Manuals / Bunn / Kitchen Appliance / Coffeemaker

Bunn JDF-4D, JDF-4SB manual Rectifier JDF-2S, JDF-4S, Service Cont

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

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Rectifier (JDF-2S, JDF-4S)

SERVICE (CONT.)

Rectifier (JDF-2S, JDF-4S)

FIG. 55 RECTIFIER

Location:

The rectifier is located on the electrical component mounting bracket on the lower front of the dispenser behind the splash panel.

Test Procedures:

1.Disconnect the dispenser from the power source.

2.Remove the blue wire and the white wire from the rectifier.

3.Check the voltage across the (+) and (-) terminals on the rectifier with a voltmeter. Connect the dis- penser to the power source. The indication must be approximately 24 volts dc.

4.Disconnect the dispenser from the power source.

If voltage is present as described, the rectifier is op- erating properly.

If voltage is not present as described, refer to the dispenser wiring diagram and check the wiring back to the transformer.

Removal and Replacement:

1.Disconnect the wires from the rectifier.

2.Remove the #10-32 screw securing the rectifier.

3.Remove the rectifier and discard.

4.Secure new rectifier with #10-32 screw.

5.Refer to Fig. 56 and reconnect the wires.

BLU from Door Harness (+)

WHI/GRN to Transformer (~ AC)

WHI/BLK to Transformer (~ AC)

WHI from Door Harness (-)

FIG. 56 RECTIFIER TERMINALS

41	49179	110613

Image 41

Bunn JDF-4D, JDF-4SB manual Rectifier JDF-2S, JDF-4S, Service Cont

Contents

JDF-2S, JDF-4S JDF-4D, JDF-4SB SERVICE & REPAIR MANUALBUNN-O-MATIC CORPORATION 49179.0000C 02/14 2013 Bunn-O-Matic CorporationBUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY Safety first CONTENTSBasic Maintenance Preventive MaintenanceRecommended Daily Cleaning Instructions REQUIRED REGULAR MAINTENANCE PROBLEM TROUBLESHOOTINGPROBABLE CAUSE Cold Water CirculationRefrigeration TROUBLESHOOTING ContinuedDispenser Locked Out PROBLEMPROBLEM TROUBLESHOOTING ContinuedPROBABLE CAUSE REMEDYwater only concentrate onlyTROUBLESHOOTING Continued PROBLEMPROBLEM TROUBLESHOOTING Continued1. Initial fill/setup PROBABLE CAUSEPROBLEM TROUBLESHOOTING Continuedfrom bag-in-box connector to bottle PROBABLE CAUSECOMPONENT ACCESS SERVICEFIG. 1 ACCESS PANELS SERVICECONT ACCESS PANELSJDF-4S shown 49179The JDF-4S uses 2 of the two head dispense platforms SERVICECONT DISPENSE PLATFORM REMOVALLocation SERVICE CONT Ballast JDF-2S,4SFIG. 3 BALLAST FIG. 5 CABINET FAN SERVICE CONT Cabinet Fan all ModelsLocation GRN Wire SERVICE CONT LG Compressor JDF-2S,4S,4DSERVICE CONT Compressor Cont FIG. 11 COMPRESSOR SERVICE CONT GD Compressor JDF-2S,4S,4DLocation FIG.12 COMPRESSOR THERMALPlugs into Relay SERVICE CONT Compressor ContBLU/BLK GRN WHI 230V shown SERVICE CONT Compressor JDF-4SBBLU/BLK SERVICE CONT Compressor ContBLU from Capacitor BRN from CapacitorFIG. 19 COMPRESSOR SWITCH SERVICE CONT Compressor Switch all ModelsLocation RED/BLK BLKFIG. 21 CONDENSER FAN SERVICE CONT Condenser Fan all ModelsLocation BLU/BLKSERVICE 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 FIG. 37 DISPENSE MOTOR SERVICE CONT Dispense Motor all ModelsFIG. 38 DISPENSE MOTOR CONNECTORS FIG. 39 DISPENSE VALVE SERVICE CONT Dispense Valve all ModelsDispense Station #1 WHI/VIO #3 WHI/VIO Dispense Station #4 WHI/ORN YEL to Control BoardP1449 SERVICE CONT Dispense Switches JDF-2S, JDF-4SSERVICE CONT Cold Water Dispense Switch JDF-4S only Location SERVICE CONT Dispense Membrane Switch all ModelsSERVICE CONT FIG. 48 MEMBRANE SWITCHCold Water Dispense Membrane Switch all Models FIG.47 MEMBRANE SWITCHESJDF-4S shown SERVICE CONT EMI Filter all ModelsFIG. 49 EMI FILTER FIG. 52 LAMP HOLDERS SERVICE CONT Lamps, Holders and Ballasts Early ModelsFIG. 51 LAMPS & HOLDERS SERVICE CONT LED Lamps JDF-2S, JDF-4S FIG. 55 RECTIFIER Rectifier JDF-2S, JDF-4SSERVICE CONT FIG. 57 RELAY Relay all ModelsSERVICE CONT FIG. 59 RESISTOR Resistor all 230V ModelsSERVICE CONT WHI/VIO to Control Board SERVICE CONT Solenoid - Cold Water JDF-4S onlyWHI to Control Board FIG. 62 COLD WATER SOLENOIDBRN to Control Board SERVICE CONT Solenoid - Inlet all ModelsTEMP SERVICE CONT Temperature Probe all ModelsRESISTANCE VOLTAGEFIG. 67 TEMPERATURE SENSOR SERVICE CONT Temperature Sensor all ModelsTEMP RESISTANCEWHI/BLU to Control SERVICE CONT Transformer all ModelsBoard J6-1,J12-1 to ControlWHI/GRN - T8 SERVICE CONT Transformer - Lited Doors JDF-2S, JDF-4SWHI/BLK - T12 WHI - 120V T2, 240V T6Station Triac MapStation StationSCHEMATIC WIRING DIAGRAM JDF-2S DIAGRAM for JDF-2S LED Lited DoorsELECTRICAL SCHEMATIC Models with 2 WIREModels with Flourescent Lited Doors ELECTRICAL SCHEMATIC DIAGRAM for JDF-2SSCHEMATIC WIRING DIAGRAM JDF-2SSCHEMATIC WIRING DIAGRAM JDF-4S ELECTRICAL SCHEMATIC DIAGRAM for JDF-4S Models with LED Lited Doors2 WIRE SINGLE PHASESCHEMATIC WIRING DIAGRAM JDF ELECTRICAL SCHEMATIC DIAGRAM for JDF-4S2 WIRE SINGLE PHASE Models with Flourescent Lited DoorsPress & Release Models ELECTRICAL SCHEMATIC DIAGRAM for JDF-4DSCHEMATIC WIRING DIAGRAM JDF-4D 2 WIRESCHEMATIC WIRING DIAGRAM JDF-4D ELECTRICAL SCHEMATIC DIAGRAM for JDF-4D Portion Control Models2 WIRE SINGLE PHASESCHEMATIC WIRING DIAGRAM JDF-4S-SB ELECTRICAL SCHEMATIC DIAGRAM for JDF-4S-SB2 WIRE SINGLE PHASE