Bunn JDF-4S, JDF-4D, JDF-4SB User Manual

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JDF-2S, JDF-4S

JDF-4D, JDF-4SB

SERVICE & REPAIR MANUAL

BUNN-O-MATIC CORPORATION

POST OFFICE BOX 3227

SPRINGFIELD, ILLINOIS 62708-3227

PHONE: (217) 529-6601 FAX: (217) 529-6644

To ensure you have the latest revision of the Operating Manual, or to view the Illustrated Parts Catalog, Programming Manual, or Service Manual, please visit the Bunn-O-Matic website, at www.bunn.com. This is absolutely FREE, and the quickest way to obtain the latest catalog and

manual updates. For Technical Service, contact Bunn-O-Matic Corporation at 1-800-286-6070.

BUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY

Bunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows:

1) Airpots, thermal carafes, decanters, GPR servers, iced tea/coffee dispensers, MCP/MCA pod brewers thermal servers and Thermofresh servers (mechanical and digital)- 1 year parts and 1 year labor.

2) All other equipment - 2 years parts and 1 year labor plus added warranties as speciﬁed below: a) Electronic circuit and/or control boards - parts and labor for 3 years. b) Compressors on refrigeration equipment - 5 years parts and 1 year labor. c) Grinding burrs on coffee grinding equipment to grind coffee to meet original factory screen sieve analysis - parts

and labor for 4 years or 40,000 pounds of coffee, whichever comes ﬁrst.

These warranty periods run from the date of installation BUNN warrants that the equipment manufactured by it will be commercially free of defects in material and workmanship existing at the time of manufacture and appearing within the applicable warranty period. This warranty does not apply to any equipment, component or part that was not manufactured by BUNN or that, in BUNN’s judgment, has been affected by misuse, neglect, alteration, improper installation or operation, improper maintenance or repair, non periodic cleaning and descaling, equipment failures related to poor water quality, damage or casualty. In addition, the warranty does not apply to replacement of items subject to normal use including but not limited to user replaceable parts such as seals and gaskets. This warranty is conditioned on the Buyer 1) giving BUNN prompt notice of any claim to be made under this warranty by telephone at (217) 529-6601 or by writing to Post Ofﬁce Box 3227, Springﬁeld, Illinois 62708-3227; 2) if requested by BUNN, shipping the defective equipment prepaid to an authorized BUNN service location; and 3) receiving prior authorization from BUNN that the defective equipment is under warranty.

THE FOREGOING WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTY, WRITTEN OR ORAL, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF EITHER MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. The agents, dealers or employees of BUNN are not authorized to make

modiﬁcations to this warranty or to make additional warranties that are binding on BUNN. Accordingly, statements by such individuals, whether oral or written, do not constitute warranties and should not be relied upon. If BUNN determines in its sole discretion that the equipment does not conform to the warranty, BUNN, at its exclusive option while the equipment is under warranty, shall either 1) provide at no charge replacement parts and/or labor (during the applicable parts and labor warranty periods speciﬁed above) to repair the defective components, provided that this repair is done by a BUNN Authorized Service Representative; or 2) shall replace the equipment or refund the purchase price for the equipment.

THE BUYER’S REMEDY AGAINST BUNN FOR THE BREACH OF ANY OBLIGATION ARISING OUT OF THE SALE OF THIS EQUIPMENT, WHETHER DERIVED FROM WARRANTY OR OTHERWISE, SHALL BE LIMITED, AT BUNN’S SOLE OPTION AS SPECIFIED HEREIN, TO REPAIR, REPLACEMENT OR REFUND.

In no event shall BUNN be liable for any other damage or loss, including, but not limited to, lost proﬁts, lost sales, loss of use of equipment, claims of Buyer’s customers, cost of capital, cost of down time, cost of substitute equipment, facilities or services, or any other special, incidental or consequential damages.

392, A Partner You Can Count On, Air Infusion, AutoPOD, AXIOM, BrewLOGIC, BrewMETER, Brew Better Not Bitter, BrewWISE, BrewWIZARD, BUNN Espress, BUNN Family Gourmet, BUNN Gourmet, BUNN Pour-O-Matic, BUNN, BUNN with the stylized red line, BUNNlink, Bunn-OMatic, Bunn-O-Matic, BUNNserve, BUNNSERVE with the stylized wrench design, Cool Froth, DBC, Dr. Brew stylized Dr. design, Dual, Easy Pour, EasyClear, EasyGard, FlavorGard, Gourmet Ice, Gourmet Juice, High Intensity, iMIX, Infusion Series, Intellisteam, My Café, Phase Brew, PowerLogic, Quality Beverage Equipment Worldwide, Respect Earth, Respect Earth with the stylized leaf and coffee cherry design, Safety-Fresh, savemycoffee.com, Scale-Pro, Silver Series, Single, Smart Funnel, Smart Hopper, SmartWAVE, Soft Heat, SplashGard, The Mark of Quality in Beverage Equipment Worldwide, ThermoFresh, Titan, trifecta, Velocity Brew, Air Brew, Beverage Bar Creator, Beverage Proﬁt Calculator, Brew better, not bitter., BUNNSource, Coffee At Its Best, Cyclonic Heating System, Daypart, Digital Brewer Control, Element, Milk Texturing Fusion, Nothing Brews Like a BUNN, Pouring Proﬁts, Signature Series, Sure Tamp, Tea At Its Best, The Horizontal Red Line, Ultra are either trademarks or registered trademarks of Bunn-O-Matic Corporation. The commercial trifecta® brewer housing conﬁguration is a trademark of Bunn-O-Matic Corporation.

49179 070913

INTRODUCTION

Safety ﬁrst!

To avoid electrical shock, unplug dispenser from power source before servicing inside.

Basic Maintenance

In order to maintain proper machine operation, a Preventative Maintenance schedule must be performed on a regular basis.

The following procedures pretain to all versions in the JDF family of machines unless otherwise noted.

CONTENTS

Warranty ...................................................................................................................................2

User Notices .............................................................................................................................3

Site Preparation .......................................................................................................................3

Preventive Maintenance

Recommended Daily Cleaning ...........................................................................................4

Preventive Maintenance Schedule ....................................................................................... 5

Troubleshooting ........................................................................................................................ 6

Service .................................................................................................................................... 12

Electrical Schematics ..............................................................................................................50

USER NOTICES

All notices on this equipment are written for your protection. All notices are to be kept in good condition.

Replace any unreadable or damaged labels.

SITE PREPARATION

A minimal clearance is required between the dispenser sides and the wall or another appliances.For optimum performance, do not allow warm air from surrounding machines blow on the JDF dispenser. Leave some space so the dispenser can be moved for cleaning.

49179 110613

Recommended Daily Cleaning Instructions

The use of a damp cloth rinsed in any mild, non-abrasive, liquid detergent is recommended for cleaning all surfaces on Bunn-O-Matic equipment. Do NOT clean this equipment with a water jet device.

1. Open dispenser door. Lift up on product containers to disconnect them from the machine inlet.

4. Open dispenser door and reconnect all product containers.

2. Close door, place an empty container under the dispense nozzles.

5. Remove dispense nozzles and drip tray. Wash all parts in warm soapy water.

3. Dispense from each station until clear water ﬂows from the dispense nozzle.

6. With a warm/soapy cloth, wipe down interior of cabinet and splash panel area behind dispensing nozzles.

7. Replace drip tray and dispense nozzles.

8. Dispense from each station until ﬁnished product ﬂows from the dispense nozzles.

49179 110613

REQUIRED REGULAR MAINTENANCE:

When performing Daily-Weekly Cleaning procedures, inspect o-rings, seals, and bushings for signs of wear or damage and replace immediately.

Check and/or replace every 6 months or as required:

39690.0000 Pump Tube Replacement Kit (Includes items indented below)

28755.1011 Tube, Norprene .25" ID x 17.0" lg

32732.0000 Clamp .39"/.48"

32656.0000 Fitting, Elbow .25" Barb x .38" Barb

21275.0003 Clamp .57"/.70"

34325.0032 Hose, Flex .38" ID x 5.25" lg

49179 110613

TROUBLESHOOTING

A troubleshooting guide is provided to suggest probable causes and remedies for the most likely problems encountered. If the problem remains after exhausting the troubleshooting steps, contact the Bunn-O-Matic Technical Service Department.

• Inspection,testing,andrepairofelectricalequipmentshouldbeperformedonlybyqualiedserviceperson-

nel.

• Allelectroniccomponentshavehighvoltageacandlowvoltagedcpotentialontheirterminals.Shortingof

terminals or the application of external voltages may result in board failure.

• Intermittentoperationofelectroniccircuitboards isunlikely.Boardfailurewillnormallybepermanent.If

an intermittent condition is encountered, the cause will likely be a switch contact or a loose connection at a

terminal or crimp.

• Solenoidremovalrequiresinterruptingthewatersupplytothevalve.Damagemayresultifsolenoidsare

energized for more than ten minutes without a supply of water.

• Theuseoftwowrenchesisrecommendedwheneverplumbingttingsaretightenedorloosened.Thiswill

help to avoid twists and kinks in the tubing.

• Makecertainthatallplumbingconnectionsaresealedandelectricalconnectionstightandisolated.

• Thisunitisheatedatalltimes.Keepawayfromcombustibles.

WARNING – • Exerciseextremecautionwhenservicingelectricalequipment.   • Unplugthedispenserwhenservicing,exceptwhenelectricaltestsarespecied.   • Followrecommendedserviceprocedures   • Replaceallprotectiveshieldsorsafetynotices

PROBLEM PROBABLE CAUSE REMEDY

Cold Water Circulation

Dispense stations not working. Note: Cooling failure or excessive

1. Cabinet cooling fan.

Replace fan (24vdc). Note: Fan receives power when the

dispenser is powered. cabinet temperatures for more than 4 hours will result in dispense lockout or no dispense. Note: Reset fault/timer by unplug-

2. Bath recirculation pump.

A) If not running, check refrigeration

switch and wiring for proper conti-

nuity. ging unit.

B) Check for 120V or 230V AC at

pump. Replace pump.

3. Restricted water ﬂow to cabinet

Check for kinked hose.

water coil and bath.

49179 110613

TROUBLESHOOTING (Continued)

PROBLEM

Refrigeration

Dispense stations not working. Note: Cooling failure or excessive bath and cabinet temperatures for more than 4 hours will result in dispense lockout or no dispense.

PROBABLE CAUSE REMEDY

1. Compressor ON/OFF switch.

Check for "ON" position or no continuity - replace switch.

2. Dirty condenser ﬁlter or ﬁns.

Clean ﬁlter and ﬁns or replace condenser ﬁlter. (Filter not supplied on some machines).

3. Condenser fan not running.

A) Check for 120V or 230V AC. Replace fan motor or check fan blades for obstructions.

B) Check compressor LED on circuit board. If ON, relay coil should have power (120 or 230 VAC).

4. Compressor relay not activating.

Check compressor relay coil for 120 or 230vac. NOTE: Always check power with coil attached. If compressor LED is ON and no 120 or 230vac - replace board. If yes, 120 or 230vac - replace relay. Note: Relay contacts are normally open.

Dispenser Locked Out

Dispense stations not working.

Cooling system failure.

5. Compressor not running.

6. Compressor running and not cooling.

1. Check Dispense Lockout switch.

1. Refrigeration or cold water recirculation system.

Check compressor thermal overload (N/C). If open check for dirty condenser ﬁlter or adequate ventilation and space around machine.

Check refrigeration system for leaks and proper charge.

(A) Set switch to ON position.

(B) Check switch and harness for proper continuity.

Check all previous items that pretain to refrigeration or cold water recirculation

49179 110613

TROUBLESHOOTING (Continued)

PROBLEM

Dispense station not working

All stations dispense concentrate only

PROBABLE CAUSE REMEDY

1. Dispense Lockout switch set to

Place switch in ON position.

OFF position.

2. Dispense switch failed

Check switch and harness for proper

continuity.

