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Bunn Nitron Cold Draft - Water Tank Solenoid Service

Bunn Nitron Cold Draft
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39
SERVICE (CONT.)
Water Tank Solenoid
FIG. 44 SOLENOID TERMINALS
FIG. 43 WATER TANK SOLENOID
Location:
The Water Tank solenoid is located at the inside
rear of the chassis frame.
Test Procedures:
1. Disconnect the dispenser from the power source.
2. Disconnect the two wires from the solenoid valve.
3. Check for continuity across the solenoid valve coil
terminals.
Coil Resistance should be:
20.8 +/- 1.6 Ohm @ 68° F.
21.2 +/- 1.7 Ohm @ 77° F.
If continuity is present as described, reconnect the two
wires to the solenoid.
If continuity is not present as described, replace the
solenoid valve.
Removal and Replacement:
1. Disconnect the dispenser from the power source.
2. Turn off the water supply to the dispenser.
3. Remove the two wires from the solenoid valve.
4. Disconnect the water line from the solenoid valve.
5. Remove the #10-32 screws securing the solenoid
valve to the chassis frame. Remove solenoid valve.
6. Using the #10-32 screws install new solenoid valve
to the chassis frame.
7. Reconnect the water lines to solenoid valve.
8. Refer to schematic wiring diagrams when recon-
necting the wires.
Yellow Wire
Blue Wire
55124 021418