JDF-2
S/N JDF0005473 & UP
DISCONTINUED VERSION
The information in this manual
is no longer current.
INSTALLATION & OPERATING 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 manual or to obtain the illustrated parts catalog, 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. Contact Bunn-O-
Matic Corporation at 1-800-286-6070 to obtain a paper copy of the required Illustrated Parts Catalog mailed via U.S. Postal Service.
38310.0000F 03/08 ©2005 Bunn-O-Matic Corporation www.bunn.com
BUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY
Bunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows:
1) All equipment other than as specified below: 2 years parts and 1 year labor.
2) Electronic circuit and/or control boards: parts and labor for 3 years.
3) Compressors on refrigeration equipment: 5 years parts and 1 year labor.
4) Grinding burrs on coffee grinding equipment to grind coffee to meet original factory screen sieve analysis:
parts and labor for 3 years or 30,000 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, damage or casualty. 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.
BrewWISE, BUNN Gourmet Ice, BUNN Pour-O-Matic, BUNN, Bunn-OMatic, Bunn-O-Matic, BUNNlink, BUNNserve, BUNN
Espress, DBC, Dr. Brew, Dual, EasyClear, EasyGard, Easy Pour, FlavorGard, Gourmet Ice, Gourmet Juice, High Intensity,
IMIX, Infusion Series, Legendary for Quality, The Mark of Quality in Beverage Equipment Worldwide, My Café, PowerLogic, Safety-Fresh, Scale-Pro, Single, Smart Funnel, Smart Hopper, Soft Heat, SplashGard, System III, ThermoFresh,
392, AXIOM, Beverage Profit Calculator, Beverage Bar Creator, BrewLOGIC, BrewMETER, BrewWIZARD, BUNNSERVE,
BUNNsource, Coffee At Its Best, Cool Froth, Digital Brewer Control, Intellisteam, Nothing Brews Like a BUNN, Pouring
Profits, Pulse Wave, Quality Beverage Equipment Worldwide, Signature Series, Silver Series, Smart Heat, SmartWAVE,
Tea At Its Best, The Horizontal Red Line, Titan, Ultra, are either trademarks or registered trademarks of Bunn-O-Matic
Corporation.
2
38310 020608
CHARGE
Type R134A, Amount 9 oz (255 gm)
Design Pressures:
High 255 psi (15.5 bar) (1.76 MPa)
Low 36 psi (2.5 bar) (0.25 MPa)
CONTENTS
This equipment must be installed to comply
with the International Plumbing Code of the
International Code Council and the Food
Code Manual of the Food and Drug Administration (FDA). For models installed outside
the U.S.A., comply with the applicable
Plumbing /Sanitation Code.
Warranty .............................................................................................................2
Introduction ........................................................................................................3
User Notices .......................................................................................................3
Initial Set-Up & Electrical Requirements .............................................................4
Plumbing Requirements .....................................................................................4
CE Requirements ................................................................................................4
Operating Controls ..............................................................................................7
Initial Fill .............................................................................................................5
Dispenser Use .....................................................................................................9
Cleaning ............................................................................................................10
Adjustments & Optional Settings ......................................................................13
Function Lists ...................................................................................................18
Troubleshooting ................................................................................................21
Coolant Diagram ...............................................................................................28
Schematic Wiring Diagram ...............................................................................29
USER NOTICES
Carefully read and follow all notices on the equipment and in this manual. They were written for your protec-
tion. All notices are to be kept in good condition. Replace any unreadable or damaged labels.
00986.0002
00656.0000
33461.0001
27442.0000
12559.0003
3
38310 030308
INITIAL SET-UP
CAUTION: The dispenser is very heavy! Use care when lifting or moving it. Use at least two people to lift or move the
dispenser. Place dispenser on a sturdy counter or shelf able to support at least 150 lbs. (68 kg). The JDF-2 is designed
for indoor use only.
Set the dispenser on the counter where it will be used. The JDF-2 requires a minimum of 4 inches (102 mm) of air
clearance at the rear and 8 inches (203 mm) of air clearance above the dispenser. Minimal clearance is required between
the dispenser sides and the wall or another appliance. For optimum performance, do not let warm air from surrounding
machines blow on the JDF-2. Leave some space so the dispenser can be moved for cleaning.
ELECTRICAL REQUIREMENTS
CAUTION: The dispenser must be disconnected from the power source until specified in Electrical Hook-Up.
The 120V rated dispensers have an attached cord set and require a 2-wire, grounded, individual branch circuit rated
120 volts ac, 15 amp, single phase, 60Hz. The mating connector must be a NEMA 5-15R. (Refer to the data plate for exact
electrical requirements.)
The 230V rated dispensers have an attached cord that requires an attachment plug cap rated at least 10a, 230V. The
attachment plug cap must meet with applicable national/local electrical codes.
ELECTRICAL HOOK-UP
CAUTION: Improper electrical installation will damage electronic components.
1. An electrician must provide electrical service as specified.
2. Using a voltmeter, check the voltage and color coding of each conductor at the electrical source.
3. Connect the dispenser to the power source.
4. If plumbing is to be hooked up later, be sure the dispenser is disconnected from the power source. If plumbing has
been hooked up, the dispenser is ready for Initial Fill.
PLUMBING REQUIREMENTS
This dispenser must be connected to a COLD WATER system with operating pressure between 20 and 100 psi (138
and 690 kPa). This water source must be capable of producing a minimum flow rate of 3 fluid ounces (88.7 milliliters) per
second. A shut off valve should be installed in the line before the dispenser. Install a regulator in the line when pressure is
greater than 100 psi (690 kPa) to reduce it to 50 psi (345 kPa). Also if the install location experiences pressure fluctuations
greater than 20 psi (138kPa). The main water inlet is a 3/8” (9.52 mm) MFL connection.
Additionally, the dispenser’s rinse connection may be connected to a HOT WATER system.
Caution:
MAXIMUM RINSE WATER TEMPERATURE: 170 degrees F (76.6 degrees C)
Use BUNN-O-MATIC tubing, part number 34325.10_ _ (see Illustrated Parts Catalog for complete part number) for hot
water connection.
The rinse water operating pressure must be between 20 and 100 psi (138 and 690 kPa). A shut off valve should be
installed in the line before the dispenser. Install a regulator in the line when pressure is greater than 100 psi (690 kPa) to
reduce it to 50 psi (345 kPa). The rinse water inlet is a 1/4” (6.35 mm) MFL connection.
NOTE- At least 18 inches (457 mm) of an FDA approved flexible beverage tubing, such as reinforced braided
CE REQUIREMENTS
• This appliance must be installed in locations where it can be overseen by trained personnel.
• For proper operation, this appliance must be installed where the temperature is between 0°C to 35°C.
• Appliance shall not be tilted more than 10° for safe operation.
• An electrician must provide electrical service as specied in conformance with all local and national codes
• This appliance must not be cleaned by water jet.
• This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capa-
bilities, or lack of experience and knowledge, unless they have been given instructions concerning use of this appliance by a person responsible for its safety.
• If the power cord is ever damaged, it must be replaced by the manufacturer or authorized service personel with a special
cord available from the manufacturer or its authorized service personel in order to avoid a hazard.
4
38310 030308
PLUMBING REQUIREMENTS (cont)
polyethylene, before the dispenser will facilitate movement to clean the countertop. It can be purchased direct
from BUNN-O-MATIC (part number 34325.10_ _ [see Illustrated Parts Catalog for complete part number.])
BUNN-O-MATIC does not recommend the use of saddle valves to install the dispenser. The size and shape of the
hole(s) made in the supply line(s) by saddle valves may restrict water flow.
