Manuals / Bunn / Kitchen Appliance / Coffeemaker

Bunn JDF-4SB manual SERVICE CONT Push Button Control Board JDF-4D, Control Board Connectors

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

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SERVICE (CONT.)

SERVICE (CONT.)

Push Button Control Board (JDF-4D)

P4081.25

FIG. 27 PUSH BUTTON CONTROL BOARD

Location:

The Push Button Control Board is located inside the door cover mounted on the bracket.

Test Procedure:

1.Disconnect the dispenser from the power source.

2.With a voltmeter, back probe check the voltage across pins 1 & 5 of the J6 connector on the wir- ing harness. Connect the dispenser to the power source. The indication must be 24 volts ac.

3.Disconnect the dispenser from the power source.

If voltage is not present as described, refer to the Wiring Diagrams and check the dispenser wiring harness back to the transformer (See TRANSFORMER).

J-1	N/A
J-6	Main Harness
J-7	N/A
J-9	Rinse Switch
J-10	Dispense Nozzles (Disable)
J-11	Dispense Switches

Removal and Replacement:

1.Remove the five screws securing the door cover to the door frame.

2.Carefully pull the cover forward and disconnect all switch harnesses from the connectors on the control board.

3.Remove the four #6-20 screws securing the control board to the light panel.

4.Remove the spacers from the control board and discard the old board.

5.Install the spacers on to the new control board.

6.Install new control board on the light panel using four #6-20 screws.

7.Position the door cover to the door frame and reconnect all switch harnesses to the connectors on the control board.

8.Secure the door cover to the frame with the five screws previously removed.

	J-7
	J-9
	J-11
	J-10
	J-6
	FIG. 28 CONTROL BOARD CONNECTORS
27	49179	110613
27

Image 27

Bunn JDF-4SB manual SERVICE CONT Push Button Control Board JDF-4D, Control Board Connectors

Contents

49179.0000C 02/14 2013 Bunn-O-Matic Corporation SERVICE & REPAIR MANUALJDF-2S, JDF-4S JDF-4D, JDF-4SB BUNN-O-MATIC CORPORATIONBUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY Preventive Maintenance CONTENTSSafety first Basic MaintenanceRecommended Daily Cleaning Instructions REQUIRED REGULAR MAINTENANCE Cold Water Circulation TROUBLESHOOTINGPROBLEM PROBABLE CAUSEPROBLEM TROUBLESHOOTING ContinuedRefrigeration Dispenser Locked OutREMEDY TROUBLESHOOTING ContinuedPROBLEM PROBABLE CAUSEPROBLEM concentrate onlywater only TROUBLESHOOTING ContinuedPROBABLE CAUSE TROUBLESHOOTING ContinuedPROBLEM 1. Initial fill/setupPROBABLE CAUSE TROUBLESHOOTING ContinuedPROBLEM from bag-in-box connector to bottleCOMPONENT ACCESS SERVICE49179 SERVICECONT ACCESS PANELSFIG. 1 ACCESS PANELS JDF-4S shownThe JDF-4S uses 2 of the two head dispense platforms SERVICECONT DISPENSE PLATFORM REMOVALSERVICE CONT Ballast JDF-2S,4S FIG. 3 BALLASTLocation SERVICE CONT Cabinet Fan all Models LocationFIG. 5 CABINET FAN GRN Wire SERVICE CONT LG Compressor JDF-2S,4S,4DSERVICE CONT Compressor Cont FIG.12 COMPRESSOR THERMAL SERVICE CONT GD Compressor JDF-2S,4S,4DFIG. 11 COMPRESSOR LocationSERVICE CONT Compressor Cont BLU/BLK GRN WHIPlugs into Relay 230V shown SERVICE CONT Compressor JDF-4SBBRN from Capacitor SERVICE CONT Compressor ContBLU/BLK BLU from CapacitorRED/BLK BLK SERVICE CONT Compressor Switch all ModelsFIG. 19 COMPRESSOR SWITCH LocationBLU/BLK SERVICE CONT Condenser Fan all ModelsFIG. 21 CONDENSER FAN LocationSERVICE CONT Control Board, Main all Models Disconnect the dispenser from the power source SERVICE CONT Portion Control Board JDF-2S,4SFIG. 28 CONTROL BOARD CONNECTORS SERVICE CONT Push Button Control Board JDF-4DPortion Control Board JDF-4D SERVICE CONTSERVICE CONT Circulation Pump all Models FIG. 33 DISPENSE PLATFORM SWITCH SERVICE CONT Dispense Platform Switch all ModelsSERVICE CONT Dispense Pump all Models except JDF-4D SERVICE CONT Dispense Motor all Models FIG. 38 DISPENSE MOTOR CONNECTORSFIG. 37 DISPENSE MOTOR #3 WHI/VIO Dispense Station #4 WHI/ORN YEL to Control Board SERVICE CONT Dispense Valve all ModelsFIG. 39 DISPENSE VALVE Dispense Station #1 WHI/VIOP1449 SERVICE CONT Dispense Switches JDF-2S, JDF-4SSERVICE CONT Cold Water Dispense Switch JDF-4S only Location SERVICE CONT Dispense Membrane Switch all ModelsFIG.47 MEMBRANE SWITCHES FIG. 48 MEMBRANE SWITCHSERVICE CONT Cold Water Dispense Membrane Switch all ModelsSERVICE 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 FIG. 62 COLD WATER SOLENOID SERVICE CONT Solenoid - Cold Water JDF-4S onlyWHI/VIO to Control Board WHI to Control BoardBRN to Control Board SERVICE CONT Solenoid - Inlet all ModelsVOLTAGE SERVICE CONT Temperature Probe all ModelsTEMP RESISTANCERESISTANCE SERVICE CONT Temperature Sensor all ModelsFIG. 67 TEMPERATURE SENSOR TEMPto Control SERVICE CONT Transformer all ModelsWHI/BLU to Control Board J6-1,J12-1WHI - 120V T2, 240V T6 SERVICE CONT Transformer - Lited Doors JDF-2S, JDF-4SWHI/GRN - T8 WHI/BLK - T12Station Triac MapStation Station2 WIRE DIAGRAM for JDF-2S LED Lited DoorsSCHEMATIC WIRING DIAGRAM JDF-2S ELECTRICAL SCHEMATIC Models withDIAGRAM JDF-2S ELECTRICAL SCHEMATIC DIAGRAM for JDF-2SModels with Flourescent Lited Doors SCHEMATIC WIRINGSINGLE PHASE ELECTRICAL SCHEMATIC DIAGRAM for JDF-4S Models with LED Lited DoorsSCHEMATIC WIRING DIAGRAM JDF-4S 2 WIREModels with Flourescent Lited Doors ELECTRICAL SCHEMATIC DIAGRAM for JDF-4SSCHEMATIC WIRING DIAGRAM JDF 2 WIRE SINGLE PHASE2 WIRE ELECTRICAL SCHEMATIC DIAGRAM for JDF-4DPress & Release Models SCHEMATIC WIRING DIAGRAM JDF-4DSINGLE PHASE ELECTRICAL SCHEMATIC DIAGRAM for JDF-4D Portion Control ModelsSCHEMATIC WIRING DIAGRAM JDF-4D 2 WIRESINGLE PHASE ELECTRICAL SCHEMATIC DIAGRAM for JDF-4S-SBSCHEMATIC WIRING DIAGRAM JDF-4S-SB 2 WIRE