Main water supply

Frozen bath

Check for ON position.

A) Compressor relay/contacts short-

ed - replace relay.

B) Recirculating pump - replace or

check for kinked ﬂex line.

Inlet water valve failed

A) Check for 120V or 230V power

when dispensing. If yes, replace

valve. If no, check harness for proper

continuity. Then replace circuit board

if needed.

49179 110613

TROUBLESHOOTING (Continued)

PROBLEM

Dispense station

concentrate only

Dispense station

water only

PROBABLE CAUSE REMEDY

Water solenoid

Replace solenoid (24vdc) or check wire connection between water valve and main control board.

Concentrate out

Replace reﬁll concentrate container or BIB

Product pump not pumping

Check for proper counterclockwise rotation of pump rollers. If counterclockwise, replace pump tubing. If clockwise, wire connection to pump is reversed. Switch wires on terminals.

Pump not turning

A) Check speed setting on circuit board and increase speed (turn clockwise)

B) Check for d.c. power to pump motor. If yes, replace motor assy. If no, check harness for proper continuity. Then replace circuit board if needed.

49179 110613

TROUBLESHOOTING (Continued)

PROBLEM

Water leak ﬁlling drip tray or around dispense deck area

Water leaking beneath machine

PROBABLE CAUSE REMEDY

1. Initial ﬁll/setup

Some expansion normal. May ﬁll

drip tray during initial ice block

formation

2. Dispense deck

Inspect or replace ﬁttings clamps,

o-rings, solenoids and quick discon-

nect ﬁttings.

NOTE: Dispense deck area slopes

to drain tube that leads to the drip

tray.

3. Water pressure greater than 100psi

1. Bath tank overﬂow.

Install water pressure regulator and

reduce to 50 psi.

A) Check all internal water connec-

tions.

B) Check internal plumbing connec-

tions.

Erratic spray during dispense

Dispense nozzle dripping water

2. Condensation from cabinet cooling coil.

Dispense nozzle mixer missing or broken

Dispense solenoid.

Check for routing of condensation

tube to water bath.

Replace mixer.

Replace dispense deck solenoid.

49179 110613

TROUBLESHOOTING (Continued)

PROBLEM

Unit is not working

Difﬁculty brixing and/or weak beverage

PROBABLE CAUSE REMEDY

1. Step-down transformer.

Check for 120/24 or 230/24 vac. If no 24vac reading, replace step-down transformer.

2. Main control board.

If 24 vac present and no LED’s lit, replace control board..

1. Product viscosity or too cold.

Thorough thaw of product before use (35° - 40°)

2. Low water pressure.

Maintain 20 psi or higher and a minimum ﬂow rate of 1 ﬂ oz/sec.

3. High water pressure.

Over 100 psi, install a pressure regulator and set to 50 psi.

4. Dispense valve adjustment setting.

A) Perform 3 second water dispense test. Factory setting is 1.0 oz/sec. Acceptable water ﬂow rate is .-0.8 to 1.5 oz/sec depending on the mix ratio (4+1).

Difﬁculty brixing and/or weak beverage

Difﬁculty brixing bag-in-box

5. Brix ratio.

1. Pump tubing.

2. Use of portable water pump.

Vacuum leak

B) Adjust water to proper mix ratio. Once water is set, adjust motor speed to achieve brix %.

Check for proper brix ratio per product using Total Dispense method and or refractometer method.

Inspect, clean, or replace tubing and pump rotor/rollers for ease of rotation.

A) Follow plumbing requirements for pressure and ﬂow rate.

B) Source another portable pump or water supply that meets requirements.

Inspect all lines and connections from bag-in-box connector to bottle adapter assembly.

49179 110613

SERVICE

This section provides procedures for testing and replacing various major components used in this dispenser should service become necessary. Refer to Troubleshooting for assistance in determining the cause of any problem.

WARNING - Inspection, testing, and repair of electrical equipment should be performed only by qualiﬁed service personnel. The dispenser should be disconnected from the power source when servicing, except when electrical tests are required and the test procedure speciﬁcally states to connect the dispenser to the power source.

COMPONENT ACCESS WARNING - Disconnect the dispenser from the power source before the removal of any panel or the replacement

of any component.

All components are accessible by opening the door, removal of the door panels, dispenser top covers, hopper(s), hopper support plate, splash guard, splash panel w/drip tray, lower front access panel and rear access cover.

Refer to the contents listing for component location.

INDEX

Access Panels .................................................................................................................................. 13

Dispense Platform Removal ............................................................................................................. 14

Ballast ..............................................................................................................................................15

Cabinet Fan ......................................................................................................................................16

Compressor .....................................................................................................................................17

Compressor Switch ..........................................................................................................................23

Condenser Fan .................................................................................................................................24

Control Board (Main) .......................................................................................................................25

Control Board (Portion Control Models) ..........................................................................................26

Circulation Pump .............................................................................................................................29

Dispense Platform Switch ................................................................................................................ 30

Dispense Pump ................................................................................................................................ 31

Dispense Motor ................................................................................................................................32

Dispense Valve ................................................................................................................................. 33

Dispense Switches ........................................................................................................................... 34

Cold Water Dispense Switch ............................................................................................................35

Dispense Membrane Switches ......................................................................................................... 36

Cold Water Membrane Switch .......................................................................................................... 37

EMI Filter ..........................................................................................................................................38

Lamp ................................................................................................................................................ 39

Lamp Holder ....................................................................................................................................39

LED Lamp ........................................................................................................................................40

Rectiﬁer ...........................................................................................................................................41

Relay ................................................................................................................................................ 42

Resistor ...........................................................................................................................................43

Solenoid (Cold Water) ...................................................................................................................... 44

Solenoid (Inlet) ................................................................................................................................45

Temperature Probe...........................................................................................................................46

Temperature Sensor .........................................................................................................................47

Transformer .....................................................................................................................................48

Transformer-Lited Doors .................................................................................................................. 49

Circuit Board Triac Map ....................................................................................................................50

Schematic Wiring Diagrams .............................................................................................................51

49179 012214

SERVICE(CONT.)

ACCESS PANELS

Location:

All access panels are similar through the whole JDF family (JDF-4S shown). Before removing panels, make

sure power is OFF to the machine and water is disconnected accept where indicated in testing procedures. Retain

all screws and other attaching hardware for re-assembly.

JDF-4S shown

FIG. 1 ACCESS PANELS

49179 110613

SERVICE(CONT.)

DISPENSE PLATFORM REMOVAL

1. Remove concentrate dispense tips by turning 1/4 turn to the left, then pull straight down.

2. Lift and remove product shelf to access dispense platform(s).

3. Remove front thumb screw holding dispense platform(s).

4. Disconnect 12 pin connector above dispense platform in rear.

5. Disconnect 3/8” water line at quick disconnect.

6. Remove dispense platform(s) by pulling forward.

JDF-2S shown

The JDF-4S uses 2 of the two head dispense platforms.

FIG. 2 DISPENSE PLATFORM REMOVAL

49179 110613

SERVICE (CONT.)

Ballast (JDF-2S,4S)

JDF-2S shown

P1684.40

FIG. 3 BALLAST

Location:

The door lamp ballast is located inside the dispenser

door mounted in the center of the door rear cover.

Test Procedure:

1. Disconnect the dispenser from the power source.

2. Disconnect a black and blue wire from one set of lamp sockets.

3. Connect an ohmmeter to the end of each wire.

4. Check for continuity between the two wires.

If continuity is present as described, the ballast is operating properly. If continuity is not present as described, replace the ballast.

5. Check for continuity between the other pair of black and blue wires.

5. Remove the wire to the ballast from the back of each bracket.

6. To disengage the ballast wire from the bracket, push a 1/16” allen wrench (or equivalent tool) into the front hole that lines up with the wire in the back. Pull the wire out.

7. Repeat for each bracket.

8. White jumper must remain in place on the back of the light socket.

9. Remove screws from each ballast. Remove the green ground wire from the ballast bracket by removing the bracket’s bottom screw.

10. Install the single ballast (wires on the bottom) onto the ballast bracket using 2 of the screws previously removed.

11. Attach ballast wires to the back of bulb sockets by pushing wires into holes in back of socket.

Note: Attach black wires to the top sockets, and blue wires to the bottom sockets. Reference electrical schematic if needed.

12. Snap all 4 bulb sockets back onto light panel. Reinstall ﬂuorescent bulbs.

13. Attach green ground wire to the bottom hole of the ballast bracket using 1 screw.

14. Plug in 3-pin connector into the door harness.

15. To replace door cover, re-connect the dispense switch harness to door harness. Fasten with 5 screws.

16. Reconnect power to the unit. Test operation.

Removal and Replacement:

1. Disconnect the dispenser from the power source.

2. Remove door cover by taking out the 5 screws and unplug the dispense switch harness from the door harness. Set door cover and screws aside.

3. Disconnect the 3-pin connector from the ballasts to the door harness.

4. Remove ﬂuorescent bulbs from the brackets. Pull off the four snap-in light sockets from the light panel.

P1219

FIG. 4 BALLAST TERMINALS

49179 110613

SERVICE (CONT.)

Cabinet Fan (all Models)

FIG. 5 CABINET FAN

JDF-2S shown

P1684.40

Removal and Replacement:

1. Disconnect the dispenser from the power source.

2. Remove the four screws attaching the fan and cover assembly.

3. Gently pull the cover forward and disconnect the 2-pin connector from the main wiring harness.

4. Remove the fan from the cover assembly and discard the old fan.

5. Install the new fan to the cover assembly using screws previously removed.

6. Reconnect the fan to the 2-pin connector on the main wiring harness.

7. Install the fan and cover assembly to the cabinet using screws previously removed.

8. Reconnect power to the dispenser.

Location: The cabinet fan is located inside the dispenser cabinet

mounted in the center behind the fan guard cover.

Test Procedure:

1. Disconnect the dispenser from the power source.

2. Remove the four screws attaching the fan and cover assembly.

3. Gently pull the cover forward and disconnect the 2-pin connector from the main wiring harness.

4. Check for continuity between the two wires on the fan.

If continuity is present as described, the fan is operating properly. If continuity is not present as described, replace the fan.

RED

BLK

P1219

FIG. 6 CABINET FAN TERMINALS

49179 110613

SERVICE (CONT.)

LG Compressor (JDF-2S,4S,4D)

JDF-4S shown

P1684.40

FIG. 7 COMPRESSOR

Location: The compressor is located at the top of the dispenser

frame.

Test Procedures: Compressor Relay: Refer to FIG. 8

1. Disconnect the dispenser from the power source.

2. Remove compressor terminal cover retainer (1).

3. Connect a voltmeter across the white wire and the blue/black wire. Connect the dispenser to the power source.

The indication must be: (a) 120 volts ac for two wire 120 volt models or (b) 230 volts ac for two wire 230 volt models.

5. Disconnect the dispenser from the power source.

If voltage is present as described, proceed to the following test procedures. If voltage is not present as described, refer to the Con- tactor and check the contactor.

6. Disconnect the white wire from the compressor relay.

7. Remove relay from the compressor.

8. Check for continuity across the terminal and the pin socket on the rear of the relay.

If continuity is present as described, the compressor start relay is operating properly. If continuity is not present as described, replace relay.

1 2 3

GRN Wire

FIG. 8 COMPRESSOR THERMAL

OVERLOAD PROTECTOR LOCATION

1. Compressor Terminal Cover

2. Compressor Relay

3. Thermal Overload Protector

P4298.20

Compressor:

1. Remove relay and yhermal overload protector.

2. Check for continuity across the bottom pin on the compressor and the left top pin on the compressor.

If continuity is present as described, the electrical part of the compressor is operating properly. If continuity is not present as described, replace the compressor.

Thermal Overload Protector:

1. Check for continuity across the terminals on the thermal overload protector (3).

If continuity is present as described, the thermal overload protector is operating properly. If continuity is not present as described, replace the thermal overload protector.

