Manuals / Bunn / Kitchen Appliance / Coffeemaker

Bunn JDF-4SB, JDF-4D manual SERVICE CONT Dispense Platform Switch all Models

Models: JDF-4D JDF-4SB JDF-4S

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SERVICE (CONT.)

SERVICE (CONT.)

Dispense Platform Switch (all Models)

JDF-2S shown

FIG. 33 DISPENSE PLATFORM SWITCH

Location:

The Dispense Platform Switch is located below the dispenser in the front center and is mounted on the component mounting bracket.

Test Procedure:

1.Disconnect the dispenser from the power source.

2.With a voltmeter, back probe check across the two black wires on the switch.

3.Return power to the dispenser. The indication must be 24 volts ac.

4.Disconnect the dispenser from the power source.

If voltage is present as described, proceed to step 5. If voltage is not present as described, refer to the Wiring Diagrams and check back to the control board, J5.

5.With an ohmmeter, chech for continuity between the terminals shown in Fig. 34.

Continuity must be present when the switch is in the ON position.

If continuity is not present, replace the switch.

Removal and Replacement:

1.Disconnect the dispenser from the power source.

2.Loosen the two #8-32 screws securing the com- ponent mounting bracket to the dispenser base.

3.Disconnect the two black wires from the switch.

4.Press the locking tabs of the old switch and remove from the component mounting bracket.

5.Press the new switch into the component mounting bracket.

6.Connect the two black wires to the switch terminals as shown below.

7.Position the component mounting bracket in the dis- penser base and secure with two #8-32 screws.

8.Return power to the dispenser.