Note- A water strainer (Bunn-O-Matic part number 23720.1000) should be installed in line, prior to the flexible water line. This strainer is supplied loose with the dispenser. (See Fig. 2 for proper locations)
This equipment must be installed to comply with the International Plumbing Code of the International
Code Council and the Food Code Manual of the Food and Drug Administration (FDA). For models installed
outside the U.S.A., you must comply with the applicable Plumbing/Sanitation Code for your area.
NOTE - Water pipe connections and fixtures directly connected to a potable water supply shall be sized, installed
and maintained in accordance with federal, state and local codes.
INITIAL FILL
CAUTION: The dispenser must be disconnected from the power source throughout the initial fill except when
specified in the instructions.
1. Remove drip tray assembly and splash panel from the dispenser.
2. Pull the overflow tube from its retaining clip and connect it to the main water source (black gasket is supplied
in install kit).
3. Connect dispenser to the power source.
4. Slowly open the water shut off valve and fill the water bath until water trickles from the overflow. The dispenser
will beep for three seconds when bath is approaching full. Reduce the flow rate at this time.
5. After 3 minutes of power, slowly add more water to the tank until water trickles from overflow again.
6. Once water bath is filled, remove water source, cap dispenser fill line, and store the fill tube in it’s holder (the
fill tube can now be used as a sight glass).
7. Replace the splash panel and drip tray.
8. Place refrigeration switch to the “ON” position. It will take approximately three hours at 75° F (24° C) ambient
to create the ice bank required for full dispenser performance. During this time, some further trickling from
the water bath is expected due to expansion caused by ice bank formation. While the refrigeration system is
creating the ice bank, the dispenser may be readied for use as described in Plumbing, Loading, Priming and
Adjustment.
FIG 1 Initial Fill Connection
5
P2655
38310 030308
PLUMBING HOOKUP
All plumbing connections are located on the rear of the dispenser. For Models prior to the Water Inlet Valve,
both the rinse and potable water line must be connected to a water source.
P3805
P2656
Models w/Water Inlet Valve Prior to Models w/Water Inlet Valve
FIG 2 Plumbing Connections
LOADING
Frozen Concentrates
1. Thaw the frozen concentrate in a refrigerated 35-40 degrees F (1.6-4.4 degrees C) environment for 36 to 48
hours before use.
2. Thoroughly mix the thawed concentrate by vigorously shaking the product container.
3. Open the dispenser door.
4. Prior to placing the product container in the dispenser, make sure that the o-ring on the container adapter is
lubricated. This will ease removal of the container when it becomes necessary.
5. Place the product container in the desired position and press it firmly into the bottle adapter opening.
6. Open the vent hole in the product container.
Note: Concentrate in the container must be completely thawed and be within the temperature range of 35-40
degrees F (1.6-4.4 degrees C.) Product outside of this temperature range, especially below, will produce an
“out of brix” drink.
Ambient Concentrates (Optional)
1. Install an Ambient Concentrate Conversion Kit (BUNN-O-MATIC part number 33699.0001) per the instructions provided in the kit.
2. Attach the concentrate product hose to the appropriate concentrate line located at the rear of the dispenser.
3. Attach the other end of the product hose to the product container through an appropriate fitting.
PRIMING
1. Open the dispenser door
2. Load concentrate per instructions in section titled Loading.
3. Close the dispenser door. NOTE: The dispenser will not operate with the door open.
4. Place a large container under the appropriate dispense nozzle.
5. Dispensers with Press and Hold Feature:
Press and hold the “Product Dispense Switch” Fig 4, until concentrate dispenses from the dispense
nozzle.
Dispensers with Portion Control Feature:
Press and hold the “+/STOP Switch” Fig 5, until concentrate dispenses from the dispense nozzle.
Note: This may take several seconds, depending on the installation and programmed pump speed.
6
38310 012207
OPERATING CONTROLS
FIG 3 Refrigeration Switch
Refrigeration Switch
The refrigeration switch is located on the top of the dispenser near the
left rear corner. This switch controls power to the compressor and the
condenser fan motor.
P2261
Sanitize Switch
The sanitize switch is located behind the drip tray in the lower left
corner of the chassis. The drip tray can be removed to provide easy
access to the switch. The sanitize switch is used to enter and exit the
sanitize mode and to initiate the sanitize automatic cycle. Refer to
Weekly Sanitizing in the Cleaning section for detailed instructions on
the use of this switch.
FIG 4 Sanitize Switch
P2657
7
38310 062205
OPERATING CONTROLS (cont.)
B
B
A
A
C
FIG 5 Press and Hold Models
A. Product Dispense Switch
Pressing and holding switch will initiate product flow from the respective nozzle; releasing the switch will
stop the flow.
B. Hidden Switch
These switches are used to access, change and exit the dispenser program mode.
C. Lock Switch
This switch is used to lockout the dispensing capabilities.
B
D
D
B
E
E
C
FIG 6 Portion Control Models
B. Hidden Switch
These switches are used to access, change and exit the dispenser program mode.
C. Lock Switch
This switch is used to lockout the dispensing capabilities.
D. Product Dispense Switch
Momentarily pressing and releasing one of the switches will initiate a timed dispense. Each station has three
different timed dispenses which are preset at the factory. Refer to DISPENSER USE section for preset volumes
and adjustment procedures.
E. Plus/Stop Switch
This switch can be used to “top-off” a beverage. Pressing and holding switch will initiate product flow from
the respective nozzle; releasing the switch will stop the flow. Momentarily pressing this switch during a timed
dispense will stop the flow.
8
38310 062205
DISPENSER USE
Press and Hold Models (Refer to Fig 5)
1. Place a cup on the drip tray beneath the desired dispensing nozzle.
2. Press and hold the “Product Dispense” switch until the beverage reaches the desired level, then release.
Portion Control Models (Refer to Fig 6)
1. Place a cup on the drip tray beneath the desired dispensing nozzle.
2. Momentarily press the appropriate cup size switch to dispense the beverage. The dispenser is factory preset
to produce the approximate beverage sizes as follows:
Small (4.0 seconds): approximately 7 fl.oz. (207 ml)
Medium (6.9 seconds): approximately 12 fl.oz. (355 ml)
Large (9.1 seconds): approximately 16 fl.oz. (473 ml)
The dispense times can be individually programmed by following the procedures described in ADJUST-
MENT - Cup Size Programming.
To stop a timed dispense, momentarily press the “+/Stop Switch”.
3. To “top-off” a beverage, press and hold the “+/Stop Switch” until the beverage reaches the desired level, then
release.
9
38310 062205
CLEANING & PREVENTIVE MAINTENANCE
General Cleaning and Sanitizing Procedures
Note: The Bunn Juice Dispenser incorporates a rinse reminder feature which
lights the rinse led on the front panel when it is time to rinse. See dip switch
function list to activate this feature.
Daily: Rinse Procedure
Tools required: 32 oz. (946 ml) minimum empty container
1. Open the refrigerated compartment’s door to access the “DISPENSE/RINSE”
Knobs Fig 7.
2. Select the stations that will be rinsed and then rotate the appropriate Knob(s)
to the rinse position. It is recommended that ALL dispense heads be rinsed
daily. Note: If a station is in service lockout, leave its knob in the Dispense
position.
3. Close the refrigerated compartment’s door.
4. Place the empty container under the dispense nozzle to catch the rinse water.
(CAUTION: THE BUNN JUICE DISPENSER CAN BE PLUMBED FOR A HOT WATER RINSE. RINSE WATER CAUGHT
IN THIS STEP SHOULD BE HANDLED WITH EXTREME CARE.)
5. Press and release the appropriate “Product Dispense Switch” Fig 5. This will initiate a timed rinse cycle. Portion control users can press any of the 3 “Product Dispense Switches” Fig 6, to initiate a timed rinse cycle.