49179 110613

SERVICE (CONT.)

Compressor (Cont.)

Removal and Replacement: Compressor Relay: Refer to FIG. 8

1. Remove the terminal cover (1)

2. Disconnect the white wire from the compressor relay.

3. Pull relay (2) off of the compressor pins and discard.

4. Push new relay onto the compressor pins.

5. Refer to Fig. 9 and reconnect the wires.

6. Reinstall terminal cover (1).

WHI Wire

Compressor Thermal Overload Protector: Refer to

FIG. 8

1. Remove terminal cover (1).

2. Disconnect the BLU/BLK wire of the harness from the thermal overload protector.

3. Remove relay (2).

4. Remove overload protector (3) and discard overload protector.

5. Install new overload protector (3) on to the compressor.

6. Install relay (2).

7. Refer to Fig. 10 and reconnect the thermal overload protector wires.

8. Reinstall terminal cover (1).

Compressor Assy: NOTE: Before removal of any refrigeration component the refrigerant in the system must be reclaimed by a licensed refrigeration repair person. NOTE: When replacing the compressor it is recommended that the dryer also be replaced.

FIG. 9 RELAY TERMINALS

Plugs into Relay

BLU/BLK Wire

FIG. 10 THERMAL OVERLOAD PROTECTOR

TERMINALS

6. Install new compressor over the four studs in the dispenser chassis with the ﬁll valve to the right side of the dispenser.

7. Secure compressor to the dispenser chassis using four .25-20 keps nuts and washers.

8. Reconnect tubes from the condenser and the accumulator to the compressor.

9. Reinstall transformer.

10. Evacuate the system.

11. Recharge 120V and 230V system with:

1. Disconnect the tubes from the condenser and the accumulator.

2. Disconnect the compressor wiring harness from the dispenser main wiring harness.

3. Remove the four .25-20 keps nuts and washers securing the compressor to the chassis. Set nuts and washers aside for reassembly.

4. Disconnect and remove the transformer.

5. From the right side of the dispenser lift the compressor assembly over the four studs in the chassis and remove compressor.

JDF-2S - 9 oz. Type R134A refrigerant. Design Pressures: High 255 - Low 36 psi JDF-4S & 4D - 10 oz. Type R134A refrigerant. Design Pressures: High 335 - Low 88 psi

NOTE: The charging of the system must be done by a licensed refrigeration repair person. NOTE: Refer to Wiring Diagrams when reconnecting wires to Compressor, Thermal Overload Protector and Start Relay.

49179 110613

SERVICE (CONT.)

GD Compressor (JDF-2S,4S,4D)

JDF-4S shown

P1684.40

FIG. 11 COMPRESSOR

Location: The compressor is located at the top of the dispenser

frame.

1 3

Test Procedures: Compressor Start Relay: Refer to FIG. 12 WARNING: The compressor capacitor must be properly discharged before proceeding. This is most commonly done on low voltage capacitors by shorting across the terminals with a screwdriver.

1. Disconnect the dispenser from the power source.

2. Remove compressor terminal cover retainer (4).

3. Connect a voltmeter across the white wire and the blue/black wire. Connect the dispenser to the power source.

The indication must be: (a) 120 volts ac for two wire 120 volt models or (b) 230 volts ac for two wire 230 volt models.

5. Disconnect the dispenser from the power source.

If voltage is present as described, proceed to the following test procedures. If voltage is not present as described, refer to the Con- tactor and check the contactor.

6. Disconnect the two black wires from the compressor start relay.

7. Remove relay from the compressor.

8. Check for continuity across the upper left terminal and the right pin socket on the rear of the relay.

If continuity is present as described, the compressor start relay is operating properly. If continuity is not present as described, replace relay.

2 4

FIG.12 COMPRESSOR THERMAL

OVERLOAD PROTECTOR LOCATION

1. Compressor Start Relay

2. Wiring Harness Strain Relief

3. Thermal Overload Protector

4. Compressor Terminal Cover

P4040.40

Compressor:

1. With the compressor start relay (1) removed, disconnect the black wire from the compressor.

2. Check for continuity across the terminal on the compressor and the left pin on the compressor.

If continuity is present as described, the electrical part of the compressor is operating properly. If continuity is not present as described, replace the compressor.

Thermal Overload Protector:

1. Check for continuity across the terminals on the thermal overload protector (3).

If continuity is present as described, the thermal overload protector is operating properly. If continuity is not present as described, replace the thermal overload protector.

49179 110613

SERVICE (CONT.)

Compressor (Cont.)

Removal and Replacement: Compressor Start Relay: Refer to FIG. 12

1. Remove the terminal cover (4)

2. Disconnect the wires from the compressor start relay.

3. Pull relay (1) off of the compressor pins and discard.

4. Push new relay onto the compressor pins.

5. Refer to Fig. 26 and reconnect the wires.

6. Reinstall terminal cover (4).

Compressor Thermal Overload Protector: Refer to

FIG. 12

1. Remove terminal cover (4).

2. Disconnect the BLU/BLK wire of the harness from the thermal overload protector.

3. Disconnect the BLK wire from the Compressor’s upper terminal.

4. Remove overload protector (3) and start relay as an assembly.

5. Remove overload protector (3) and discard overload protector.

6. Install new overload protector (3) on to the relay (1).

7. Install relay (1) and overload protector (2) on the compressor terminal bracket.

8. Refer to Fig. 27 and reconnect the thermal overload protector wires.

9. Reinstall terminal cover (4).

1. Disconnect the tubes from the condenser and the accumulator.

2. Disconnect the compressor wiring harness from the dispenser main wiring harness.

3. Remove the four .25-20 keps nuts and washers securing the compressor to the chassis. Set nuts and washers aside for reassembly.

4. Disconnect and remove the transformer.

BLU/BLK

GRN

WHI

FIG. 13 RELAY TERMINALS

Plugs into Relay

FIG. 14 THERMAL OVERLOAD PROTECTOR

TERMINALS

5. From the right side of the dispenser lift the compressor assembly over the four studs in the chassis and remove compressor.

6. Install new compressor over the four studs in the dispenser chassis with the ﬁll valve to the right side of the dispenser.

7. Secure compressor to the dispenser chassis using four .25-20 keps nuts and washers.

8. Reconnect tubes from the condenser and the accumulator to the compressor.

9. Reinstall transformer.

10. Evacuate the system.

11. Recharge 120V and 230V system with:

JDF-2S - 9 oz. Type R134A refrigerant. Design Pressures: High 255 - Low 36 psi JDF-4S & 4D - 10 oz. Type R134A refrigerant. Design Pressures: High 335 - Low 88 psi

49179 110613

SERVICE (CONT.)

Compressor (JDF-4SB)

P1684.40

FIG. 15 COMPRESSOR

Location: The compressor is located at the top of the dispenser

frame.

230V shown

1 3 2 4

Test Procedures: Compressor Start Relay: Refer to FIG. 16 WARNING: The compressor capacitor must be properly discharged before proceeding. This is most commonly done on low voltage capacitors by shorting across the terminals with a screwdriver.

1. Disconnect the dispenser from the power source.

2. Remove compressor terminal cover retainer (4).

3. Connect a voltmeter across the white wire and the

blue/black wire. Connect the dispenser to the power

source. The indication must be: (a) 120 volts ac for two wire 120 volt models or (b) 230 volts ac for two wire 230 volt models.

5. Disconnect the dispenser from the power source. If voltage is present as described, proceed to the following test procedures. If voltage is not present as described, refer to the Con- tactor and check the contactor.

6. Disconnect the two black wires from the compres-

sor start relay.

7. Remove relay from the compressor.

8. Check for continuity across the upper left terminal

and the right pin socket on the rear of the relay. If continuity is present as described, the compressor start relay is operating properly. If continuity is not present as described, replace relay.

5 6

FIG. 16 COMPRESSOR THERMAL

OVERLOAD PROTECTOR LOCATION

1. Compressor Start Relay

2. Wiring Harness Strain Relief

3. Thermal Overload Protector

4. Compressor Terminal Cover

5. Cable 230V only

6. Capcitor 230V only

7. Cover, Capacitor 230V only

P4068

Compressor:

1. With the compressor start relay (1) removed, dis-

connect the black wire from the compressor.

2. Check for continuity across the terminal on the

compressor and the left pin on the compressor. If continuity is present as described, the electrical part of the compressor is operating properly. If continuity is not present as described, replace the compressor.

Thermal Overload Protector:

1. Check for continuity across the terminals on the

thermal overload protector (3). If continuity is present as described, the thermal overload protector is operating properly. If continuity is not present as described, replace the thermal overload protector.

49179 110613

SERVICE (CONT.)

Compressor (Cont.)

Removal and Replacement: Compressor Start Relay: Refer to FIG. 16

1. Remove the terminal cover (4)

2. Disconnect the wires from the compressor start relay.

3. Pull relay (1) off of the compressor pins and discard.

4. Push new relay onto the compressor pins.

5. Refer to Fig. 16 and reconnect the wires.

6. Reinstall terminal cover (4).

Compressor Thermal Overload Protector: Refer to

FIG. 16

1. Remove terminal cover (4).

2. Disconnect the WHI/ORN wire of the harness from the thermal overload protector.

3. Disconnect the BLK wire from the Compressor’s upper terminal.

4. Remove overload protector (3) and start relay as an assembly.

5. Remove overload protector (3) and discard overload protector.

6. Install new overload protector (3) on to the relay (1).

7. Install relay (1) and overload protector (2) on the compressor terminal bracket.

8. Refer to Fig. 17 and reconnect the thermal overload protector wires.

9. Reinstall terminal cover (4).

1. Disconnect the tubes from the condenser and the accumulator.

2. Disconnect the compressor wiring harness from the dispenser main wiring harness.

3. Remove the four .25-20 keps nuts and washers securing the compressor to the chassis. Set nuts and washers aside for reassembly.

BLU/BLK

GRN

WHI

BLU from Capacitor

BRN from Capacitor

FIG. 17 RELAY TERMINALS

Plugs into Relay

FIG. 18 THERMAL OVERLOAD PROTECTOR

TERMINALS

4. Disconnect and remove the transformer.

5. From the right side of the dispenser lift the compressor assembly over the four studs in the chassis and remove compressor.

6. Install new compressor over the four studs in the dispenser chassis with the ﬁll valve to the right side of the dispenser.

7. Secure compressor to the dispenser chassis using four .25-20 keps nuts and washers.

8. Reconnect tubes from the condenser and the accumulator to the compressor.

9. Reinstall transformer.

10. Evacuate the system.

11. Recharge 120V and 230V system with:

JDF-4SB - 10 oz. Type R134A refrigerant. Design Pressures: High 335 - Low 88 psi

49179 110613

SERVICE (CONT.)

Compressor Switch (all Models)

JDF-4S shown

FIG. 19 COMPRESSOR SWITCH

Removal and Replacement:

1. Disconnect the dispenser from the power source.

2. Remove the cover or splash panel to gain access

to the switch.

3. Gently disconnect the wiring harness from the

switch.

4. Remove the switch from the mounting bracket and

discard.

5. Install the new into the mounting bracket.

6. Reconnect the wiring harness to the new switch.

7. Install covers or panels previously removed.

8. Reconnect power to the dispenser.

P1684.40

Location: On models JDF-2S and 4S, early models had the switch

located on the back of the dispenser next to the water inlet. On later models JDF-2S, 4S, 4D and 4SB, the switch is located on the front left of the dispenser behind the splash panel.

Test Procedure:

1. Disconnect the dispenser from the power source.

2. Remove the two wires from the switch terminals.

3. Check for continuity across the switch terminals with the switch in the “ON” position. Continuity must not be present when the switch is in the “OFF” position.

If continuity is present as described, reconnect the wires to the switch terminals. If continuity is not present as described, replace the switch.

RED/BLK

BLK

P1219

FIG. 20 COMPRESSOR SWITCH TERMINALS

49179 110613

SERVICE (CONT.)