BLK to J5-3

BLK to J5-4

P1640

FIG. 34 SWITCH TERMINALS

30	49179	110613

Image 30

Bunn JDF-4SB, JDF-4D manual SERVICE CONT Dispense Platform Switch all Models

Contents

BUNN-O-MATIC CORPORATION SERVICE & REPAIR MANUALJDF-2S, JDF-4S JDF-4D, JDF-4SB 49179.0000C 02/14 2013 Bunn-O-Matic CorporationBUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY Basic Maintenance CONTENTSSafety first Preventive MaintenanceRecommended Daily Cleaning Instructions REQUIRED REGULAR MAINTENANCE PROBABLE CAUSE TROUBLESHOOTINGPROBLEM Cold Water CirculationDispenser Locked Out TROUBLESHOOTING ContinuedRefrigeration PROBLEMPROBABLE CAUSE TROUBLESHOOTING ContinuedPROBLEM REMEDYTROUBLESHOOTING Continued concentrate onlywater only PROBLEM1. Initial fill/setup TROUBLESHOOTING ContinuedPROBLEM PROBABLE CAUSEfrom bag-in-box connector to bottle TROUBLESHOOTING ContinuedPROBLEM PROBABLE CAUSESERVICE COMPONENT ACCESSJDF-4S shown SERVICECONT ACCESS PANELSFIG. 1 ACCESS PANELS 49179SERVICECONT DISPENSE PLATFORM REMOVAL The JDF-4S uses 2 of the two head dispense platformsSERVICE CONT Ballast JDF-2S,4S FIG. 3 BALLASTLocation SERVICE CONT Cabinet Fan all Models LocationFIG. 5 CABINET FAN SERVICE CONT LG Compressor JDF-2S,4S,4D GRN WireSERVICE CONT Compressor Cont Location SERVICE CONT GD Compressor JDF-2S,4S,4DFIG. 11 COMPRESSOR FIG.12 COMPRESSOR THERMALSERVICE CONT Compressor Cont BLU/BLK GRN WHIPlugs into Relay SERVICE CONT Compressor JDF-4SB 230V shownBLU from Capacitor SERVICE CONT Compressor ContBLU/BLK BRN from CapacitorLocation SERVICE CONT Compressor Switch all ModelsFIG. 19 COMPRESSOR SWITCH RED/BLK BLKLocation SERVICE CONT Condenser Fan all ModelsFIG. 21 CONDENSER FAN BLU/BLKSERVICE CONT Control Board, Main all Models SERVICE CONT Portion Control Board JDF-2S,4S Disconnect the dispenser from the power sourceSERVICE CONT Push Button Control Board JDF-4D FIG. 28 CONTROL BOARD CONNECTORSSERVICE CONT Portion Control Board JDF-4DSERVICE CONT Circulation Pump all Models SERVICE CONT Dispense Platform Switch all Models FIG. 33 DISPENSE PLATFORM SWITCHSERVICE CONT Dispense Pump all Models except JDF-4D SERVICE CONT Dispense Motor all Models FIG. 38 DISPENSE MOTOR CONNECTORSFIG. 37 DISPENSE MOTOR Dispense Station #1 WHI/VIO SERVICE CONT Dispense Valve all ModelsFIG. 39 DISPENSE VALVE #3 WHI/VIO Dispense Station #4 WHI/ORN YEL to Control BoardSERVICE CONT Dispense Switches JDF-2S, JDF-4S P1449SERVICE CONT Cold Water Dispense Switch JDF-4S only SERVICE CONT Dispense Membrane Switch all Models LocationCold Water Dispense Membrane Switch all Models FIG. 48 MEMBRANE SWITCHSERVICE CONT FIG.47 MEMBRANE SWITCHESSERVICE CONT EMI Filter all Models FIG. 49 EMI FILTERJDF-4S shown SERVICE CONT Lamps, Holders and Ballasts Early Models FIG. 51 LAMPS & HOLDERSFIG. 52 LAMP HOLDERS SERVICE CONT LED Lamps JDF-2S, JDF-4S Rectifier JDF-2S, JDF-4S SERVICE CONTFIG. 55 RECTIFIER Relay all Models SERVICE CONTFIG. 57 RELAY Resistor all 230V Models SERVICE CONTFIG. 59 RESISTOR WHI to Control Board SERVICE CONT Solenoid - Cold Water JDF-4S onlyWHI/VIO to Control Board FIG. 62 COLD WATER SOLENOIDSERVICE CONT Solenoid - Inlet all Models BRN to Control BoardRESISTANCE SERVICE CONT Temperature Probe all ModelsTEMP VOLTAGETEMP SERVICE CONT Temperature Sensor all ModelsFIG. 67 TEMPERATURE SENSOR RESISTANCEBoard J6-1,J12-1 SERVICE CONT Transformer all ModelsWHI/BLU to Control to ControlWHI/BLK - T12 SERVICE CONT Transformer - Lited Doors JDF-2S, JDF-4SWHI/GRN - T8 WHI - 120V T2, 240V T6Station Triac MapStation StationELECTRICAL SCHEMATIC Models with DIAGRAM for JDF-2S LED Lited DoorsSCHEMATIC WIRING DIAGRAM JDF-2S 2 WIRESCHEMATIC WIRING ELECTRICAL SCHEMATIC DIAGRAM for JDF-2SModels with Flourescent Lited Doors DIAGRAM JDF-2S2 WIRE ELECTRICAL SCHEMATIC DIAGRAM for JDF-4S Models with LED Lited DoorsSCHEMATIC WIRING DIAGRAM JDF-4S SINGLE PHASE2 WIRE SINGLE PHASE ELECTRICAL SCHEMATIC DIAGRAM for JDF-4SSCHEMATIC WIRING DIAGRAM JDF Models with Flourescent Lited DoorsSCHEMATIC WIRING DIAGRAM JDF-4D ELECTRICAL SCHEMATIC DIAGRAM for JDF-4DPress & Release Models 2 WIRE2 WIRE ELECTRICAL SCHEMATIC DIAGRAM for JDF-4D Portion Control ModelsSCHEMATIC WIRING DIAGRAM JDF-4D SINGLE PHASE2 WIRE ELECTRICAL SCHEMATIC DIAGRAM for JDF-4S-SBSCHEMATIC WIRING DIAGRAM JDF-4S-SB SINGLE PHASE