6. Repeat for each dispense head.
7. Open the refrigerated compartment’s door and return each knob to the dispense position.
8. Actuate the station’s Dispense Switch until concentrate appears from the dispense nozzle.
FIG 7 Dispense/Rinse Switch
Daily: Parts Washing
1. Remove and wash the dispense nozzle(s), mixing element(s), drip tray and drip tray cover in a mild detergent
solution. Rinse thoroughly.
2. Wipe splash panel, areas around dispense nozzle(s), and drip trough in refrigerated compartment with a
clean, damp cloth.
Weekly: Sanitizing
Tools required: Nozzle tubing (BUNN-O-MATIC part number 03289.1002) recommended when sanitizing multiple
dispense heads simultaneously, 1 empty 5 gallon (18.9 L) bucket, 2 packets of Kay 5 sanitizer, and clean, empty
concentrate containers.
Note: The Bunn juice dispenser features a semiautomatic sanitizing program. When sanitizing multiple heads
simultaneously, attach Bunn sanitize tubing (BUNN-O-MATIC part number 03289.1002) on the end of each
dispense nozzle and run tubing to the 5 gallon (18.9 L) bucket.
1. Remove any juice concentrate from the dispenser and store in a separate refrigerated compartment.
2. Perform the rinse procedures as previously described. (Note: If the dispenser is plumbed for hot water rinse,
proceed to step 9.)
3. Fill clean empty concentrate container(s) with approximately 128 oz. (3.8L) of the hot tap water (approxi-
mately 140°F (60°C). Load the containers of hot water into the dispenser (just like concentrate). Verify the
rinse knobs are in the “DISPENSE” position.
4. Remove the drip tray and verify that the nozzle tubes are positioned within the empty bucket.
5. Press and hold the “Sanitize Switch” Fig 5, located on the front left portion of the base, for 5 seconds. The
“SANITIZE” indicator on the front panel will begin to flash and the beeper will sound twice indicating that
you have entered the sanitize mode.
10
38310 062205
CLEANING (cont)
6. Select the dispense stations by pressing the “Dispense Switch” for that station. Use the “+/Stop Switch” for
portion contol dispensers. The “REFILL” indicator will light and the beeper will sound for the dispense head
selected.
7. Once the dispense heads have been selected, press and hold the “Sanitize Switch” for 5 seconds again to
initiate the automatic cycle. (When the cycle is initiated the “SANITIZE” indicator lights steadily and the “REFILL” indicator for each station being sanitized will flash.)
Note: The sanitize routine takes 8 minutes. During the sanitize routine the following steps will occur in sequence:
A) The pumps at the selected dispense heads will run for 1 minute, or until the bottles
filled with hot water empty, whichever occurs first.
B) The dispenser will sit idle for 5 minutes.
C) The pumps at the selected dispense heads will run for 2 minutes or until the bottles
filled with hot water empty, whichever occurs first.
D) The beeper will sound once every 3 seconds to indicate completion of the sanitize
routine.
Note: To terminate a sanitize program mid-cycle, momentarily press and release the “Sanitize Switch” and proceed
to step 17. The sanitize program should be restarted from step 1 to ensure proper sanitization.
8. Once the cycle is completed, disconnect the sanitizing hose(s) from the nozzle(s) and empty the bucket.
9. Remove each dispense nozzle and mixing element and run under hot tap water to remove excess pulp.
10. Prepare 2.5 gal. (9.46 L) of sanitizing solution by dissolving 1 packet of Kay 5 sanitizer into 2.5 gal. (9.46 L)
of 120°F (48.9°C) water to ensure 100 ppm of available chlorine.
11. Place nozzle(s) and mixing element(s) in a separate 1 quart container of sanitizing solution and mix thoroughly.
Allow the part to soak for 2 minutes.
12. Clean the dispense nozzle receptacle(s) (dispense valves) with the sanitizing solution and a soft bristle
brush.
13. Clean the concentrate bottle’s inlet adapter(s) using the sanitizing solution and a soft bristle brush.
14. Replace the mixing element(s) and nozzle(s), reattach the sanitizing hose(s) to the nozzle(s), and insert the
hoses into the catch bucket.
15. Fill approximately 96 ounces (2.8 L) of clean sanitizing solution into clean, empty concentrate container(s).
Do not use the sanitizing solution used in step 11. Load the containers into the dispenser.
16. Repeat steps 5 through 8.
Note: The sanitize routine takes 8 minutes. During the sanitize routine the following steps will occur in se-
quence:
A) The pumps at the selected dispense heads will run for 1 minute, or until the bottles
filled with sanitizing solution empty, whichever occurs first.
B) The dispenser will sit idle for 5 minutes.
C) The pumps at the selected dispense heads will run for 2 minutes or until the bottles
filled with sanitizing solution empty, whichever occurs first.
D) The beeper will sound once every 3 seconds to indicate completion of the sanitize
routine.
17. Replace the sanitizing solution with concentrate and reattach the drip tray.
18. Activate a rinse cycle at each station as described in DAILY RINSE PROCEDURE.
19. At each station, actuate the Dispense Switch until juice appears. Then pour one 12 ounce (354.9 ml) glass
of juice and discard.
20. Wipe internal and external surfaces with a clean, damp cloth.
11
38310 062205
CLEANING (cont)
Monthly: Clean Condenser Air Filter
1. Remove the condenser air filter located on the rear of the dispenser.
2. Using a water spray, clean the air filter.
Annually: Replace Pump Tubing
39689.0000 Tube Kit JDF-2S & JDF-4S
39687.0000 Tube Assembly
NOTE: High volume applications may require tubing changes every 6 months.
1. Open dispenser door.
2. Remove all product containers and place them in a refrigerated (35-40 degrees F [1.6-4.4 degrees C]) environment. Disconnect all connections to ambient products from the bottle adapter.
3. Close the dispenser door and dispense product at each station until the product runs clear.
4. Disconnect dispenser from power source.
5. Remove the DISPENSE/RINSE knobs Fig 7, all dispense nozzles, and the dispense platform cover.
6. Shut off the dispenser platform water valve located on the dispense platform. Disconnect the dispense
platform’s water lines from the supply lines inside the refrigerated cabinet and disconnect the wiring connections from the cabinet receptacles.
7. Release the latch securing the dispense platform to the cabinet .
8. Slowly pull the dispense platform forward to allow access to the rear wiring harness connector.
9. Disconnect the rear wiring harness connector from its receptacle.
10. Pull the dispense platform completely out of the cabinet and place it on a flat work surface.
11. Close the dispenser door.
12. Remove the 4 screws securing the pump body to the pump mount.
13. Gently pull the pump tube from around the pump’s rotor.
14. Release the clamp securing the old pump tubing to the plastic elbow.
15. Pull the plastic elbow from the old pump tubing, and discard the old pump tubing.
16. Insert the plastic elbow into the new pump tubing and secure it with the clamp.
17. Gently wrap the new pump tubing around the pump’s rotor, making sure that the elbow and clamp end up
on the top-side of the pump body and don’t protrude through the exit slots.
18.Repeat steps 12 through 17 for the remaining pump.
19. Replace the dispense platform into the refrigerated cabinet, making sure to reconnect all electrical and water
connections.
20. Turn the dispense platform water valve to the open position. Check for leaks.
21. Replace the dispense platform cover, DISPENSE/RINSE knobs and dispense nozzles.
22. Turn power on to dispenser.
23. Turn all DISPENSE/RINSE knobs to the RINSE positions. Close the door and run a rinse at each station. Check
for leaks.