Condenser Fan (all Models)

JDF-4S shown

Removal and Replacement:

1. Disconnect the dispenser from the power source.

2. Remove the four screws attaching the fan and cover assembly to the refrigeration cabinet.

3. Gently pull the cover assembly forward and disconnect the 2-pin connector from the fan to the main harness.

4. Remove the fan from the cover assembly and discard.

5. Install the new fan onto the cover assembly.

6. Reconnect the wiring harness to the new fan.

7. Install fan and cover assembly using four screws previously removed.

8. Reconnect power to the dispenser.

P1684.40

FIG. 21 CONDENSER FAN

Location: The condenser fan is located inside the main frame

below the compressor assembly.

Test Procedure:

1. Disconnect the dispenser from the power source.

2. Disconnect the 2-pin from the fan to the main wiring harness.

3. Check for continuity across the fan terminals.

If continuity is present as described, reconnect the wires to the fan terminals. If continuity is not present as described, replace the fan.

BLU/BLK

WHI

FIG. 22 CONDENSER FAN TERMINALS

P1219

49179 110613

SERVICE (CONT.)

Control Board, Main (all Models)

JDF-4S shown

P3250.25

FIG. 23 CONTROL BOARD

Location: The Main Control Board is located on the electrical component enclosure behind the splash panel.

Removal and Replacement:

1. Remove the four #6-32 screws securing the control board to the component bracket.

2. Disconnect all the plugs on the main wiring harness from the connectors on the control board.

3. Remove the spacers from the control board and discard.

4. Install the spacers on to the new control board

5. Reconnect all plugs on the main harness to the connectors on the control board.

6. Install new control board on the component bracket using four #6-32 screws.

NOTE: Verify all ground wires are connected to the grounding stud and secured with nuts.

Test Procedure: Power Supply Circuitry:

1. Disconnect the dispenser from the power source.

2. With a voltmeter, back probe check the voltage across pins 1 & 3 of the J6 connector on the wiring 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 present as described, proceed to step 4. If voltage is not present as described, refer to the Wiring Diagrams and check the dispenser wiring harness back to the transformer (See TRANSFORMER).

4. Disconnect the dispenser from the power source.

5. With a voltmeter, back probe check the voltage across pins 1 & 3 of the J12 connector on the wiring harness. Connect the dispenser to the power source. The indication must be 24 volts ac.

6. Disconnect the dispenser from the power source.

JDF-4S

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

JDF-2S

FIG. 24 CONTROL BOARD CONNECTORS

49179 110613

SERVICE (CONT.)

Portion Control Board (JDF-2S,4S)

P4034.25

FIG. 25 PORTION CONTROL BOARD

Location: The Portion Control Board is located inside the door cover mounted on the bracket.

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.

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 wiring 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 Cold Water Switch J-2 Left Left Dispense Switch J-3 Left Middle Dispense Switch J-4 Right Middle Dispense Switch J-5 Right Right Dispense Switch J-6 Main Harness J-7 N/A J-8 N/A J-9 N/A

J-8

J-6

J-5

J-1

J-4

J-3

J-2

J-7

J-9

FIG. 26 CONTROL BOARD CONNECTORS

49179 110613

SERVICE (CONT.)

Push Button Control Board (JDF-4D)

FIG. 27 PUSH BUTTON CONTROL BOARD

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.

POWE

ING

L O O

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

P4081.25

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

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 wiring 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

J-7

J-9

J-11

J-10

J-6

FIG. 28 CONTROL BOARD CONNECTORS

49179 110613

SERVICE (CONT.)

Portion Control Board (JDF-4D)

POWE

ING L O

O C

P4081.25

FIG. 29 PORTION CONTROL BOARD

Location: The Portion Control Board is located inside the door cover mounted on the bracket.

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.

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 wiring 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 Cold Water Switch J-2 Left Left Dispense Switch J-3 Left Middle Dispense Switch J-4 Right Middle Dispense Switch J-5 Right Right Dispense Switch J-6 Main Harness J-7 N/A J-8 N/A J-9 N/A

J-7

J-8

J-6

J-5

J-1

J-4

J-3

J-2

J-9

FIG. 30 CONTROL BOARD CONNECTORS

49179 110613

SERVICE (CONT.)

Circulation Pump (all Models)

FIG. 31 CIRCULATION PUMP

Removal and Replacement:

1. Remove dispense platform(s) for ease of taking out recirculating pump.

2. Remove left and right side panels.

3. Remove silicone condensation hose out of bath tank along side recirculating pump.

4. Disconnect pump motor and condenser fan wires (1/4” spade terminals).

5. Remove 2 screws left and right side of the condenser mounting bracket. Remove condenser fan assembly out the right side of the machine.

6. Release recirculating pump holding bracket right side (2 nuts).

7. Lift up on recirculating pump and maneuver out the right side of the machine

Location: The Circulation Pump is located on top of the water bath tank cover.

Test Procedure:

1. Disconnect the dispenser from the power source.

2. With a voltmeter .

RED/BLK to Compressor Switch

WHI to Transformer

P3250.25

FIG. 32 CIRCULATION PUMP

49179 110613

SERVICE (CONT.)

Dispense Platform Switch (all Models)

JDF-2S shown

FIG. 33 DISPENSE PLATFORM SWITCH

Removal and Replacement:

1. Disconnect the dispenser from the power source.

2. Loosen the two #8-32 screws securing the component 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 dispenser base and secure with two #8-32 screws.

8. Return power to the dispenser.

BLK to J5-3

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.

BLK to J5-4

P1640

FIG. 34 SWITCH TERMINALS

49179 110613

SERVICE (CONT.)

Dispense Pump (all Models except JDF-4D)

FIG. 35 DISPENSE PUMP

5. Install the new pump tube around the rotor and position into the rear housing with the clamp resting on the top edge.

6. Install the front housing to be ﬂush with the rear housing.

7. Position the pump assembly back on the platform and secure with four #8-32 x 2.45 screws previously removed.

8. Repeat for remaining pumps.

Location: The Dispense Pumps are located on the platform assembly.

Removal, Inspection, and Replacement:

1. Loosen the four #8-32 x 2.45 screws securing the pump assembly to the platform.

2. Pry the two halves of the pump housing apart to reveal the pump tube and the rotor.

3. Inspect the pump tubing for signs of wear and replace every six months or as needed.

4. Inspect the pump rotor for signs of wear and replace if necessary.

P1640

FIG. 36 DISPENSE PUMP COMPONENTS

49179 110613

SERVICE (CONT.)

Dispense Motor (all Models)

FIG. 37 DISPENSE MOTOR

Removal and Replacement:

1. Disconnect the two wires from the dispense motor.

2. Loosen the four #8-32 screws securing the motor to the platform assembly and remove the motor.

3. Inspect the gasket and rubber bushings for signs of wear and replace if necessary.

4. Position the new motor into place with the gasket and bushings onto the platform. Secure with four #8-32 screws previously removed.

5. Reconnect the two wires to the motor as shown in Fig. 38.

Location: The Dispense Motors are located on the rear of the platform assembly.

Test Procedure:

1. Disconnect the dispenser from the power source.

2. With a voltmeter, check the voltage across the two wire terminals of the motor assembly. 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 present as described, replace the motor. If voltage is not present as described, refer to the Wiring Diagrams and check the dispenser wiring harness back to the transformer (See TRANSFORMER).

FIG. 38 DISPENSE MOTOR CONNECTORS

49179 110613

SERVICE (CONT.)

Dispense Valve (all Models)

FIG. 39 DISPENSE VALVE

Removal and Replacement:

1. Disconnect the two wires from the dispense valve.

2. Remove the #6-32 screw and plate securing the water manifold tube to the valve.

3. Loosen the two #6-32 screws securing the valve to the platform assembly and remove the valve.

4. Install the new valve onto the platform and secure with two #6-32 screws previously removed.

5. Inspect the o-ring on the manifold tube connector for signs of wear and replace if necessary.

6. Connect the water manifold tube to the valve and secure in place with the plate and #6-32 screw previously removed.

7. Reconnect the two wires to the valve as shown in Fig. 40.

Location: The Dispense Valves are located at the front of the platform assembly.

Test Procedure:

1. Disconnect the dispenser from the power source.

2. With a voltmeter, check the voltage across the two wire terminals of the valve solenoid. 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 present as described, replace the valve. If voltage is not present as described, refer to the Wiring Diagrams and check the dispenser wiring harness back to the transformer (See TRANSFORMER).

Dispense Station

#1 WHI/VIO

Dispense Station

#2 WHI/ORN

Dispense Station

#3 WHI/VIO

Dispense Station

#4 WHI/ORN

YEL to Control Board

P3503

FIG. 40 DISPENSE VALVE CONNECTORS

49179 110613

SERVICE (CONT.)

Dispense Switches (JDF-2S, JDF-4S)

FIG. 41 DISPENSE SWITCHES

Removal and Replacement:

1. Disconnect the dispenser from the power source.

2. Remove the ﬁve screws attaching the dispenser door cover to the door and move the door cover to gain access to the switches.

3. Disconnect the wires on the dispense switch to be removed from the door wiring harness.

4. Compress the clips inside the door on the dispense switch and gently push the switch through the opening.

5. Push new switch into the opening and spread the clips to hold the switch in the door.

6. Reconnect the wires to the dispense switch from door wiring harness.

7. Reinstall the door cover and secure with the ﬁve screws previously removed.

8. Refer to Fig. 42 when reinstalling wires.

Location: The dispense switches are located on the lower outside of the dispenser door.

Test Procedure:

1. Disconnect the dispenser from the power source.

2. Remove the ﬁve screws attaching the dispenser door cover to the door and move the door cover to gain access to the switches.

3. With a voltmeter, check the voltage across the two wires for each dispense switch. Connect the dispenser to the power source. The indication must be +5 volts dc.

If voltage is present as described, proceed to #4. If voltage is not present as described, refer to the Wiring Diagrams and check the dispenser wiring harness.

4. Check for continuity across the terminals (top right to top left) of the dispense switch with the switch in the “ON” position. Continuity must not be present when the switch is in the “OFF” (released) position.

BLK

RED

BLK

GRN

Station #2

BLK

ORN

Station #1

BLK

YEL

Station #3

FIG. 42 DISPENSE SWITCH TERMINALS

Station #4

P1449

If continuity is present as described, reconnect the door wiring harness, the switch is operating properly. If continuity is not present as described, replace the switch.

49179 110613

SERVICE (CONT.)

Cold Water Dispense Switch (JDF-4S only)

FIG. 43 COLD WATER DISPENSE SWITCH

Removal and Replacement:

1. Disconnect the dispenser from the power source.

2. Remove the ﬁve screws attaching the dispenser door cover to the door and move the door cover to gain access to the switches.

3. Disconnect the wires on the dispense switch from the door wiring harness.

4. Compress the clips inside the door on the dispense switch and gently push the switch through the opening.

5. Push new switch into the opening and spread the clips to hold the switch in the door.

6. Reconnect the wires to the dispense switch from door wiring harness.

7. Reinstall the door cover and secure with the ﬁve screws previously removed.

8. Refer to Fig. 44 when reinstalling wires.

Location: The cold water dispense switch is located on the lower outside of the dispenser door.

Test Procedure:

1. Disconnect the dispenser from the power source.

2. Remove the ﬁve screws attaching the dispenser door cover to the door and move the door cover to gain access to the switch.

3. With a voltmeter, check the voltage across the two wires for the dispense switch. Connect the dispenser to the power source. The indication must be +5 volts dc.

If voltage is present as described, proceed to #4. If voltage is not present as described, refer to the Wiring Diagrams and check the dispenser wiring harness.

BLK

BLU

P1449

FIG. 44 COLD WATER SWITCH TERMINALS

If continuity is present as described, reconnect the door wiring harness, the switch is operating properly. If continuity is not present as described, replace the switch.

49179 110613

SERVICE (CONT.)

