Bunn CDBCF APS, CDBCF TC, CDBC APS, CDBC TC manual Refill Valve

Page 29

SERVICE (cont.)

 

REFILL VALVE

If continuity is not present as described, replace the

 

refill valve.

 

6. Check the refill valve for coil action. Connect the brewer to the power source. With "ON/OFF" switch in the "ON' upper position press start switch and listen carefully in the vicinity of the refill valve for a" clicking" sound as the coil magnet attracts.

7. Disconnect the brewer from the power source.

If the sound is heard as described and water will not pass through the refill valve, there may be a blockage in the water line before the refill 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 refill valve.

 

P1857

Removal and Replacement:

 

 

 

FIG. 11 REFILL VALVE

1.

Remove both wires from the refill valve.

 

 

2.

Turn off the water supply to the brewer and drain

Location:

 

the tank.

3.

Disconnect the water lines to and from the refill

 

The refill valve is located inside the trunk on the

 

valve.

lower center part of the component bracket.

4.

Remove the two 1/4"-20 screws securing the refill

Test Procedures:

 

valve mounting bracket to the component bracket.

 

Remove bracket and valve as an assembly.

1. Disconnect the brewer from the power source.

5.

Using two 1/4"-20 screws install the new refill

2. Disconnect the white and white/blue wires from

 

valve and bracket to the component bracket.

 

the refill valve. Set the "ON/OFF" switch in the "ON"

6.

Securely fasten the water lines to and from the

 

upper position.

 

valve.

3. With a voltmeter, check the voltage across the coil

7.

Refer to FIG. 12 when reconnecting the wires.

 

wires. Connect the brewer to the power source.

8.

Install access panels and covers and refer to Initial

 

The indication must be 120 volts ac for two wire

 

Set-up for refill and operation.

 

120 volt models and three wire 120/208 and 120/

 

 

 

240 volt models.

 

 

4. Disconnect the brewer from the power source.

 

 

If voltage is present as described, proceed to #5.

 

 

If voltage is not present as described, refer to Wiring

 

 

Diagrams and check brewer wiring harness.

 

 

5.

Check for continuity across the refill valve coil

WHI from Terminal

 

terminals.

Block

If continuity is present as described, reconnect the

WHI/BLU from

Control Board

white and white/blue wires from the circuit board.

 

P1858

 

 

 

Page 29

FIG. 12 REFILL VALVE WIRING

 

29707.1 082803

 

 

Image 29
Contents Disco Ntinued V ERS ION Introduction ContentsCDBCF-DV Brewers User NoticesCdbcf APS-DV Brewers Cdbcf APS-DV & TC-DV Brewers#02765.0000 #12364.0000 #00656.0000 Electrical Requirements Models CDBC-DV, CDBC-APS DV & Cdbcf TC-DVInitial SET-UP Plumbing RequirementsCoffee Brewing Faucet ModelsOperating Controls CleaningSetting Brew Temperature Adjustments & Optional SettingsNow disabled Pulse Brew Setup ProceedureWater Sensing Threshold Adjustment Procedure Before troubleshooting this brewer, check for the following TroubleshootingRemedy TroubleshootingRefill Circuit Problem Probable Cause Troubleshooting Refill Circuit Water does not heat to proper tem- perature Heating Circuit ProblemProblem Probable Cause Troubleshooting Heating CircuitTank Heater Ings are takenProblem Probable Cause Remedy Brewing Circuit Problem Probable Cause Consistently low beverage level Brew volume Troubleshooting Brewing CircuitDispenser Be made with sprayhead installed Brew cycle will not start Control board or dispense valveSet-upinstructions Water temperatureDripping from sprayhead Lime build up RequiredProblem Probable Cause Cause Things to Check DiagnosticsComponent Access When servicing, except when electrical tests are reControl Board ServiceSwitch Panel Dispense Valve Limit Thermostat Limit Thermostat WiringValve from the bottom of the tank Tank Heaters29707.1 Voltage Selector Switch Terminals Voltage Selector SwitchRefill Valve Warmer Elements Schematic Wiring Diagram Cdbc DV Schematic Wiring Diagram Cdbc APS-DV Cdbcf APS/TC/LPTC-DV

CDBC TC, CDBC APS, CDBCF TC, CDBCF APS specifications

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