24. Replace product shelf and product containers. Reconnect any connections to ambient product containers.
25. Prime the pumps as described in “PRIMING” in the Initial Fill Section.
12
38310 012207
ADJUSTMENT & OPTIONAL SETTINGS
Ratio Target
2:1 3:1 4:1 5:1 6:1 7:1 8:1 9:1 10:1 11:1 12:1 13:1 14:1 15:1
1.5 2.25 2.00 1.88 1.80 1.75 1.71 1.69 1.67 1.65 1.64 1.63 1.62 1.61 1.60
1.75 2.63 2.33 2.19 2.10 2.04 2.00 1.97 1.94 1.93 1.91 1.89 1.88 1.88 1.87
2.0 3.00 2.67 2.50 2.40 2.33 2.29 2.25 2.22 2.20 2.18 2.17 2.15 2.14 2.13
2.25 3.38 3.00 2.81 2.70 2.63 2.57 2.53 2.50 2.48 2.45 2.44 2.42 2.41 2.40
2.5 3.75 3.33 3.13 3.00 2.92 2.86 2.81 2.78 2.75 2.73 2.71 2.69 2.68 2.67
2.75 4.13 3.67 3.44 3.30 3.21 3.14 3.09 3.06 3.03 3.00 2.98 2.96 2.95 2.93
3.0 4.50 4.00 3.75 3.60 3.50 3.43 3.38 3.33 3.30 3.27 3.25 3.23 3.21 3.20
3.25 4.88 4.33 4.06 3.90 3.79 3.71 3.66 3.61 3.58 3.55 3.52 3.50 3.48 3.47
3.5 5.25 4.67 4.38 4.20 4.08 4.00 3.94 3.89 3.85 3.82 3.79 3.77 3.75 3.73
3.75 5.63 5.00 4.69 4.50 4.38 4.29 4.22 4.17 4.13 4.09 4.06 4.04 4.02 4.00
4.0 6.00 5.33 5.00 4.80 4.67 4.57 4.50 4.44 4.40 4.36 4.33 4.31 4.29 4.27
4.25 6.38 5.67 5.31 5.10 4.96 4.86 4.78 4.72 4.68 4.64 4.60 4.58 4.55 4.53
4.5 6.75 6.00 5.63 5.40 5.25 5.14 5.06 5.00 4.95 4.91 4.88 4.85 4.82 4.80
4.75 7.13 6.33 5.94 5.70 5.54 5.43 5.34 5.28 5.23 5.18 5.15 5.12 5.09 5.07
5.0 7.5 6.67 6.25 6.00 5.83 5.71 5.63 5.56 5.50 5.45 5.42 5.38 5.36 5.33
3 second
water dispense
(oz)
Dispensed product (oz)
Total Dispense Ratio Set Up Procedure
1. Adjust water flow as described in Water Flow Testing and Adjustment. Record water output setting for later
reference on each dispense head.
2. Enter program mode by simultaneously pressing both hidden switches.
3. Press and hold the dispense button, you will hear 5 beeps then two short beeps, continue holding until you
hear three short beeps. At this time the dispenser will run product and water for 3 seconds.
4. Record the total ounces dispensed.
5. Refer to the Brix/Ratio chart below to confirm proper total dispensed amount for ratio desired and water
output previously recorded.
6. To increase or decrease the product output, refer to Pump Speed Programming section. *
* Always dispense 12 ounces of finished product after making a pump speed adjustment before taking an additional sample for the brix/ratio check.
Temperature Compensated Refractometer Method
1. Adjust the water flow as described in Water Flow Testing and Adjustment.
2. Place an empty container under the appropriate dispense nozzle.
3. Dispensers with Press and Hold Feature:
Press and hold the “Product Dispense Switch” Fig 5, until water and concentrate begin flowing freely
from the dispense nozzle.
Dispensers with Portion Control Feature:
Press and hold the “+/Stop Switch” Fig 6, until water and concentrate begin flowing freely from the dis-
pense nozzle.
4. Discard the product caught previously and place the empty container back under the dispense nozzle.
5. Dispensers with Press and Hold Feature:
Press and hold the “Product Dispense Switch” until the cup is filled.
Dispensers with Portion Control Feature:
Press and hold the “+/Stop Switch” until the cup is filled.
6. Stir the contents of the cup, and use the refractometer (according to the manufacturer’s instructions) to check
the brix %.
7. Adjust the pump speed (down to decrease the brix %; up to increase the brix %) to achieve the correct brix
% as described in Pump Speed Programming.
13
38310 092905
ADJUSTMENT & OPTIONAL SETTINGS (cont)
Water Flow Testing and Adjustment
1. Enter the “Pump Speed Programming” mode by simultaneously pressing both “Hidden Switches” Fig 5 or Fig 6. Note that the beeper sounds
twice and that the “PROGRAM” indicator begins flashing.
2. Place a graduated measuring cup or the large chamber of the empty
brixing cup (BUNN-O-MATIC part number 33095.0000) under the appropriate dispense nozzle.
3. Press and hold the desired “Product Dispense Switch” Fig 5 (“+/Stop
Switch” Fig 6, for portion control dispensers) for 5 seconds. Note that the
beeper sounds once per second (6 times, total) during this period.
4. At the end of the 5 second period, the selected position will dispense
FIG 7 Adjusting Water Flow
Using 1/4” allen wrench
water (no concentrate) for only 3 seconds.
5. Measure the water dispensed.
6. Adjust the water flow rate Fig 8, (clockwise to increase flow rate; counterclockwise to decrease flow rate) to
the corresponding product mix ratio as follows:
Mix Ratio Adjust water flow rate to: Product Brix %
(water + concentrate)
2+1 *3.75 fluid ounces (111 ml) Prune Juice 16.0%
per 3-second test Other *
Orange Juice 11.8%
4+1 Pineapple Juice 12.8%
Cranberry Fruit Cocktail 14.0%
*4.0 fluid ounces (118 ml) Grapefruit Juice 10.6%
per 3-second test Lemonade
5+1 Apple Juice 12.0%
Fruit Punch
Grape Juice 13.0%
3+1 through 7+1 Other *
Above 7+1 *4.0 fluid ounces (118 ml) Other *
per 3-second test
High Viscosity Juice 2.25-3.0 fl.oz. (66.5-89ml) As Required per 3-second test
*Maximum flow rate may be less depending on the water pressure supply at each location.
Note: Information for specific products listed in this table is to be used for reference only. Consult the
product label for exact mix ratio and/or brix %. See product label for target brix %.
7. Repeat steps 3 through 6 as necessary until the correct water flow rate is achieved.
8. Repeat steps 3 through 7 for the remaining dispense positions.
9. Exit the “Pump Speed Programming” mode by simultaneously pressing both “Hidden Switches”. Note that
the beeper sounds twice and the “PROGRAM” indicator extinguishes.
14
38310 010406
ADJUSTMENT & OPTIONAL SETTINGS (cont)
Pump Speed Programming
1. Enter the “Pump Speed Programming” mode by simultaneously pressing both “Hidden Switches”. Note that
the beeper sounds twice and that the “PROGRAM” indicator begins flashing.
2. To increase the pump speed, press and hold the right-hand “Hidden Switch” (filled circle) and then momen-
tarily press the “Product Dispense Switch” Fig 5 (“+/STOP Switch” Fig 6, for portion control dispensers).
Each time the “Product Dispense Switch “(+/STOP Switch”) is pressed, the motor speed is increased by one
step (5 revolutions per minute [RPM].) Note that each step is confirmed by a single flash of the appropriate
“REFILL” indicator and a single tone from the beeper.
3. To decrease the pump speed, press and hold the left-hand “Hidden Switch” (half-filled circle) and then mo-
mentarily press the “Product Dispense Switch (“+/STOP Switch” for portion control dispensers). Each time
the “Product Dispense” (“+/STOP”) Switch is pressed, the motor speed is decreased by one step (5 RPM.)
Note that each step is confirmed by a single flash of the appropriate “REFILL” indicator and a single tone
from the beeper.
4. Repeat as necessary at the remaining dispense stations.
5. Exit the “Pump Speed Programming” mode by simultaneously pressing both “Hidden Switches”. Note that
the beeper sounds twice and that the “PROGRAM” indicator extinguishes.