Dispense Membrane Switch (all Models)

COLD WATER

FIG.45 MEMBRANE SWITCHES

Location: The dispense buttons are located on the lower

outside of the dispenser door and actuate switches on the dispense switch board located on the inside of the door.

Removal and Replacement:

1. Disconnect the dispenser from the power source.

2. Open the dispenser door.

3. Remove the four #8-32 screws securing the lower door panel and remove the panel.

4. Disconnect the six pin harness from the switch board.

5. Carefully peel the membrane switch from the front of the switch bezel.

6. Remove any excess adhesive from the bezel surface.

7. Remove the backing from the new membrane switch.

8. Feed the membrane switch harness through the openning and apply the new membrane switch to the switch bezel.

9. Connect the switch harness to the control board.

Test Procedures: NOTE: Before continuing, check that the ribbon cable is properly connected to the control board and not a pin off in either direction.

1. Disconnect the dispenser from the power source.

2. Remove the rear panel and disconnect ribbon cable.

3. Check for continuity of the switches using pin #1as common.

#1 Common #2 ON/STOP #3 Large #4 Medium #5 Small

If continuity is not present when the appropriate switch is pressed, the Membrane Switch must be replaced. If continuity is present, chech the short harness going to J6 on the Control Board.

PORTION CONTROL

FIG. 46 MEMBRANE SWITCH

49179 110613

SERVICE (CONT.)

Cold Water Dispense Membrane Switch (all Models)

COLD WATER

FIG.47 MEMBRANE SWITCHES

Location: The dispense buttons are located on the lower

outside of the dispenser door and actuate switches on the dispense switch board located on the inside of the door.

Removal and Replacement:

1. Disconnect the dispenser from the power source.

2. Open the dispenser door.

3. Remove the four #8-32 screws securing the lower door panel and remove the panel.

4. Disconnect the three pin harness from the switch board.

5. Carefully peel the membrane switch from the front of the switch bezel.

6. Remove any excess adhesive from the bezel surface.

7. Remove the backing from the new membrane switch.

8. Feed the membrane switch harness through the openning and apply the new membrane switch to the switch bezel.

9. Connect the switch harness to the control board.

Test Procedures: NOTE: Before continuing, check that the ribbon cable is properly connected to the control board and not a pin off in either direction.

1. Disconnect the dispenser from the power source.

2. Remove the rear panel and disconnect ribbon cable.

3. Check for continuity of the switches using pin #1as common.

#1 Common #2 Cold Water

If continuity is not present when the appropriate switch is pressed, the Membrane Switch must be replaced. If continuity is present, chech the short harness going to J6 on the Control Board.

COLD WATER

COLD WATER DISPENSE

FIG. 48 MEMBRANE SWITCH

49179 110613

SERVICE (CONT.)

EMI Filter (all Models)

FIG. 49 EMI FILTER

JDF-4S shown

Removal and Replacement:

1. Disconnect the wires from the EMI Filter.

2. Remove the two #8-32 screws and nuts securing the EMI Filter.

3. Remove and discard EMI Filter.

4. Install new EMI Filter using two #8-32 screws and nuts to secure EMI Filter to its former location.

5. Refer to Fig. 50 when reconnecting the wires.

Location: The EMI Filter is located on the electrical component mounting bracket on the lower front of the dispenser behind the splash panel.

Test Procedure:

1. Disconnect the dispenser from the power source.

2. Disconnect the two black wires and two white wires on the EMI Filter from the power cord and the main wiring harness.

3. Check for resistance between the two black leads on the EMI Filter.

If resistance is present as described the EMI Filter is operating properly. If resistance is not present as described, replace the EMI Filter.

118.0 kΩ - 118.5 kΩ Across either pair

FIG. 50 EMI FILTER CONNECTORS

49179 110613

SERVICE (CONT.)

Lamps, Holders and Ballast(s) (Early Models)

Removal and Replacement:

1. Disconnect the dispenser from the power source.

2. Remove the ﬁve #10-32 screws securing the door cover to the door and move the cover aside to gain access to the light panel.

3. Rotate the lamp to remove from the lamp holders.

4. Pry the lamp holder from light panel.

5. Cut the two wires from the ballast as close the lamp holder as possible and remove the lamp holder.

6. Strip the ends of the wires from the ballast and install the into the new lamp holder.

7. Snap the new lamp holder into the holes on the light panel.

8. Replace the lamps and install the door cover using the ﬁve screws previously removed.

FIG. 51 LAMPS & HOLDERS

Location: The lamps and lamp holders are located on the door light panel behind the door cover.

Test Procedure:

1. Disconnect the dispenser from the power source.

2. Remove the ﬁve #10-32 screws securing the door cover to the door and move the cover aside to gain access to the light panel.

3. Rotate the lamp to remove from the lamp holders.

4. Check for continuity across terminals on each end of the lamp.

If continuity is present as described, continue to step 5. If continuity is not present as described replace the lamp.

5. Check for 24VDC supplied to ballast (dual ballast black to red, single ballast white to red).

FIG. 52 LAMP HOLDERS

If voltage is present as described, replace ballast. If voltage is not present as described, refer to the Wiring Diagrams and check the wiring harness back to the transfomer/rectiﬁer.

49179 110613

SERVICE (CONT.)

LED Lamps (JDF-2S, JDF-4S)

LED regulator board

FIG. 53 LED DOOR LIGHTS

Removal and Replacement:

1. Disconnect power from the dispenser.

2. Remove the ﬁve #6-32 screws securing the door cover to the door.

3. Carefully lower the door cover and disconnect the lamp terminals from the LED regulator board.

4. Remove and discard the faulty LED board.

5. Install a new LED regulator board exposing the adhesive backing.

6. Refer to Fig. 54 and reconnect wires to the LED regulator board.

7. Replace the door cover and secure with the ﬁve #6-32 screws.

8. Return power to the dispenser.

Location:

The LED door lights are located inside the dispenser

door.

Test Procedures: No illumination at all: First verify that the dispense

lockout switch has not been turned off!

1. Disconnect power from the dispenser.

2. Check the voltage across the black and red leads ofJ2 or J3 at the LED regulator board with a voltmeter. Reconnect power to the dispenser. The indication must be 24 volts dc.

3. Disconnect power from the dispenser.

If voltage is present as described, the LED regulator board is working correctly. If voltage is not present as described, go to step 4.

4. Check for supply voltage (unregulated +30VDC) across brown wire and white wire at J1 of the regulator board. (FIG 54).

White to brown

unregulated +30VDC

FIG. 54 LED DOOR LIGHT WIRING

If voltge is present as described, replace LED regulator board. If voltage is not present as described, check the wiring back to the main CBA.

49179 110613

SERVICE (CONT.)

Rectiﬁer (JDF-2S, JDF-4S)

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

FIG. 56 RECTIFIER TERMINALS

49179 110613

SERVICE (CONT.)

Relay (all Models)

4. Disconnect the blue/black wire and the red/black wires from relay terminals #4 and #6.

5. Connect the dispenser to the power source.

6. Turn on power and check for continuity across terminals on relay.

If continuity is present as described, disconnect the dispenser from power source and reconnect wires to terminals #4 and #6, the relay is working. If continuity is not present as described, do the same continuity test across terminals #2 and #8. If continuity is present between terminals #2 and #8, reconnect wires to terminals #4 and #6 instead of #2 and #8. If continuity is not present as described, replace the relay.

FIG. 57 RELAY

Location:

The relay (or contactor) is located inside the dispenser chassis on the lower outside of the component bracket.

Test Procedures:

1. Disconnect the dispenser from the power source.

2. With a voltmeter, check the voltage across the white

wire and the white/black wire. Connect the dispenser

to the power source. The indication must be: a) 120 volts ac for 120 volt models. b) 230 volts ac for 230 volt models.

3. Disconnect the dispenser from the power source.

If voltage is present as described, proceed to #4. If voltage is not present as described, refer to the Wiring Diagram and check the dispenser wiring harness. If harness has continuity, replace Control Board.

Removal and Replacement:

1. Disconnect the wires from the relay.

2. Remove the two #8-32 locking screws securing the relay and mounting bracket to the chassis. Remove and discard relay.

3. Install the new relay to the mounting bracket and then on the chassis using two #8-32 locking screws.

4. Refer to Fig. 58 to reconnect the wires.

Terminal #0 WHI from Main Harness

Terminal #2

Terminal #4

Terminal #1 BLK from Main Harness

Terminal #8 BLK from Main Harness

Terminal #6 WHI/ORN from Main Harness

FIG. 58 RELAY TERMINALS

49179 110613

SERVICE (CONT.)

Resistor (all 230V Models)

FIG. 59 RESISTOR

Removal and Replacement:

1. Disconnect the dispenser from the power source.

2. Disconnect the resistor from the relay and discard.

3. Install new resistor to the relay as shown below.

4. Return power to the dispenser.

Location: The resistor is located on the relay at 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 resistor from the relay.

3. Check the resistance across the terminals of the resistor with a ohmmeter. The indication must be approximately 36k ± 5%.

4. Disconnect the dispenser from the power source.

If resistance is present as described, the resistor is operating properly. If resistance is not present as described, replace the resistor.

P3864

FIG. 60 RESISTOR TERMINALS

49179 110613

SERVICE (CONT.)

Solenoid - Cold Water (JDF-4S only)

FIG. 61 COLD WATER DISPENSE SOLENOID Location: The Cold Water dispense solenoid is located at the inside rear of the chassis frame.

Test Procedures:

1. Disconnect the dispenser from the power source.

2. Disconnect the two wires from the solenoid valve.

Press the Cold Water dispense switch on front of the door.

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

wires. Connect the dispenser to the power source. The indication must be:

a) 120 volts ac for two wire 120 volt models, three

wire 120/208 volt, and 120/240 volt models. b) 240 volts ac for two wire 240 volt models. c) 230 volts ac for two wire 230 volt models.

4. Disconnect the dispenser from the power source.

6. Check the solenoid valve for coil action. Connect the dispenser to the power source. Press the Cold Water dispense switch and listen carefully in the vicinity of the solenoid valve for a “clicking” sound as the coil magnet attracts.

7. Disconnect the dispenser from the power source.

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

Removal and Replacement:

1. Disconnect the dispenser from the power source.

2. Turn off the water supply to the dispenser.

3. Remove the two wires from the solenoid valve.

4. Disconnect the water line from the solenoid valve.

5. Remove the #10-32 screws securing the solenoid valve to the chassis frame. Remove solenoid valve.

6. Using the #10-32 screws install new solenoid valve to the chassis frame.

7. Reconnect the water lines to solenoid valve.

8. Refer to schematic wiring diagrams when reconnecting the wires.

WHI/VIO to Control Board

If voltage is present as described, proceed to #5 If voltage is not present as described, refer to Wiring Diagrams and check dispenser wiring harness.

5. Check for continuity across the solenoid valve coil terminals.

If continuity is present as described, reconnect the two wires to the solenoid. If continuity is not present as described, replace the solenoid valve.

WHI to Control Board

FIG. 62 COLD WATER SOLENOID

TERMINALS

49179 110613

SERVICE (CONT.)

Solenoid - Inlet (all Models)

P1445.40

FIG. 63 INLET SOLENOID VALVE

Location: The inlet solenoid is located inside on the rear of

the dispenser base.

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

Removal and Replacement:

1. Remove the two wires from the solenoid valve.

2. Turn off the water supply to the dispenser.

3. Disconnect the water lines to and from the solenoid valve.

4. Remove the two #8-32 screws securing the solenoid to the dispenser base. Remove solenoid.

5. Install new solenoid valve on the dispenser base and secure with the two #8-32 screws.

6. Securely fasten the water lines to and from the solenoid valve.

7. Refer to Schematic Wiring Diagrams when reconnecting the wires.

Test Procedures:

1. Disconnect the dispenser from the power source.

2. Disconnect the two wires from the solenoid valve.

3. Check for continuity across the solenoid valve coil terminals.

If continuity is present as described, reconnect the two wires to the solenoid. If continuity is not present as described, replace the solenoid valve.

