Bunn-O-Matic CDS-2, CDS-3 Operation Manual

CDS-2 CDS-3

DISCONTINUED VERSION

The information in this manual

is no longer current.

OPERATING & SERVICE MANUAL

BUNN-O-MATIC CORPORATION

POST OFFICE BOX 3227

SPRINGFIELD, ILLINOIS 62708-3227

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

To obtain the Illustrated Parts Catalog, visit the Bunn-O-Matic website, at www.bunn.com. This is absolutely FREE, and the quickest way to obtain the catalog. 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.

www.bunnomatic.com

INTRODUCTION

This equipment dispenses granita-type and cold liquid drinks on demand from separate hoppers. Operating

controls are accessible only to key operators.

CONTENTS

Introduction & Warranty .....................................................................................2

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

Site Preparation, Electrical Requirements & Initial Setup ...................................5

Operating Controls ..............................................................................................8

Using the Dispenser & Recommendations ........................................................10

Recommended Cleaning ..................................................................................12

Lubrication ........................................................................................................13

Faucet Handles ..................................................................................................14

Auger Assembly ................................................................................................15

Troubleshooting ................................................................................................16

Service ..............................................................................................................21

Refrigerant Flow Diagrams ................................................................................51

Schematic Wiring Diagrams ..............................................................................54

WARRANTY

Bunn-O-Matic Corp. (“Bunn”) warrants the equipment manufactured by it to be commercially free from defects in material and workmanship existing at the time of manufacture and appearing within one year from the date of installation. In addition:

1.) Bunn warrants electronic circuit and/or control boards to be commercially free from defects in material

and workmanship for three years from the date of installation.

2.) Bunn warrants the compressor on refrigeration equipment to be commercially free from defects in mate-

rial and workmanship for two years from the date of installation.

3.) Bunn warrants that the grinding burrs on coffee grinding equipment will grind coffee to meet original factory screen sieve analysis for three years from date of installation or for 30,000 pounds of coffee, whichever comes ﬁrst.

This warranty does not apply to any equipment, component or part that was not manufactured by Bunn or that, in Bunn’s judgement, has been affected by misuse, neglect, alteration, improper installation or operation, improper maintenance or repair, damage or casualty.

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.

The Buyer shall give 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. If requested by Bunn, the Buyer shall ship the defective equipment prepaid to an authorized Bunn service location. If Bunn determines, in its sole discretion, that the equipment does not conform to the warranty, Bunn shall repair the equipment with no charge for parts during the warranty period and no charge for labor by a Bunn Authorized Service Representative during the warranty period. If Bunn determines that repair is not feasible, Bunn shall, at its sole option, 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, AS SPECIFIED HEREIN, TO REPAIR OR, AT BUNN’S SOLE OPTION, 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.

27646 060401

USER NOTICES

HAZARDOUS

VOLTAGE

DISCONNECT FROM

POWER SOURCE

BEFORE REMOVING!

WARNING

CHARGE

Type R22, Amount 8.4 oz

Design Pressures: High 210 Low 32

CAUTION

Instructional video that accompanies every

machine should be viewed before using

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.

27444.0000

12559.0003

00986.0002

28720.0000

27443.0000

27646 120601

USER NOTICES (CONT.)

CHARGE

Type R22, Amount 8.4 oz

Design Pressures: High 210 Low 32

AFTER CLEANING &

BEFORE REASSEMBLY

LUBRICATION

1. Apply lubricant* on lip of auger seal where contact is made with cooling drum.

2. Apply lubricant* on outside surface of cooling drum seal or inside bore of hopper.

3. Apply lubricant* over o-rings on faucet spool before inserting into faucet housing. * Refer to product literature for Bunn approved lubricant.