NOTE: Dispense at least 12 oz. of finished product before dispensing a sample to check brix. This will allow the
pump time to adjust to the new speed.
Cup Size Programming (Portion Control Dispensers Only)
1. Enter the “Cup Size Programming” mode by simultaneously pressing the “LARGE” and “SMALL” cup size
switches at any dispense station. Note that the beeper sounds twice and that the “PROGRAM” indicator lights
steadily.
2. Press and hold the desired cup size switch at the appropriate dispense position until the correct cup volume
is achieved. Top up as necessary by momentarily pressing the same cup size switch. Note that if DIP switch
#2 on the control board is set to the “on” position, concentrate must be present in order to dispense or
program cup sizes.
3. Repeat as necessary for the remaining cup sizes and dispense stations.
4. Exit the “Cup Size Programming” mode by pressing any of the “+/STOP Switches”. Note that the beeper
sounds twice and that the “PROGRAM” indicator extinguishes.
15
38310 092905
ADJUSTMENT & OPTIONAL SETTINGS (cont)
Dispenser Lockout
Dispense and Rinse functions of the dispenser can be electronically locked-out to prevent unauthorized use of
the dispenser, while keeping the refrigeration system running.
1. Enter the “Pump Speed Programming” mode by simultaneously pressing both “Hidden Switches”. Note that
the beeper sounds twice and that the “PROGRAM” indicator begins flashing.
2. Enter a “Lockout” password as follows:
a) Press and hold the left hand “Hidden Switch”.
b) In a 5 second period, press and release the “Lock Switch” the number of times that you want the pass-
word set to (maximum of 10.) For example: If you want the password set to 3, press and release the “Lock
Switch” 3 times in the 5 second period.
c) Release the “Hidden Switch”.
d) At the end of the 5 second period, the password will be confirmed by the “REFILL” indicators flashing
the password.
3. Exit the “Pump Speed Programming” mode by simultaneously pressing both “Hidden Switches”. Note that
the beeper sounds twice and that the “PROGRAM” indicator extinguishes.
4. To lockout the dispenser, proceed as follows:
a) Press and hold either “Hidden Switch”.
b) In a 5 second period, press and release the “Lock Switch” the “password” number of times. For example:
If the password is set to 3, press and release the “Lock Switch” 3 times in the 5 second period.
c) Release the “Hidden Switch”.
d) At the end of the 5 second period, the dispenser will extinguish the merchandising lamp, and all dispense
functions will be disabled.
5. To enable the dispenser, proceed as follows:
a) Press and hold either “Hidden Switch”.
b) In a 5 second period, press and release the “Lock Switch” the “password” number of times. For example:
If the password is set to 3, press and release the “Lock Switch” 3 times in the 5 second period.
c) Release the “Hidden Switch”.
d) At the end of the 5 second period, the dispenser will light the merchandising lamp, and dispense func-
tions will be enabled.
6. If the password is forgotten, it can be reset to “0” (dispenser lockout disabled) as follows:
Note: The following procedure also clears the programming and service lockout password.
a) Disconnect the dispenser from its power source.
b) Place the “Refrigeration Switch” Fig 3, in the OFF (rearward) position.
c) While pressing and holding the “Lock Switch”, connect the dispenser to its power source.
d) Continue to hold the “Lock Switch” until the dispenser beeps three times, then release.
e) The passwords are now returned to “0” (no programming or service lockout password/dispenser lockout
disabled.)
f) After 3 minutes, place the “Refrigeration Switch” in the ON (forward) position.
Service Lockout
Should a dispense station become inoperative and require service, the station’s dispense and rinse functions can
be independently locked out, while keeping the remaining stations running.
1. To place a single dispense station in “Service Lockout,” open the dispenser door, press and hold either “Hidden Switch” and the desired dispense station “Product Dispense” (“+/Stop”) switch for 10 seconds.
2. At the end of the 10 second period, the beeper will sound a double tone and the dispense position will be
disabled. Place the DISPENSE/RINSE Knob to “DISPINSE” and close the dispenser door.
16
38310 062205
ADJUSTMENT & OPTIONAL SETTINGS (cont)
3. To remove a dispense station from “Service Lockout,” press and hold either “Hidden Switch” and the desired
dispense station “Product Dispense” (“+/Stop”) switch for 10 seconds.
4. At the end of the 10 second period, the beeper will sound a double tone and the dispense position will be
enabled. Close the dispenser door.
Password Protection
The programming modes and service lockout function may be password protected to prevent accidental or
unauthorized access to these features. The dispenser is shipped from the factory with a password of “0” (no
password.)
1. Enter the “Pump Speed Programming” mode by simultaneously pressing both “Hidden switches”. Note that
the beeper sounds twice and that the “PROGRAM” indicator begins flashing.
2. Program a password as follows:
a) Press and hold either “Hidden Switch”.
b) In a 5 second period, press and release the “Sanitize Switch” the number of times that you want the
password set to (maximum of 10.) For example: If you want the password set to 3, press and release the
“Sanitize Switch” 3 times in the 5 second period.
Note: To reset password to “0” (no password) press and hold the “Sanitize Switch”, without either “Hidden
Switch” pressed, for the 5 second period. When the password resets to “0”, the beeper will sound and the “Water”
indicators will illuminate for approximately 2 seconds.
c) Release the “Hidden Switch”.
d) At the end of the 5 second period, the password will be confirmed by the “WATER” indicators flashing
the password.
e) From this point forward, the password must be entered before access is allowed to programming modes
or the service lockout function.
3. To enter the password, proceed as follows:
a) Press and hold either “Hidden Switch”.
b) In a 5 second period, press and release the “Sanitize Switch” the password number of times. For
example: If the password is set to 3, press and release the “Sanitize Switch” 3 times in the 5 second
period.
c) Release the “Hidden Switch”.
d) Wait for the password to be confirmed by the flashing of the “Water” indicators.
e) Enter the desired program mode or select service lockout as normal within the next 5 seconds.
Note: If the program mode/service lockout is not selected within 5 seconds, it will be necessary to re-enter the
password.
4. If the password is forgotten, it can be reset to “0” (no password) as follows:
Note: The following procedure also clears the dispenser lockout password.
f) Disconnect the dispenser from its power source.
g) Place the “Refrigeration Switch” in the OFF (rearward) position.
h) While pressing and holding the “Lock Switch”, connect the dispenser to its power source.
i) Continue to hold the “Lock Switch” until the dispenser beeps three times, then release.
j) The passwords are now returned to “0” (no programming or service lockout password/dispenser lockout
disabled.)
k) After 3 minutes, place the “Refrigeration Switch” in the ON (forward) position).
17
38310 062205
Dispense Fault List
“REFILL” indicator Beeper Fault
2 flashes 2 beeps Dispense station locked out.
3 flashes 3 beeps DISPENSE/RINSE sensing fault.
4 flashes 4 beeps DISPENSE/RINSE knob mis-positioned.
5 flashes 5 beeps Pump motor stalled/speed sensor inoperative.
All “REFILL” 3 beeps Dispenser locked out.
indicators flash
3 times
Cooling Fault List
Fault Code “COOLING” DBC display Fault Fault
indicator (optional) Priority
8 8 flashes every fault 8 Bath water level low. 1
5 seconds (Also lights all “WATER” indicators)
7 7 flashes every fault 7 Bath temperature probe short circuit. 2
5 seconds
6 6 flashes every fault 6 Bath temperature probe open circuit. 3
5 seconds
5 5 flashes every fault 5 Cabinet temperature probe short circuit. 4
5 seconds
4 4 flashes every fault 4 Cabinet temperature probe open circuit. 5
5 seconds
3 3 flashes every fault 3 Cooling system failure 6
5 seconds (disables all dispense functions)
0 On steady Bath/cabinet Bath and cabinet temperatures excessive. 7
temperatures
2 2 flashes every Bath/cabinet Bath temperature excessive. 8
5 seconds temperatures
1 1 flash every Bath/cabinet Cabinet temperature excessive. (Disables all 9
5 seconds temperatures dispense functions, flashes, all REFILL and
WATER indicators, and sounds the beeper
when temperature is excessive for more than
6 hours.)