4. Check the solenoid valve for coil action. Connect the dispenser to the power source. Listen carefully in the vicinity of the solenoid valve for a “clicking” sound as the coil magnet attracts.

5. Disconnect the dispenser from the power source.

BRN to Control Board

WHI to Control Board

120V 1.2 kΩ

230V 3.84 kΩ

FIG. 64 INLET SOLENOID VALVE TERMINALS

P1217

49179 110613

SERVICE (CONT.)

Temperature Probe (all Models)

Removal and Replacement:

1. Disconnect the dispenser from the power source.

2. Remove the top rear cover.

3. Disconnect the two pin connector from the dispenser main wiring harness.

4. Remove the temperature probe by ﬁrmly pullingup on the tube at the tank lid. This will disengage the grommet from the tank lid.

5. Slide a new grommet on to the new temperature probe.

6. Insert the temperature probe through the hole in the tank lid and press the grommet ﬁrmly and evenly so that the groove in the grommet ﬁts into the tank lid.

7. Reconnect the two pin connector to the dispenser main wiring harness.

FIG. 65 TEMPERATURE PROBE

Location: The temperature probe is located on the top of the tank assembly.

Test Procedure:

1. Disconnect the dispenser from the power source.

2. Remove the top rear cover.

3. With a voltmeter, back probe the connector from the temperature probe.

4. Connect the dispenser to the power source.

5. See the chart for voltage readings.

6. For continuity check, disconnect the dispenser from the power source.

7. Disconnect the two pin connector from the dispenser main wiring harness.

8. With an ohmmeter, check for continuity across the pins for the black and white wires.

9. See the chart for resistance/voltage readings. Alternate check: Leave two pin connector plugged in, place dc voltmeter across two pin connector in parallel, check voltage with dispenser running.

10. Verify wiring to probe.

11. If readings are not present as described, replace the temperature probe.

NOTE: Some meters have difﬁculty measuring a sensor either rapidly rising or falling in temperature.

BLKor ORN pin 1

WHI pin 2

FIG. 66 TEMPERATURE PROBE

TEMP RESISTANCE VOLTAGE

SHORTED 0 Ω 0VDC

32° F 31.2k - 34k Ω 3.0VDC

0.0° C

77° F 9.8k - 10.2k Ω 1.5VDC

25.0° C

OPEN INFINITE 5.0VDC

NOTE: ALL FIGURES LISTED ABOVE ARE APPROXIMATE.

49179 012214

SERVICE (CONT.)

Temperature Sensor (all Models)

FIG. 67 TEMPERATURE SENSOR

Location:

The Temperature Sensor is located inside the cabinet

between the fan and the water coil.

Test Procedures:

1. Remove the left side housing panel.

2. Connect a voltmeter across the two leads of the

temperature sensor (leave plug connected); The indication must be: a) Approx. 1.4 vdc @ 71° F b) Approx. 2.6 vdc @ 32° F

Removal and Replacement:

1. Remove the left side housing panel.

2. Disconnect the plug on the temperature sensor leads from the connector on the dispenser main harness.

3. Open the cabinet door and remove the product containers.

4. Remove the cabinet fan and fan guard assembly.

5. Clip off the connector and pull the temperature sensor from the top left rear of the cabinet and discard.

6. Push new temperature sensor wires into the grommet at the top left rear of the cabinet and secure to sensor mounting clip.

7. Refer to Fig. 68 and connect the wires to the new plug.

8. Connect the sensor plug to the connector from the main harness.

9. Reinstall the cabinet fan and guard assembly.

10. Reinstall the left side housing panel.

1. BLK to GRY J7-1 (Control Board) Positive

2. BLK to WHI/BLK J7-2 (Control Board) Negative

If voltage reading is 0v, the Control Board is not supplying the necessary 5v and should be replaced. If the reading stays at 5vdc, replace sensor.

Alternate Test:

2. Disconnect the plug on sensor leads and check resistance as indicated in chart.

If resistance reading is not within the range listed in chart, replace sensor.

2 1

FIG. 68 TEMPERATURE SENSOR

TEMP RESISTANCE VOLTAGE

SHORTED 0 Ω 0VDC

32° F 1.5k Ω 2.5VDC 0° C

77° F 350 Ω 1.1VDC

25.0° C

OPEN INFINITE 5.0VDC

NOTE: ALL FIGURES LISTED ABOVE ARE APPROXIMATE.

49179 020514

SERVICE (CONT.)

Transformer (all Models)

P3864

FIG. 69 TRANSFORMER

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

Test Procedure:

1. Disconnect the dispenser from the power source.

2. Check the voltage across black wire and the white wire from the main harness. Connect the dispenser to power source. The indication must be:

a) 120 volts ac for two wire 120 volt models, three

wire 120/208 volt and three wire 120/240 volt models.

b) 240 volts ac for two wire 240 volt models. c) 230 volts ac for two wire 230 volt models.

4. Disconnect the dispenser from the power source.

Removal and Replacement:

1. Loosen the two #8-32 screws securing the component bracket to the dispenser housing base.

2. Pull component bracket out the front of the dispenser far enough so the transformer can be disconnected from the main wiring harness.

3 Remove the two #6-32 keps nuts securing the

transformer to the component bracket.

5. Remove and discard the transformer.

6. Install new transformer on the component bracket and secure with two #6-32 keps nuts.

7. Refer to Fig. 70 and connect the transformer to the main wiring harness.

8. Place the component bracket into position and tighten the two #8-32 screws.

WHI from

WHI/BLU to Control Board J6-1,J12-1

Power Cord

BLK from

Power Cord

If voltage is present as described, proceed to #5. If voltage is not present as described, refer to the Wiring Diagrams and check the main wiring harness.

5. Check the voltage between J6-1 and J6-3 at the control board. Connect the dispenser to the power source. The indication must be 24 volts ac.

If voltage is present as described the transformer is operating properly. If voltage is not present as described, replace the transformer.

BLU to Control

Board J6-3,J12-3

P1647

FIG. 70 TRANSFORMER TERMINALS

49179 110613

SERVICE (CONT.)

Transformer - Lited Doors (JDF-2S, JDF-4S)

P3864

FIG. 71 TRANSFORMER

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

Test Procedure:

1. Disconnect the dispenser from the power source.

2. Disconnect the four pin plug from the main harness

from the four pin connector on the transformer.

3 Check the voltage across black wire pin 1 and the

white wire pin 2 on the plug from the main harness. Connect the dispenser to power source. The indication must be:

a) 120 volts ac for two wire 120 volt models, three

wire 120/208 volt and three wire 120/240 volt

models. b) 240 volts ac for two wire 240 volt models. c) 230 volts ac for two wire 230 volt models.

4. Disconnect the dispenser from the power source.

Removal and Replacement:

1. Loosen the two #8-32 screws securing the component bracket to the dispenser housing base.

2. Pull component bracket out the front of the dispenser far enough so the transformer connector can be disconnected from the main wiring harness.

3 Disconnect the transformer four pin connector from

the four pin plug on the main wiring harness.

4. Remove the two #6-32 keps nuts securing the transformer to the component bracket.

5. Remove and discard the transformer.

6. Install new transformer on the component bracket and secure with two #6-32 keps nuts.

7. Connect the four pin connector on the transformer to four pin plug on the main wiring harness.

8. Place the component bracket into position and tighten the two #8-32 screws.

WHI/GRN - T8

WHI/BLK - T12

If voltage is present as described reconnect the plug and the connector and proceed to #5. If voltage is not present as described, refer to the Wiring Diagrams and check the main wiring harness.

5. Check the voltage between J3-5 and J3-6 on the six pin connector at the control board. Connect the dispenser to the power source. The indication must be 24 volts ac.

If voltage is present as described the transformer is operating properly. If voltage is not present as described, replace the transformer.

WHI - 120V T2, 240V T6

BLK - TI

P1647

FIG. 72 TRANSFORMER TERMINALS

49179 110613

1. Compressor Relay Q25

Triac Map

2. Station 2 Water Q27

3. Station 1 Water Q28

4. Station 1 Concentrate Q23

5. Station 2 Concentrate Q18

6. Station 3 Concentrate Q17

7. Station 4 Concentrate Q13

8. Station 3 Water Q7

9. Cold Water Valve Q11

10. Inlet Water Valve Q10

11. Station 4 Water Q8

49179 012214

WHI/GRN

BRN/WHI

A B

WHI

BLK

A B

MODELS

220-230V

120V

MODELS

BLU

NL1GND

BRN

EMI

A B

FILTER

GRN/YEL

A B

GRN

TRANSFORMER

BLK

WHI

OAD

TRANSFORMER

BLU

WHI/BLU

SCHEMATIC WIRING DIAGRAM JDF-2S

Models with Dual Dispense Option

ELECTRICAL SCHEMATIC DIAGRAM for JDF-2S

(Models with LED Lited Doors)

BLK

RED

BLK

RED

Models with Lited Doors

RIGHT

SWITCH

DISPENSE

BLK

WHI

BLK

REDRED

ORNORN

WHI/ORN

YEL YEL

SOL SOL

WHI/VIO

P C

J6-1

WHI/BLU

BOARD

J6-3

BLU

CABINET

THERMISTOR

WATER BATH

THERMISTOR

J12-1

WHI/BLU

Models with Mechanical Switches

J12-3

BLU

Models with Membrane Switches

BLK

WHI

OAD

BLU

WHI/BLU

WHI/BLK

RUN

MOTOR

COMPRESSOR

START

COMPRESSOR ASSY

LIMIT

THERM.

BLU/BLK

WHI

PTC

GRN/YEL-16

FAN

RED

BLK

SOL

VALVE

WATER INLET

WHI WHI

MOTOR

BLK

RED/BLK

REFRIGERATION

SWITCH

PUMP

RECIR.

WHI RED/BLK

BRN WHI

RED

J3-1

BRN WHI/BLK BLK WHI

WHI/VIO

GRN

WHI/VIO

WHI/RED

J3-2 J1-5

J1-1

RED

BLK or ORN

WHI

WHI/BLK

GRY

J7-1

J7-2

J9-1

J9-2

CONTROL

J2-1

J2-6

VIO

YEL

ORN

WHI/VIO

WHI/ORN

VIOVIO

WHI/ORNWHI/ORN

YELYEL

CONDENSOR FAN

RED/BLKBLU/BLK

ORN

RIGHT

DISPENSE

REDRED

PUMPPUMP

RIGHT

DISPENSE

VIO

LEFT

DISPENSE

LEFT

DISPENSE

BLU/BLK

ASSY

BLK

RED

BLK

J11-1

BLK

BLU

RED

J6-1

AUXILLARY

BLK

RED

J3-1

Board

Regulator

J2-1

BLK

RED

LEFT

SWITCH

DISPENSE

GRN or YEL

RED

BLK

J5-1

J8-2

J8-1

J11-5

YEL

ORN

J5-5

J6-5

J5-1

J1-3

J1-1

J4-5

J4-1

CONTROL BOARD

J3-5

J3-1

J2-5

J2-1

BRN

J1-1

WHI

Door

Ground

GRNGRN

WHIWHI

BRNBRN

Ground

SWITCH

PROGRAM

BLK

Chassis

Ground

Chassis

BLK

SWITCH

LOCKOUT

DISPENSE

YEL

GRN

BLK

J5-4

WHI

BLK

BRN BRN

SWITCH

LOCKOUT

DISPENSE

BLK

YEL

DISPENSE

STATION

PUSH BUTTON OPTION

STATIC

SHIELD

STATION

DISPENSE

STATIC

SHIELD

STATION

DISPENSE

STATIC

SHIELD

SMALL

MEDIUM

LARGE

STOP/PLUS

STATIC

SHIELD

SMALL

MEDIUM

LARGE

STOP/PLUS

120 VOLTS AC

2 WIRE

220-230 VOLTS AC

SINGLE PHASE

49179 110613

ELECTRICAL SCHEMATIC DIAGRAM for JDF-2S

(Models with Flourescent Lited Doors)

