4. Remove the plastic nut and water line from the outlet side of the water solenoid valve. Then
drain the water from that line. Note: Do not lose the metal insert from the plastic water line.
One recommended way to secure this insert is to place it into a "zip lock" bag, seal the
bag, punch a small hole through the top of the bag above the zip-lock, insert any type of
"twist-tie" through the hole, and then secure that bag to the outlet line for safekeeping.
5. Connect a source of compressed air (up to 20 psig, maximum) onto the inlet fitting of the
water solenoid valve. Apply AC power to the solenoid valve for forcing the ice-maker mold
assembly through several harvest cycles.
6. Remove the plastic cover from the mold assembly. The bail arm must be in the "down" (or
"on") position.
7. Start the harvest cycle with a flat-blade screwdriver inserted into the center of the small
gear.
8. Turn the gear counterclockwise (CCW), 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.
9. Repeat the harvest cycle operation (i.e., steps 7 and 8) several times. Note: Damage to the
solenoid valve can occur if the AC power is applied for more than 20 seconds.
10. Reconnect and tighten the lines on the water solenoid valve. The metal insert must be
installed in the plastic water line going to the outlet side of the water solenoid. Leave the
water supply turned "off " until temperatures are above 0º F (-18º C).
11. Dry out the ice-maker mold assembly with a soft cloth. Place the bail arm in the "up"
("off ') position.
ROUTINE MAINTENANCE
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