18
38310 062205
Dip Switch Function List
Dip Switch Controls Off On
1 “REFILL” indicator when “concentrate out” is detected. Inactive Active
2 Lockout dispense components when “concentrate out” is detected. Inactive Active (Note)
3 Number of positions that can dispense/rinse simultaneously. 3 2
4 Rinse timer Off On
5 Audio feedback during dispenses. On Off
6 Future use. None None
Note: When dip switch 2 is in the “on” position, the “REFILL” indicator is active, regardless of dip switch 1
position.
19
38310 062205
Function #
0
1
2
3
4
101
102
103
104
7
8
9
10
11
12
13
14
15
16
17
18
27
28
29
30
31
32
33
34
50
51
52
53
54
55
75
76
77
78
99
100
Description
Enter Password
Set Pump 1 RPM (Concentrate A)
Set Pump 2 RPM (Concentrate A)
Set Pump 3 RPM (Concentrate A)
Set Pump 4 RPM (Concentrate A)
Set Pump 1 RPM (Concentrate B)
Set Pump 2 RPM (Concentrate B)
Set Pump 3 RPM (Concentrate B)
Set Pump 4 RPM (Concentrate B)
Station 1 Large Cup Dispense Time (seconds)
Station 1 Medium Cup Dispense Time (seconds)
Station 1 Small Cup Dispense Time (seconds)
Station 2 Large Cup Dispense Time (seconds)
Station 2 Medium Cup Dispense Time (seconds)
Station 2 Small Cup Dispense Time (seconds)
Station 3 Large Cup Dispense Time (seconds)
Station 3 Medium Cup Dispense Time (seconds)
Station 3 Small Cup Dispense Time (seconds)
Station 4 Large Cup Dispense Time (seconds)
Station 4 Medium Cup Dispense Time (seconds)
Station 4 Small Cup Dispense Time (seconds)
Display Station 1 Refill ADC
Set Station 1 Refill Threshold
Display Station 2 Refill ADC
Set Station 2 Refill Threshold
Display Station 3 Refill ADC
Set Station 3 Refill Threshold
Display Station 4 Refill ADC
Set Station 4 Refill Threshold
Display Bath Level ADC
Set Bath Refill Threshold
Display Bath Temperature
Calibrate Bath Temperature
Display Cabinet Temperature
Calibrate Cabinet Temperature
Set Dispenser Lockout Password
Test Indicators
Set Rinse Time (seconds)
Set Programming/Service Lock-out Password
Set DBC Function Access Password
Display Software Version
Default Setting
0
180
180
180
180
180
180
180
180
9.1
6.9
4.0
9.1
6.9
4.0
9.1
6.9
4.0
9.1
6.9
4.0
*
100
*
100
*
100
*
100
*
140
*
Must be below
50F to
calibrate
*
Must be below
50F to
calibrate
0
+ = on
4.0
0
0
*
FUNCTION LIST
20
38310 010406
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 qualied service person-
nel.
• All electronic components have 120-240 volt 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 brewer is heated at all times. Keep away from combustibles.
WARNING – • Exercise extreme caution when servicing electrical equipment.
• Unplug the brewer when servicing, except when electrical tests are specied.
• Follow recommended service procedures.
• Replace all protective shields or safety notices.
PROBLEM
All water LED's flash.
Cold Water Circulation
All dispense stations not working
or all water & refill LED's flash and
beep 3 times.
Note: Cooling failure or excessive
bath and cabinet temperatures for
m ore than 4 hours will result in
touchpad lockout or no dispense.
Note: Reset faul/timer by unplugging unit.
PROBABLE CAUSE
1. Bath water level low.
1. Cabinet cooling fan.
2. Bath recirculation pump.
3. Restricted water flow to cabinet
water coil and bath.
REMEDY
Access bath fill valve and top off
bath tank.
Replace fan (24vdc).
Note: Fan receives power when door
switch is closed.
A) If not running, replace pump
(120vac).
B) If no power, replace control
board.
Clean or replace cabinet water
strainer or recirculating manifold
or check for kinked hose.
21
38310 010406
TROUBLESHOOTING (cont.)
PROBLEM
Refrigeration
All dispense stations not working
or all water & refill LED's flash and
beep 3 times.
Note: Cooling failure or excessive
bath and cabinet temperatures for
m ore than 4 hours will result in
touchpad lockout or no dispense.
PROBABLE CAUSE
1. Compressor ON/OFF switch.
2. Dirty condenser filter or fins.
3. Condenser fan not running.
4. Compressor relay not activating.
5. Compressor not running.
REMEDY
Check for "ON" position or no continuity - replace switch.
Clean or replace condenser filter.
Replace fan motor or check fan
blades for obstructions.
Check compressor relay coil for
120vac.
NOTE: Aleays check power with
coil attached.If no 120vac - replace
board. If yes, 120vac - replace
relay.
Note: Relay contacts normally
open.
Check compressor thermal overload
(N/C). If open check for dirty condenser filter or adequate ventilation
and space around machine.
Dispenser Locked Out
All dispense stations not working
or all water & refill LED's flash and
beep 3 times.
Hint: Display light goes out during
dispenser lockout feature, if the unit
has lighted graphics.
Cooling system failure or DBC
fault 3.
6. Compressor running and not
cooling.
1. Dispenser lockout password
set.
1. Refrigeration or cold water recirculation system.
Check refrigeration system for leaks
and proper charge.
See page 17 for instruction on how
to reset or change password.
Check all previous items that pretain to refrigeration or cold water
recirculation
22
38310 010406
TROUBLESHOOTING (cont.)
PROBLEM
Dispense station not working "refill"
LED and beep code.
A) 3-Beep - Dispense/Rinse sensing fault.
B) 4-Beep - Dispense/Rinse knob
mis-positioned.
PROBABLE CAUSE
1. Bottle adapter switch membrane
A) Dispense/Rinse switch membrane shorted out simultaneously.
B) Dispense/Rinse switch membrane open simultaneously.
2. Concentrate lockout (Dipswitch
#2) feature activated - locks out
station when refill light is ON.
REMEDY
Check for moisture at 3-pin connector and clean. Apply electrical
insulating compound or replace
defective switch membrane.
Check knob for mis-position or replace defective switch membrane.
Check for proper orientation of
the Dispense/Rinse membrane
switch.
Hint: Good bottle adapter switch
membrane will sound the beeper
when you rotate the knob between
dispense and rinse to indicate closed
position.
Refill product or turn OFF concentrate lockout feature (Dipswitch
#2)
Refill LED not extinguishing
All stations dispense concentrate
only
3. Dispense touchpad.
Bottle adapter refill
Main water supply
Internal ON/OFF water valve
Frozen bath
See Schematics and check corresponding dispense station button
for continuity - replace touchpad.
Check wire terminals going to the
probes for proper connection or
refill probes need to be cleaned
and rinsed.
NOTE: Door switch resets the "Refill"
LEDs.
Check for ON position.
Check for ON position.
A) Compressor relay/contacts
shorted - replace relay.
B) Recirculating pump - replace or
check for kinked flex line.
23
38310 010406
TROUBLESHOOTING (cont.)
PROBLEM
Dispense station
concentrate only
Dispense station
water only
Dispense starts then stops or "refill"
flashes and beeps 5 times.