WHI

BLK

WHI/GRN

BRN/WHI

BLU

NL1GND

BRN

EMI

230V

MODELS

120V

MODELS

FILTER

GRN/YEL

GRN

TRANSFORMER

BLK

WHI

OAD

TRANSFORMER

BLU

WHI/BLU

SCHEMATIC WIRING DIAGRAM JDF-2S

Models with Dual Dispense Option

BLK

OAD

BLU

WHI

WHI/BLU

COMPRESSOR

COMPRESSOR ASSY

BLU/BLK

WHI

WHI WHI RED

BRN WHI

BALLAST

BLK

WHI

WHI WHI

12 12

BRN

RED

Ground

BALLAST

BLK

BALLAST

BLK

SWITCH

LOCKOUT

DISPENSE

120 VOLTS ACor230 VOLTS AC

2 WIRE

STATIC

SHIELD

STATION

DISPENSE

STATIC

SHIELD

STATION

DISPENSE

WHI GRN

DOOR

(Dual Ballast)

SWITCH

LOCKOUT

DISPENSE

WHI/BLK

WHI/GRN

RECTIFIER

BLK

WHI

TRANSFORMER

Ground

WHI/BLK

LINE

LOAD

WHI/GRN

BLU or BRN

HARNESS

WHI GRNGRN GRN

DOOR

(Single Ballast)

DOOR

BLK

WHI

BLU or BRN

Chassis

REDBLK

LEFT

RIGHT

SWITCH

J11-1

BLK

RED

BLK

RED

J6-1

AUXILLARY

DISPENSE

GRN or YEL

RED

J5-1

J11-5

YEL

BLU

ORN

BLU

YEL

ORN

J6-5

CONTROL BOARD

SWITCH

BLK

J5-4

J5-5

J5-1

J1-3

J1-1

J4-5

J4-1

J3-5

J3-1

J2-5

J2-1

DISPENSE

BLK

WHI

J2-6

RIGHT

LEFT

J9-2

REDRED

DISPENSE

CABINET

THERMISTOR

WHI

BLK

WATER BATH

THERMISTOR

Models with Mechanical Switches

BOA

P C

J6-3

J12-3

J6-1

J12-1

BLU

WHI/BLU

ORNORN

WHI/ORN

YEL YEL

SOL SOL

WHI/VIO

Models with Membrane Switches

FAN

RED

BLK

SOL

VALVE

WATER INLET

BRNWHI

BRN WHI/BLK BLK WHI

WHI/BLK

WHI

RUN

MOTOR

START

LIMIT

THERM.

BLK

SWITCH

REFRIGERATION

RED/BLK

PUMP

WHI/VIO

RECIR.

GRN

WHIRED/BLK

WHI WHI

MOTOR

CONDENSOR FAN

BLU/BLK

WHI

RED/BLKBLU/BLK

PTC

ASSY

GRN/YEL-16

WHI/VIO

ORN

PUMPPUMP

RIGHT

DISPENSE

REDRED

VIO

LEFT

DISPENSE

BLK

RED

WHI/RED

WHI/BLK

GRY

J3-1

J3-2

J7-1

J7-2

J9-1

J1-5

NTR

J1-1

J2-1

VIO

YEL

RED

ORN

WHI/VIO

WHI/ORN

VIOVIO

WHI/ORNWHI/ORN

YELYEL

Ground

Chassis

WHI WHI

BLU BLU

BLK BLK

RED WHI

Chassis

GRNBLK

Chassis

STATIC

SHIELD

SMALL

MEDIUM

STATION

DISPENSE

LARGE

STOP/PLUS

STATIC

SHIELD

SMALL

MEDIUM

STATION

DISPENSE

LARGE

STOP/PLUS

PUSH BUTTON OPTION

WHI

WHI WHI

SINGLE PHASE

49179 110613

BLU/BLK

LIMIT

THERM.

GRN/YEL-16

STATION 1 DISPENSE

WHI/VIO

SOL SOL

STATION 3 DISPENSE

WHI/VIO

SOL SOL

Models with Membrane Switches

J3-1

J2-1

J2-5

STATIC SHIELD

LARGE

SMALL

MEDIUM

STOP/PLUS

DISPENSE STATION

PUSH BUTTON OPTION

STATIC SHIELD

DISPENSE

DISPENSE STATION

120 VOLTS AC

220-230 VOLTS AC

2 WIRE

SINGLE PHASE

ELECTRICAL SCHEMATIC DIAGRAM for JDF-4S

SCHEMATIC WIRING DIAGRAM JDF-4S

COMPRESSOR ASSY

COMPRESSOR

MOTOR

RUN

START

PTC

ASSY

RED/BLKBLU/BLK

STATION 2 DISPENSE

REDRED

VIO

PUMPPUMP

STATION 2 DISPENSE

YEL YEL

STATION 4 DISPENSE

REDRED

VIO

PUMPPUMP

STATION 4 DISPENSE

YEL YEL

AUXILLARY

CONTROL BOARD

J4-1

J3-5

STATIC SHIELD

LARGE

SMALL

MEDIUM

STOP/PLUS

DISPENSE

STATION

STATIC SHIELD

DISPENSE

STATION

BLU/BLK

ORN

WHI/ORN

ORN

WHI/ORN

SMALL

J4-5

STATIC SHIELD

MOTOR

CONDENSOR FAN

J1-1

J1-3

STATIC SHIELD

DISPENSE

COLD WATER

SWITCH

STATIC SHIELD

DISPENSE

COLD WATER

SWITCH

WHI

WHI RED/BLK

WHI/VIO

J5-1

LARGE

MEDIUM

STOP/PLUS

DISPENSE

STATION

DISPENSE

STATION

J6-1

J6-5

(Models with LED Lited Doors)

120V

220-230V

MODELS

GRN

TRANSFORMER

BLU

WHI/BLU

TRANSFORMER

BLU

WHI/BLU

COLD WATER

BRN

BLK

WHI/BLK

CONTROL

P C BOARD

J8-2

J8-1

VALVE

WHI/VIO WHI

SOL

WATER INLET

VALVE

BRN WHI

SOL

RED

J3-1

WHI/RED

J1-5

J3-2

GRY

J7-1

WHI/BLK

J7-2

BLK or ORN

J9-1

WHI

J9-2

YEL

J15-1

ORN BLU

J15-4

GRN or GRY

J5-1

RED BLK

J5-4

WHI/BLK

WHI

REFRIGERATION

SWITCH

RED/BLK BLK

RECIR. PUMP

GRN

WHI/VIO

VIOVIO WHI/ORNWHI/ORN YELYEL

REDRED ORNORN

TAN

WHI/ORN

WHI/VIO

WHI/GRN

PNKVIO BLUWHI/ORN GRYYEL

WHI/GRNRED GRNORN

WHI/BLU

BLK RED BLU YEL ORN

WHI

WHI/VIO

J1-1

RED

J2-1

ORN

VIO

YEL

J2-6

J13-1

GRN

PNK GRY BLU TAN

J13-6

J6-1

BLU

J6-3

J12-1

BLU

J12-3

BLK

J11-1

RED BLU YEL

ORN

J11-5

A B

BLK

A B

WHI

BLK

WHI

RED BLK

WHI

BLK

WATER BATH THERMISTOR

Models with Mechanical Switches

BLK

J5-5

BLK

BRN

DISPENSE LOCKOUT

SWITCH

YEL

BLK

BRN

DISPENSE

YEL

LOCKOUT

SWITCH

STATIC SHIELD

SMALL

STATIC SHIELD

YEL

WHI

FAN

BLK

CABINET

THERMISTOR

BLK

Chassis Ground

GRN/YEL

PROGRAM

FILTER

A B

BLK

SWITCH

BRN

EMI

NL1GND

BLU

WHI

COLD WATER

DISPENSE

SWITCH

STATION 4 DISPENSE

SWITCH

STATION 3 DISPENSE

SWITCH

STATION 2 DISPENSE

SWITCH

STATION 1 DISPENSE

SWITCH

Chassis Ground

BLKBLU

ORNBLK

YELBLK

REDBLK

GRNBLK

Models with Lited Doors

WHIWHI BRNBRN GRNGRN

Door

Ground

RED

BLK

RED

Regulator

Board

RED

J2-1

BLK

RED BLK

RED

J3-1

BLK

J1-1

BRN

WHI

49179 110613

ELECTRICAL SCHEMATIC DIAGRAM for JDF-4S

(Models with Flourescent Lited Doors)

WHI

BLK

WHI

BLK

WHI

OAD

TRANSFORMER

BLU

WHI/BLU

BLU

NL1GND

BRN

EMI

230V

MODELS

120V

MODELS

FILTER

GRN/YEL

GRN

SCHEMATIC WIRING DIAGRAM JDF-4S

WHI

WHI/BLU

COMPRESSOR ASSY

MOTOR

COMPRESSOR

BLU/BLK

WHI

WHI WHI RED

BRN WHI

BALLAST

BLK

WHI

WHI WHI

SWITCH

LOCKOUT

DISPENSE

BLK

WHI

WHI/BLK

WHI/GRN

RECTIFIER

TRANSFORMER

Ground

WHI/BLK

LINE

LOAD

WHI/GRN

VIO or BRN

HARNESS

WHI GRNGRNGRN

DOOR

BLK

WHI

VIO or BRN

Chassis

BLKBLU

SWITCH

DISPENSE

COLD WATER

FAN

RED

BLK

SOL

VALVE

COLD WATER

WHI/VIO WHI

WHI/BLK

VALVE

WATER INLET

SOL

RED

WHI/RED

BRNWHI

J3-1

J3-2 J1-5

BRN

WHI/BLK BLK WHI

J1-1

WHI/VIO

WHI

SWITCH

REFRIGERATION

RED/BLKBLK

PUMP

WHI/VIO

RECIR.

GRN

WHIRED/BLK

WHI

MOTOR

CONDENSOR FAN

BLU/BLK

RUN

RED/BLKBLU/BLK

PTC

ASSY

GRN/YEL-16

START

LIMIT

THERM.

WHI/VIO

ORN

PUMPPUMP

DISPENSE

STATION 2

REDRED

VIO

DISPENSE

STATION 1

CABINET

BLK

THERMISTOR

BLK

WHI

BLK

WATER BATH

THERMISTOR

NTR

Models with Mechanical Switches

BOA

P C

J13-1

PNK

GRN

WHI/GRN

TAN

BLK

WHI

WHI/BLK

GRY

J7-1

J7-2

J9-1

J9-2

J2-1

J2-6

VIO

YEL

RED

ORN

WHI/VIO

WHI/ORN

VIOVIO

WHI/ORNWHI/ORN

YELYEL

REDRED

ORNORN

WHI/VIO

ORN

WHI/ORN

DISPENSE

STATION 2

DISPENSE

STATION 1

PUMPPUMP

DISPENSE

STATION 4

REDRED

VIO

YELYEL

SOL SOL

DISPENSE

STATION 3

WHI/VIO

12 12

BRN

RED WHI GRN

DOOR

(Dual Ballast)

Ground

Chassis

BALLAST

BLK

WHIWHI

BLU BLU

BLK BLK

RED WHI

DOOR

(Single Ballast)

ORNBLK

SWITCH

DISPENSE

STATION 4

SWITCH

DISPENSE

STATION 3

YEL

ORN

BLU

J15-4

J15-1

J6-1

J13-6

TAN

BLU

GRY

PNKVIO

BLUWHI/ORN

GRYYEL

BLU

WHI/BLU

WHI/GRNRED

GRNORN

WHI/ORN

DISPENSE

STATION 4

YELYEL

SOL SOL

DISPENSE

STATION 3

WHI/VIO

BALLAST

Ground

Chassis

REDBLK

YELBLK

SWITCH

DISPENSE

STATION 2

GRNBLK

SWITCH

DISPENSE

STATION 1

BLK

GRN or GRY

RED

BLK

J5-4

J5-1

J6-3

J12-3

J12-1

J11-1

J11-5

YEL

BLK

BLU

RED

BLK

RED

BLU

J6-1

AUXILLARY

ORN

YEL

ORN

J5-5

J6-5

J5-1

J1-3

J1-1

J4-5

J4-1

CONTROL BOARD

J3-5

STATIC

SHIELD

STATIC

SHIELD

STATIC

SHIELD

STATIC

SHIELD

WHI/BLU

J3-1

STATIC

SHIELD

J2-5

Models with Membrane Switches

J2-1

WHI

WHIWHI

BLK

SWITCH

LOCKOUT

DISPENSE

Ground

Chassis

SMALL

MEDIUM

STATION

DISPENSE

LARGE

STOP/PLUS

COLD

WATER

SWITCH

DISPENSE

SMALL

MEDIUM

STATION

DISPENSE

LARGE

STOP/PLUS

SMALL

MEDIUM

STATION

DISPENSE

LARGE

STOP/PLUS

SMALL

MEDIUM

STATION

DISPENSE

LARGE

STOP/PLUS

PUSH BUTTON OPTION

120 VOLTS ACor230 VOLTS AC

STATIC

SHIELD

DISPENSE

STATIC

SHIELD

DISPENSE

STATIC

SHIELD

DISPENSE

STATIC

SHIELD

DISPENSE

STATIC

SHIELD

DISPENSE

2 WIRE

SINGLE PHASE

STATION

DISPENSE

COLD

WATER

SWITCH

STATION

DISPENSE

STATION

DISPENSE

STATION

DISPENSE

49179 110613

ELECTRICAL SCHEMATIC DIAGRAM for JDF-4D

WHI/GRN

WHI/ORN

WHI/VIO

BLU TAN

BLU/BLK

THERM.

