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P4102
FIG. 46 HOT WATER DISPENSE
SOLENOID VALVE
Location:
The hot water solenoid valve is located on the left side
of the tank.
Test Procedures:
1. Disconnect the dispenser from the power source.
2. With a voltmeter check the voltage across the white
and blue wires at the solenoid valve. Connect the
dispenser to the power source. The indication must
be:
a) 120 volts ac for two wire 120 volt models
b) 120 volts for three wire 120/208 or 120/240 volt
models
c) 240 volts ac for two wire 240 volt models.
d) 230 volts ac for two wire 230 volt models.
3. Disconnect the dispenser from the power source.
If voltage is present as described, proceed to #4.
If voltage is not present as described, refer to the wiring
diagram and check dispenser wiring harness.
4. Disconnect the white and blue wires from the so-
lenoid valve.
5. Check for continuity across the solenoid valve coil
terminals.
If continuity is present as described, reconnect the
white and blue wires to the solenoid.
If continuity is not present as described, replace the
solenoid valve.
6. Check the solenoid valve for coil action. Connect
the dispenser to the power source. Listen carefully
in the vicinity of the solenoid valve for a “clicking”
sound as the coil magnet attracts.
7. Disconnect the dispenser from the power source.
If the sound is heard as described and water will not
pass through the solenoid valve, there may be a block-
age in the water line before the solenoid valve or the
solenoid valve may require inspection for wear, and
removal of waterborne particles.
If the sound is not heard as described, replace the
solenoid valve.
Removal and Replacement:
1. Remove the white and blue wires from the solenoid
valve.
2. Turn off the water supply to the dispenser.
3. Drain enough water from the tank (approximately
2.0 gallons) so the water level is below the dispense
valve mounting hole.
4. Disconnect the water line from the solenoid
valve.
5. Loosen the #10-32 screw securing the solenoid
valve to side of the tank. Twist the solenoid valve
clockwise and remove solenoid valve.
6. Using the #10-32 screw install new solenoid valve
on side of the tank.
7. Push the water line onto the tube on bottom of
solenoid valve.
8. Refer to schematic wiring diagrams when recon-
necting the wires.
P1995.50
FIG. 47 HOT WATER DISPENSE
SOLENOID VALVE WIRING
SERVICE (cont.)
HOT WATER DISPENSE SOLENOID VALVE (FMD-2FD,DBC-2FD,-3,DBC-3)
FMD DBC-3 shown
42672 122209