PROBABLE CAUSE
Water solenoid
In rinse position
NOTE": Water will dispense for 4
seconds.
Main control board
Dispense motor not running
RPM sensor
REMEDY
Replace solenoid (24vdc) or check
wire connection between water
valve and main control board.
Rotate knob to dispense position.
Check for variable dc voltage when
corresponding dispense switch is
depressed. No dc power - replace
control board.
Check for variable dc voltage at
motor terminals. Voltage present
- replace motor.
A) Verify magnet hub is secured
with screw and star washer to motor shaft.
B) Verify RPM sensor operation.
RPM input 24vdc signal 0 - 5 vdc
intervals.
24
38310 010406
TROUBLESHOOTING (cont.)
PROBLEM
Water leak filling drip tray or around
dispense deck area
Water leaking beneath machine
PROBABLE CAUSE
1. Initial fill/setup
2. Dispense deck
3. Water pressure greater than
100psi
1. Bath tank overflow.
REMEDY
Some expansion normal. May fill
drip tray during initial ice block
formation
Inspect or replace fittings clamps,
o-rings, solenoids and quick disconnect fittings.
NOTE: Dispense deck area slopes
to drain tube that leads to the drip
tray.
Install water pressure regulator and
reduce to 50 psi.
A) Bath fill valve - check for closed
position or replace leaking valve
B) Check all internal water connections.
Erratic spray during dispense
Dispense nozzle dripping water
Can't access programming
2. Condensation from cabinet cooling coil.
Dispense nozzle mixer missing or
broken
Dispense solenoid.
Programming password feature
activated.
Dispense touchpad
Check for routing of condensation
tube to drip tray.
Replace mixer.
Replace dispense deck solenoid.
See Password Protection to access
programming or reset password
to zero or change programming
password.
Check for continuity on half and full
moon buttons. If no continuity when
pressed, replace touchpad.
25
38310 010406
TROUBLESHOOTING (cont.)
PROBLEM
Unit is not working and no beep/light
fault codes
Difficulty brixing and/or weak beverage
PROBABLE CAUSE
1. Step-down transformer.
2. Main control board.
1. Product viscosity or too cold.
2. Low water pressure.
3. High water pressure.
REMEDY
Check for 120/24 vac. If no 24vac
reading, replace step-down transformer.
If 24 vac present and no red LED,
replace control board..
Hint: Red LED on main control board
is powered from the step-down
transformer 24 vac and rectified to
24 vdc by the rectifier.
Thorough thaw of product before
use (35° - 40°)
Maintain 20 psi or higher and a
minimum flow rate of 3 fl oz/sec.
Over 100 psi, install a pressure
regulator and set to 50 psi.
4. Dispense valve adjustment setting.
5. Brix ratio.
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).
B) Adjust water to proper mix ratio.
Once water is set, adjust motor
speed (RPM) to achieve brix %.
Check for proper brix ratio per product using Total Dispense method
and or refractometer method.
26
38310 010406
TROUBLESHOOTING (cont.)
PROBLEM
Difficulty brixing and/or weak beverage
Difficulty brixing bag-in-box
PROBABLE CAUSE
1. Pump tubing.
2. Bottle adapter assembly leaking
NOTE: Leaking water into concentrate bottle during rinse of any
station.
3. Use of portable water pump.
Vacuum leak
REMEDY
Inspect, clean, or replace tubing
and pump rotor/rollers for ease of
rotation.
Replace bottle adapter assembly.
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. Vacuum
leak test bottle adapter assembly.
Repair vacuum leak or replace bottle
adapter assembly.
27
38310 010406
CONDENSER
SUCTION
ACCUMULATOR
COMPRESSOR
EVAPORATOR
PROCESS TUBE
FILTER
DRYER
COOLANT SCHEMATIC DIAGRAM
28
38310 010406
SCHEMATIC WIRING DIAGRAM
J3-1
J3-2
J1-1
J1-5
J1-10
C
O
N
T
R
O
L
P
C
B
O
A
R
D
J1-18
J7-1
J7-5
J7-10
J7-16
J8-1
J8-8
J6-1
J6-6
J6-12
LAMP ASSY.
GRN
GRNGRN
BLU
BRN/BLK
RED/BLK
RED/BLK
GRY
WHI
BLK
LIMIT
THERMOSTAT
K2
K2
COMP.
COMPRESSOR ASSEMBLY
+
–
RECT
TRANSFORMER
WHI/BLU
WHI
WHI
WHI
WHI/RED
WHI/RED
BLK
BLK
RED/BLK
RED/BLK
GRY
WHI WHI
SOL
#2 DISPENSE
RED/BLK
WHI/ORN
SOL
#1 DISPENSE
#2 RINSE &
DISPENSE LIMIT
#1 RINSE &
DISPENSE LIMIT
RED/BLK
WHI/VIO
RECIR.
PUMP
WHI/GRY
WHI/GRN
WHI/GRN
WHI/VIO
ORN
WHI/ORN
BRN/BLK
J5-1
J5-5
J5-10
J5-15
J5-19
RINSE
SOL
WHI
WHI/RED
WHI
BLK
VIO
J4-1
J4-5
J4-10
J4-14
J9-1
J9-6
1
8
112
VIO
WHI/ORN
WHI/VIO
GRY
RED
PNK
WHT/VIO
VIO
VIO
RED/BLK
RED
WHI/VIO
WHI
GRY
RED
WHI/RED
RED
BLK
WHIBLK
GRY
WHI/ORN
GRN/WHI
GRN/BLK
ORN/BLK
WHI/BLK
BLU/WHI
BLK/WHI
RED
RED
RED
VIO
GRY
RED/BLK
RED/WHI
BEEPER
SANITIZE
SWITCH
MOTOR
CONDENSOR FAN
BLK
BRN/BLKBLU/BLK
BLU/BLK
BLK
GRY
PNK
ORN
VIO
ORN
RED
RED
GRY
WHI/VIO
WHI/VIO
VIO
ORN
GRY