GRN/YEL-16

STATION 1

PUMP

DISPENSE

STATION 2

PUMP

DISPENSE

STATION 3

PUMP

DISPENSE

STATION 4

PUMP

DISPENSE

STATION 1

SOL

DISPENSE

STATION 2

SOL

DISPENSE

STATION 3

SOL

DISPENSE

STATION 4

SOL

DISPENSE

Models with Membrane Switches

J10-1

J10-7

(Press & Release Models)

SCHEMATIC WIRING DIAGRAM JDF-4D

COMPRESSOR ASSY

COMPRESSOR

MOTOR

LIMIT

RUN

START

PTC

ASSY

RED/BLKBLU/BLK

AUXILLARY

CONTROL BOARD

BLU/BLK

WHI

CONDENSOR FAN

MOTOR

WHI/GRN

WHI/ORN

WHI

WHI RED/BLK

VIO

ORN

RED PNK

YEL TAN

RECIR. PUMP

GRN

VIO ORN

RED PNK ORNORN WHI/GRN

WHI/VIOWHI/VIO WHI/ORN YEL TAN BLUBLU GRYGRY

J6-1

J6-5

J8-1

WHI

RED/BLK

BLK RED BLU YEL ORN

REFRIGERATION

SWITCH

WHI/BLU

BLU

WHI/BLU

BLU

BLK

RED

BLU YEL

ORN

WHI/BLK

BLK

J2-1

J2-6

J13-1

J13-6

J6-1

J6-3

J12-1

J12-3

J11-1

J11-5

WHI

WHI/VIO

J1-1

WHI/BLU

BLK

C O N T R O L

P C B

O A R D

TRANSFORMER

BLU

TRANSFORMER

BLU

BRN

WHI/BLK

J1-5

GRN

BLK

WHI

BLK

WHI

COLD WATER

VALVE

WHI/VIO WHI

SOL

WATER INLET

VALVE

BRNWHI

SOL

RED

J3-1

WHI/RED

J3-2

GRY

J7-1

WHI/BLK

J7-2

BLK

J9-1

WHI

J9-2

WATER BATH

THERMISTOR

WHI-22

J8-1

BLK-22

J15-1

J15-4

J5-1

BLK BLK

J5-4

BLK

WHI

1 CLOCK

120V

MODELS

BLK

THERMISTOR

WHI

CABINET

230V

MODELS

NL1GND

BLU

BRN

GRN/YEL

EMI

FILTER

BLK

WHI

RED

FAN

BLK

RED

FAN

BLK

122

DISPENSE

WHI/VIO

DISPENSE

NOZZLE

DISPENSE

SWITCH

WHI/ORN

SWITCH

DISPENSE

NOZZLE

DISPENSE

SWITCH

DISPENSE

NOZZLE

TAN

J8-6

J9-1

J9-4

STATIC

POWER

COOLING

SHIELD

LED

DISPENSE

NOZZLE

WHI/GRN

BLU

RINSE

SWITCH

120 VOLTS AC

230 VOLTS AC

2 WIRE

SINGLE PHASE

DISPENSE

LOCKOUT

SWITCH

BLK

49179 110613

120V

220-230V

WHI/GRN

WHI/ORN

WHI/VIO

BLU TAN

WHI/VIO

ELECTRICAL SCHEMATIC DIAGRAM for JDF-4D

(Portion Control Models)

SCHEMATIC WIRING DIAGRAM JDF-4D

BLU

WHI/BLU

BLU

WHI/BLU

WHI/BLK

BLK

WHI

BLK

WHI/BLK

WHI/VIO

J1-1

J2-1

J2-6

CONTROL

P C BOARD

J13-1

J13-6

J6-1

J6-3

J12-1

J12-3

J11-1

J11-5

BLU/BLK

THERM.

GRN/YEL-16

STATION 1

PUMP

DISPENSE

STATION 2

PUMP

DISPENSE

STATION 3

PUMP

DISPENSE

STATION 4

PUMP

DISPENSE

STATION 1

SOL

DISPENSE

STATION 2

SOL

DISPENSE

STATION 3

SOL

DISPENSE

STATION 4

SOL

DISPENSE

Models with Membrane Switches

J10-1

POWER LED

J10-7

COOLING LED

LARGE

DISPENSE

STATION

DISPENSE

NOZZLE

J3-1

J2-5

STATIC SHIELD

LARGE

SMALL

MEDIUM

STOP/PLUS

J2-1

STOP/PLUS

WHI/ORN

COMPRESSOR ASSY

COMPRESSOR

MOTOR

LIMIT

RUN

START

PTC

ASSY

RED/BLKBLU/BLK

J4-1

J3-5

STATIC SHIELD

SMALL

MEDIUM

STOP/PLUS

DISPENSE STATION

DISPENSE NOZZLE

TAN

WHI

CONDENSOR FAN

BLU/BLK

J8-1

J8-6

AUXILLARY

CONTROL BOARD

J4-5

STATIC SHIELD

LARGE

SMALL

MEDIUM

DISPENSE

STATION

DISPENSE

NOZZLE

MOTOR

J1-1

DISPENSE

COLD WATER SWITCH

WHI

WHI/GRN

WHI/ORN

J1-3

STATIC SHIELD

WHI/GRN

VIO ORN RED PNK

YEL TAN

BLU

WHI RED/BLK

RECIR.

PUMP

GRN

VIO ORN RED PNK ORNORN WHI/GRN

WHI/VIOWHI/VIO WHI/ORN YEL TAN BLUBLU GRYG RY

J6-1

J6-5

J9-1

J9-4

J5-1

J5-5

STATIC SHIELD

LARGE

SMALL

MEDIUM

STOP/PLUS

DISPENSE

STATION

DISPENSE

NOZZLE

BLK RED BLU YEL ORN

120 VOLTS AC

220-230 VOLTS AC

SINGLE PHASE

WHI

RED/BLK

RINSE

SWITCH

2 WIRE

WHI/BLU

REFRIGERATION

SWITCH

BLU

BLK RED BLU

YEL ORN

TRANSFORMER

COLD WATER

VALVE

WHI/VIO WHI

WATER INLET

VALVE

BRN WHI

BRN

RED

J3-1

WHI/RED

J1-5

J3-2

GRY

J7-1

WHI/BLK

J7-2

BLK

J9-1

WHI

J9-2

WHI-22

J8-1

BLK-22

J15-1

J15-4

J5-1

BLK BLK

J5-4

DISPENSE

LOCKOUT

SWITCH

GRN

BLK

WHI

BLK

WHI

SOL

WATER BATH THERMISTOR

MODELS

A B

BLK

MODELS

GRN/YEL

FILTER

NL1GND

BLU

BRN

EMI

A B

BLK

WHI

RED

FAN

BLK

RED

FAN

BLK

WHI

BLK

CABINET

THERMISTOR

CLOCK

BLK

49179 110613

120V

230V

ELECTRICAL SCHEMATIC DIAGRAM

for JDF-4S-SB

BLU/BLK

GRN/YEL-16

STATION 1

DISPENSE

STATION 1

DISPENSE

WHI/VIO

SOL SOL

STATION 3

DISPENSE

STATION 3

DISPENSE

WHI/VIO

SOL SOL

120 VOLTS AC

230 VOLTS AC

2 WIRE

SINGLE PHASE

SCHEMATIC WIRING DIAGRAM JDF-4S-SB

COMPRESSOR ASSY

COMPRESSOR

MOTOR

LIMIT

THERM.

RUN

START

PTC

ASSY

RED/BLKBLU/BLK

STATION 2 DISPENSE

REDRED

VIO

STATION 2 DISPENSE

YEL YEL

STATION 4 DISPENSE

VIO

REDRED

STATION 4 DISPENSE

YEL YEL

CONDENSOR FAN

MOTOR

WHI

BLU/BLK

WHI RED/BLK

ORN

PUMPPUMP

WHI/VIO

WHI/ORN

ORN

PUMPPUMP

WHI/VIO

WHI/ORN

RECIR.

PUMP

GRN

WHI/VIO

VIOVIO WHI/ORNWHI/ORN YELYEL

REDRED ORNORN

TAN

PNKVIO BLUWHI/ORN GRYYEL

WHI/GRNRED GRNORN

WHI

RED/BLK BLK

REFRIGERATION

SWITCH

RED

J2-1

ORN

VIO YEL

WHI/ORN

WHI/VIO

J2-6

WHI/GRN

J13-1

GRN

PNK GRY BLU TAN

J13-6

WHI/BLU

J6-1

BLU

J6-3

WHI/BLU

J12-1

BLU

J12-3

J11-1

J11-5

WHI/BLK

WHI/VIO

WHI

J1-1

WHI/BLU

BLK

CONTROL

P C BOARD

BLU

WHI/BLK

BRN

J1-5

TRANSFORMER

WHI

TRANSFORMER

WHI

COLD WATER

VALVE

WHI/VIO WHI

SOL

WATER INLET

VALVE

BRN WHI

SOL

RED

J3-1

WHI/RED

J3-2

GRY

J7-1

WHI/BLK

J7-2

BLK or ORN

J9-1

WHI

J9-2

YEL

J15-1

ORN BLU

J15-4

GRN

J5-1

RED BLK BLK

J5-4

DISPENSE LOCKOUT

SWITCH

BLK

WATER BATH

THERMISTOR

BLK

GRN

MAIN POWER

BLK

WHI

ON/OFF SWITCH

MODELS

BLK

WHI

A B

BLK

MODELS

GRN/YEL

FILTER

NL1GND

BLU

BRN

EMI

A B

BLK

WHI

RED

FAN

BLK

WHI

CABINET

THERMISTOR

BLK

ORN

BLK BLK BLK BLK BLK

ORN

YEL RED GRN BLK BLK

BLK BLK BLK BLK BLK

BLK

YEL BLK

BLK

RED

BLK

GRN

BLK

STATIC SHIELD

DISPENSE

STATION

DISPENSE

STATIC SHIELD

DISPENSE

STATION

DISPENSE

STATIC SHIELD

DISPENSE

STATION

DISPENSE

STATIC SHIELD

DISPENSE

STATION

DISPENSE

49179 110613

Bunn JDF-4S, JDF-4D, JDF-4SB User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual