Bunn cdbcf 15 Mode D'Emploi
Page 18
REFILL VALVE - EARLY MODELS
Location:
The refi ll valve is located inside the front of the
brewer.
Test Procedures:
1. Enter programming level 2, scroll to "Service Tools"
then scroll to "Refi ll Valve".
2. Briefl y activate the refi ll valve in the test mode.
With a voltmeter, check the voltage across the coil
wires.
3. The indication must be 120 volts ac for two wire 120
volt models and three wire 120/208 -240 volt models
or 230 volts ac for two wire 230 volt models.
If voltage is present, proceed to # 4.
If voltage is not present, refer to Wiring Diagrams
and check main wiring harness. If harness checks
ok, replace control board.
4. Check
1. Enter programming level 2, scroll to "Service Tools"
then scroll to "Refi ll Valve".
2. Briefl y activate the refi ll valve in the test mode.
With a voltmeter, check the voltage across the coil
wires.
3. The indication must be 120 volts ac for two wire 120
volt models and three wire 120/208 -240 volt models
or 230 volts ac for two wire 230 volt models.
If voltage is present, proceed to # 4.
If voltage is not present, refer to Wiring Diagrams
and check main wiring harness. If harness checks
ok, replace control board.
4. Check
the
refi ll valve for coil action. Briefl y activate
the refi ll valve in the test mode and listen carefully near
the refi ll valve for a"clicking" sound as the magnetic
coil pulls the plunger in.
If the sound is heard as described and water will
not pass through the refi ll valve, there may be a
blockage in the water line before the refi ll valve or,
the solenoid valve may require inspection for wear,
and removal of waterborne particles.
the refi ll valve for a"clicking" sound as the magnetic
coil pulls the plunger in.
If the sound is heard as described and water will
not pass through the refi ll valve, there may be a
blockage in the water line before the refi ll valve or,
the solenoid valve may require inspection for wear,
and removal of waterborne particles.
If the sound is not heard as described, proceed to
# 5.
5. Disconnect the brewer from the power source.
6. Check for continuity across the refi ll valve coil
terminals.
If continuity is not present as described, replace
the refi ll valve.
If continuity is present as described, there could be
some debris in the valve.
# 5.
5. Disconnect the brewer from the power source.
6. Check for continuity across the refi ll valve coil
terminals.
If continuity is not present as described, replace
the refi ll valve.
If continuity is present as described, there could be
some debris in the valve.
Removal and Replacement:
1. Remove both wires from the refi ll valve.
2. Verify that the white shutoff clamp between valve
and tank is squeezed shut.
3. Disconnect both water lines at the valve.
4. Remove the two 1/4"-20 screws securing the valve
to the component mounting bracket.
5. Using the two 1/4"-20 screws, install the new valve
to the component mounting bracket.
6. Securely fasten the water lines to the valve.
7. Refer to wiring diagrams when reconnecting the
wires.
8. Install access panels and covers and refer to Initial
Set-up for refi ll and operation.
1. Remove both wires from the refi ll valve.
2. Verify that the white shutoff clamp between valve
and tank is squeezed shut.
3. Disconnect both water lines at the valve.
4. Remove the two 1/4"-20 screws securing the valve
to the component mounting bracket.
5. Using the two 1/4"-20 screws, install the new valve
to the component mounting bracket.
6. Securely fasten the water lines to the valve.
7. Refer to wiring diagrams when reconnecting the
wires.
8. Install access panels and covers and refer to Initial
Set-up for refi ll and operation.
FIG. 18-2 REFILL VALVE
FIG. 18-1 REFILL VALVE
39132 041708