CHARGE

Type R404A, Amount 25 oz

Design Pressures: High 320 Low 44

CHARGE

Type R404A, Amount 9.5 oz (269 gm) Design Pressures: High 215 psi (15 bar) (1.48 MPa) Low 40 psi (3 bar) (0.28 MPa)

CHARGE

Type R404A, Amount 22 oz

Design Pressures: High 380 Low 52

27444.0000 (CDS-2 Only)

29373.00000 (CDSA-2 Only)

27664.0000

28519.0000 (CDS-3 Prior to S/N CDS0019500)

29424.0000 (CDS-3 S/N CDS0019500 - UP)

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SITE PREPARATION

These dispensers are very heavy. Place them on a sturdy counter or shelf capable of supporting at least 180

lbs for the CDS2 and 250 lbs for the CDS3. They are for indoor use only.

The dispenser must have at least four inches of space behind it. This space is needed for airﬂow, air ﬁlter

removal, and cleaning. Minimal clearance is required between the dispenser sides and the wall or another appli-

ance. The dispenser performs better if not placed near any heating appliance. Leave some space so the dispenser

can be moved for cleaning.

ELECTRICAL REQUIREMENTS

CAUTION – Improper electrical installation will damage components. An electrician must provide electrical

service as speciﬁed below.

Model CDS-2, This dispenser has an attached cordset and requires a 2-wire, grounded, individual branch

circuit rated 120 volts ac, 15 amp, single phase, 60 Hz. The mating connector must be a NEMA 5-15R. (Refer

to the dataplate for exact electrical requirements.)

Model CDSA-2, This dispenser has an attached cordset and requires a 2-wire, grounded, individual branch

circuit rated 230 volts ac, 10 amp, single phase, 50 Hz. The mating connector must be a NEMA 5-15R. (Refer

to the dataplate for exact electrical requirements.)

Model CDS-3, This dispenser has an attached cordset and requires a 2-wire, grounded, individual branch

circuit rated 120 volts ac, 20 amp, single phase, 60 Hz. The mating connector must be a NEMA 5-20R. (Refer

to the dataplate for exact electrical requirements.)

Model CDSA-3, This dispenser has an attached cordset and requires a 2-wire, grounded, individual branch

circuit rated 230 volts ac, 15 amp, single phase, 50 Hz. The mating connector must be a NEMA 5-20R. (Refer

to the dataplate for exact electrical requirements.)

NOTE – Bunn-O-Matic does not recommend the use of any extension cord with these dispensers.

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6.0"

MIN.

6.0"

MIN.

6.0"

MIN.

DO NOT REMOVE

INITIAL SETUP

CAUTION – The dispenser is very heavy! Use care when lifting or moving it. Use at least two people to lift or

move the dispenser.

1. Set the dispenser on the counter where it will be used. The CDS-3 dispenser requires a minimum of 6.0”

air clearance on both sides and at the rear of the dispenser. For optimum performance, do not let warm air from surrounding machines blow on the CDS-3 and DO NOT REMOVE VINYL DEFLECTOR.

NOTE – The dispenser should be level or slightly lower in front for proper operation.

Vinyl Deﬂector

2. Remove all shipping material, including the compressor support eye-bolts, the cooling drum supports, the

“Do Not Lift Here” signs from the cooling drums, and the “Rinse Before Using” signs from each hopper.

NOTE – Use BOM M2550.0000 lubricant where speciﬁed.

3. Squeeze some lubricant into

hand.

4. Apply a thin ﬁlm of lubricant to

each cooling drum seal.

5. Install the seal over the ﬂange

at the rear of each cooling drum as shown.

6. Press the seals firmly into

place.

7. Apply a thin ﬁlm of lubricant to

the inside of each auger shaft seal.

8. Install the seals on the auger

shafts. Wipe the cooling drums to remove any lubricant.

27646 022500

INITIAL SETUP (CONT.)

APPROXIMATELY .25"

9. Align the auger shaft with the

ﬂat ﬁn of the auger. Push the augers as far as they will go and rotate them so the ﬂat ﬁns are pointing up.

12. Plug in the hopper lid lamp

cables.