GRN
BLK
BLK
WHI/VIO
WHI/ORN
WHI/ORN
WHI/ORN
RED/BLK RED/BLK
VIO
ORN
ORN
GRN
BLU
BLU/BLK
VIO
ORN
WHI/BLK
WHI
PNK
GRY
GRY
GRY
GRN
VIO
ORN
RED
GRY
BLU
YEL
WHI/ORN
WHI/VIO
WHI/ORN
WHI/VIO
VIO
ORN
RED
GRY
WHI/VIO
WHI/ORN
PUMP
#1
PUMP
#2
BLK
FAN
P
R
O
B
E
t
t
WHI/BLK
GRY
GRY
WHI
PNK
CABINET
THERMISTOR
WATER BATH
THERMISTOR
GRN
RED
BLK
GRN
RED
BLK
#1 REFILL
SENSOR
#2 REFILL
SENSOR
VIO
RED
BLK
WHI
WHIWHI/GRN
1
4
FLUORESCENT
LAMP
BALLAST
BLKBLK
WHI
RED
WHI
GRN/WHI
GRN/BLK
ORN/BLK
WHI/BLK
BLU/WHI
BLK/WHI
RED/BLK
RED/WHI
ORN
GRN
BLU
BLU/BLK
BLK
ON/OFF
WHI
WHIWHI/GRY
BLK
120 VOLTS AC
or
230 VOLTS AC
2 WIRE + GND
SINGLE PHASE
BLU/BLK
GRN
1
1
1
BLK
BLK
BLK
WHI
GRN/YEL
1
DISPENSE
RINSE
DISPENSE
RINSE
11
101
1
6
GRY
WHI
PNK
WHI/ORN
1 16
REFILL 1
WATER 1
1 SMALL
1 MEDIUM
1 LARGE
1 STOP/+
LOCKSWITCH
WATER 2
REFILL 2
2 SMALL
2 MEDIUM
2 STOP/+
2 LARGE
PROGRAM
COOLING
SANITIZE
RINSE
SWITCH UNIT ASSEMBLY
(Portion Control Models)
SWITCH UNIT ASSEMBLY
(Push Button Control models)
SHEILD
REFILL 1
WATER 1
DISPENSE 1
LOCKSWITCH
PROGRAM
REFILL 2
WATER 2
COOLING
RINSE
SANITIZE
1 16
DISPENSE 2
SHIELD
To Switch Unit Assembly
OPTIONAL
K1
K1
WHI/VIO
GRY
GRY
RED
RED
11
WHI/ORN
SPEED
SENSOR #2
RED
BLK
GRN
SPEED
SENSOR #1
RED
BLK
GRN
SCHEMATIC WIRING DIAGRAM JDF-2
120V
MODELS
N
AB
AB
AB
L1
230V
MODELS
GRN/YEL
NL1GND
BLK
WHI
BRN
BLU
EMI
FILTER
JUMPER ON
PINS J4-1 & J4-4
230V MODELS
ONLY
WHI/BLU
WHI/VIO
SOL
WATER
INLET
J11-1
J11-3
REFER TO THE FOLLOWING PAGES FOR DETAILED VIEWS OF INDIVIDUAL CIRCUITS
29
38310 012207
J3-1
J3-2
J1-1
J1-5
J1-10
C
O
N
T
R
O
L
P
C
B
O
A
R
D
J1-18
J7-1
J7-5
J7-10
J7-16
J8-1
J8-8
J6-1
J6-6
J6-12
SOL
#2 DISPENSE
RED/BLK
WHI/ORN
SOL
#1 DISPENSE
#2 RINSE &
DISPENSE LIMIT
#1 RINSE &
DISPENSE LIMIT
RED/BLK
WHI/VIO
WHI/VIO
ORN
WHI/ORN
J5-1
J5-5
J5-10
J5-15
J5-19
VIO
J4-1
J4-5
J4-10
J4-14
J9-1
J9-6
1
8
112
VIO
WHI/ORN
WHI/VIO
GRY
RED
WHT/VIO
WHI/VIO
GRY
WHI/ORN
RED
RED
ORN
VIO
ORN
RED
RED
GRY
WHI/VIO
WHI/VIO
VIO
ORN
GRY
GRN
BLK
BLK
WHI/VIO
WHI/ORN
WHI/ORN
WHI/ORN
RED/BLK RED/BLK
VIO
ORN
VIO
ORN
VIO
ORN
RED
GRY
BLU
YEL
WHI/ORN
WHI/VIO
WHI/ORN
WHI/VIO
VIO
ORN
RED
GRY
WHI/VIO
WHI/ORN
PUMP
#1
PUMP
#2
GRN
RED
BLK
GRN
RED
BLK
#1 REFILL
SENSOR
#2 REFILL
SENSOR
DISPENSE
RINSE
DISPENSE
RINSE
11
WHI/ORN
WHI/VIO
GRY
GRY
RED
RED
11
WHI/ORN
SPEED
SENSOR #2
RED
BLK
GRN
SPEED
SENSOR #1
RED
BLK
GRN
SCHEMATIC WIRING DIAGRAM
JDF-2 DISPENSE DECK CIRCUIT
+
24 VDC
30-120 VDC
24 VDC INPUT,
0/5 VDC SWITCHING OUTPUT
24 VDC
A
B
30
38310 010406
J3-1
J3-2
J1-1
J1-5
J1-10
C
O
N
T
R
O
L
P
C
B
O
A
R
D
J1-18
J7-1
J7-5
J7-10
J7-16
J8-1
J8-8
J6-1
J6-6
J6-12
J5-1
J5-5
J5-10
J5-15
J5-19
J4-1
J4-5
J4-10
J4-14
J9-1
J9-6
RED
WHI
GRN/WHI
GRN/BLK
ORN/BLK
WHI/BLK
BLU/WHI
BLK/WHI
RED/BLK
RED/WHI
ORN
GRN
BLU
BLU/BLK
BLK
RED
WHI
GRN/WHI
GRN/BLK
ORN/BLK
WHI/BLK
BLU/WHI
BLK/WHI
RED/BLK
RED/WHI
ORN
GRN
BLU
BLU/BLK
BLK
1 16
REFILL 1
WATER 1
1 SMALL
1 MEDIUM
1 LARGE
1 STOP/+
LOCKSWITCH
WATER 2
REFILL 2
2 SMALL
2 MEDIUM
2 STOP/+
2 LARGE
PROGRAM
COOLING
SANITIZE
RINSE
SWITCH UNIT ASSEMBLY
(Portion Control Models)
SWITCH UNIT ASSEMBLY
(Push Button Control models)
SHEILD
REFILL 1
WATER 1
DISPENSE 1
LOCKSWITCH
PROGRAM
REFILL 2
WATER 2
COOLING
RINSE
SANITIZE
1 16
DISPENSE 2
SHIELD
To Switch Unit Assembly
SCHEMATIC WIRING DIAGRAM
JDF-2 CONTROL PANEL CIRCUIT
31
38310 010406
J3-1
J3-2
J1-1
J1-5
J1-10
C
O
N
T
R
O
L
P
C
B
O
A
R
D
J1-18
J7-1
J7-5
J7-10
J7-16
J8-1
J8-8
J6-1
J6-6
J6-12
LAMP ASSY.
GRN
GRNGRN
BLU
BRN/BLK
RED/BLK
RED/BLK
RED/BLK
GRY
WHI
BLK
LIMIT
THERMOSTAT
K2
K2
COMP.
COMPRESSOR ASSEMBLY
+
–
RECT
TRANSFORMER
WHI/BLU
WHI
WHI
WHI
WHI/RED
WHI/RED
BLK
BLK
RED/BLK
RED/BLK
GRY
WHIWHI
RECIR.
PUMP
WHI/GRY
WHI/GRN
WHI/GRN
BRN/BLK
J5-1
J5-5
J5-10
J5-15
J5-19
RINSE
SOL
WHI
WHI/RED
WHI
BLK
J4-1
J4-5
J4-10
J4-14
J9-1
J9-6
RED
PNK
VIO
VIO
RED/BLK
GRY
RED
WHI/RED
RED
BLK
WHIBLK
RED
RED
VIO
GRY
BEEPER
SANITIZE
SWITCH
MOTOR
CONDENSOR FAN
BLK
BRN/BLKBLU/BLK
BLU/BLK
BLK
GRY
PNK
WHI/BLK
WHI
PNK
GRY
GRY
GRY
GRN
FAN
P
R
O
B
E
t
t
WHI/BLK
GRY
GRY
WHI
PNK
CABINET
THERMISTOR
WATER BATH
THERMISTOR
VIO
RED
BLK
WHI
WHI WHI/GRN
1
4
FLUORESCENT
LAMP
BALLAST
BLKBLK
WHI
ON/OFF
WHI
WHI WHI/GRY
BLK
BLU/BLK
GRN
1
1
1
BLK
BLK
BLK
WHI
GRN/YEL
1
101
1
6
GRY
WHI
PNK
OPTIONAL
K1
K1
120V
MODELS
N
AB
AB
AB
L1
230V
MODELS
GRN/YEL
NL1GND
BLK
WHI
BRN
BLU
EMI
FILTER
+
24 VDC
5 VDC
24 VDC
120 VAC or
230 VAC
120 VAC or
230 VAC
24 VDC
24 VDC
24 VAC
50/60 VAC
A
B
SCHEMATIC WIRING DIAGRAM
JDF-2 REMAINING CIRCUITS
JUMPER ON
PINS J4-1 & J4-4
230V MODELS
ONLY
WHI/BLU
WHI/VIO
SOL
WATER
INLET
J11-1
J11-3
32
38310 012207
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