10. Thoroughly rinse the hoppers

and install them over the cooling drums with augers. Slide them into place and push them

down as far as they will go.

As much as possible, keep lubricant from the inside of the hoppers. The cleaner you keep the food zone, the cleaner the product you’ll serve the customer.

13. (CDS-2 only) Assemble the drip

tray.

11. Set the lids on the hoppers.

Slide front-to-back or lift off for ﬁlling.

14. (CDS-3 only) Loosen the two

front legs by turning counterclockwise to gain approximately .25” clearance. Install the slots of the support bracket over threaded studs of the legs as shown in illustration. Tighten the legs by turning clockwise to secure the bracket in place.

15. (CDS-3 only) Install the drip

tray.

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OPERATING CONTROLS

(CDS-3 Controls Illustrated)

ICE CONTROLS

Controls the consistency of the ice in the hoppers when the DAY/NIGHT switch is in the left “DAY” position and the ICE/OFF/NO-ICE switch is in the left “ICE” position.

Turn this control clockwise to produce a coarser ice or counterclockwise to produce a ﬁner ice. (The dispenser is set to deliver satisfactory ice at a 1:00 setting.)

AUGER SWITCHES ”—” – This is the normal operating posi-

tion. Energizes the auger motor when in

the right position. The dispenser will cool to the ice consistency or liquid temperature presets only with the switch in the right position.

“o” – Removes power from the auger motor when in the left position.

ICE/OFF/NO-ICE SWITCHES ICE – This is the normal operating position. Freezes

and maintains the ice in the selected hopper to the consistency set with the ICE control(s) when in the left “ICE” position.

OFF – Provides no cooling to the selected hopper when in the center “OFF” position.

NO-ICE – Maintains cooling yet allows any ice in the selected hopper to naturally thaw when in the right “NO-ICE” position.

DAY/NIGHT SWITCH DAY – This is the normal operating position.

The hoppers’ display lights will glow and the electronic controls will maintain ice when the switch is in the left “DAY” position, the individual hoppers’ ICE/OFF/NO-ICE switches are in the left “ICE” position, and the individual hoppers’ AUGER switches are in the right “—” position.

POWER OFF/ON SWITCH ON – This is the normal operating position. The dis-

penser is electrically energized when the switch is in the right “ON” position. NOTE – The compressor will start after a 3 minute 20 second delay on the CDS-2

will be kept cold in all hoppers when this switch is in the right “NIGHT” position and the AUGER switches are in the right “—”position.

NIGHT – Use this position at night. The hoppers’ display lights will be out yet the liquid

and a 6 minute 30 second delay on the CDS-3. OFF – All electrical components of the dispenser are

without power when the switch is in the left “OFF” position.

NOTE: When Day/Night Timer is used, the Day/Night Switch in the control drawer must be kept in the “DAY” position.

POWER INDICATOR (Located on the front of the drawer)

Glows to show that the POWER OFF/ON Switch is in the right “ON” position.

STATUS INDICATORS

The electronic controls continuously diagnose the operational status of the dispenser and indicate as listed: FLASHING 50% ON / 50% OFF – Glows while preparing for coolant to ﬂow to the selected hopper. (Flashes for

10-seconds, then glows steady for two minutes.) STEADY GLOW – Glows for two minutes before coolant ﬂows to the selected hopper, then continues to glow while coolant ﬂows. The electronics also sense and indicate error conditions in the dispenser as listed:

ONE FLASH EVERY FOUR SECONDS – Cooling is needed by the selected hopper, but the auger isn’t turning. Try placing the AUGER switch for the selected hopper in the right “—” position.

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OPERATING CONTROLS (Cont.)

TWO FLASHES EVERY FOUR SECONDS – A temperature error is being sensed. Call Bunn-O-Matic for Sup-

port.

THREE QUICK FLASHES – Low auger torque is being sensed. Call Bunn-O-Matic for Support.

FOUR QUICK FLASHES – High auger torque is being sensed. Call Bunn-O-Matic for Support.

DAY/NIGHT TIMER

The quartz driven timer offers 24-hour programming with 96 actuators that operate in 15-minute incre-

ments. All actuators can be individually set to the inside or outside position. The timer is located behind the

right side panel.

SETTING TIME

1. Locate marker on the inner (stationary) dial that points to outer dial. The marker is at approximately the two O’clock position.

2. Turn outer dial clockwise until the marker is pointing to the correct time. The clock hands will turn with the outer dial indicating the same time as the marker. NOTE - the outer dial has AM and PM settings.

SETTING NIGHT TIME MODE

1. Locate the actuators positioned around the outer dial. Inward position indicates day time mode and outer position indicates night time mode.

2. Determine the desired times that night time mode is to begin and end.

3. Position all actuators between begin and end times in the outer position.

EXAMPLE: Night Time Mode is 11:00 PM - 7:00 AM

Place the actuator at 11:00 PM to the outside position. Con-

tinue placing actuators to the outside position counterclock wise around the dial to 7:00 AM. All actuators from 7:00 AM to 11:00 PM must be in the inside position.

NOTE: For Day/Night Timer to operate, the Day/Night Switch

in the control drawer must be kept in the “DAY” position.

P1948

Shown in “Night Time” Mode

P1947

Shown in “Day Time” Mode

27646 022500

USING THE DISPENSER FOR GRANITA-TYPE PRODUCTS

1. Slide the lid for the selected hopper to the front or back to gain access to the hopper.

2. Place the premixed liquid product in the selected hopper.

3. Simply press all switches to the center of the control drawer for granita products. a. Place the POWER OFF/ON switch in the right “ON” position. b. Place the auger switch for the selected hopper in the right “—” position. c. Place the DAY/NIGHT switch in the left “DAY” position. d. Place the ICE/OFF/NO-ICE switch in the left “ICE” position.

4. Wait for the liquid to freeze to the desired consistency.

HINTS – Bunn-O-Matic recommends that the product in the dispenser be thawed each day, usually overnight.

The ice granules get too large and a consistent product is difﬁcult to maintain if left frozen for an extended period of time. Place the DAY/NIGHT switch in the right “NIGHT” position for a few hours each night. Then return it to the left “DAY” position when the product has thawed sufﬁciently. You’ll know it is in the night position because the hopper lid lights are out.

USING THE DISPENSER FOR COLD LIQUID PRODUCTS

1. Slide the lid for the selected hopper to the front or back to gain access to the hopper.

2. Place the premixed liquid product in the selected hopper.

3. Simply place all switches to the center of the control drawer except the ICE/OFF/NO-ICE switch. a. Place the POWER OFF/ON switch in the right “ON” position. b. Place the auger switch for the selected hopper in the right “—” position. c. Place the DAY/NIGHT switch in the left “DAY” position. d. Place the ICE/OFF/NO-ICE switch in the right “NO-ICE” position.

4. Wait for the liquid to cool.

27646 022500

OTHER RECOMMENDATIONS FOR YOUR DISPENSER

• Whetherliquidconcentrateorgranulatedpowder,allproductmustbethoroughlymixedBEFOREaddingit

to the hoppers.

• Forbestresultswithgranita-typeproducts,useonlyproductswithanapparentbrixof12orhigher.Some

products may work with an apparent brix as low as 9. Your experimentation with other products will be the best guide in this area.

• Keepthepremixedliquidproductrefrigerated.Thisreducescooling/freezingtimeinthedispenser.

• Keepthehopperstopped-offduringpeakservingperiods.Addpremixedliquidproductasitisdispensed.

This reduces the cooling/freezing time and assures you of always having product ready to dispense.

• Keeptheproductlevelinthehoppershigherthantheauger.Airwillbecomeentrappedinthemixtureresult-

ing in a clouded foamy consistency.

• Youmaynditbenecialtoturndowntheicecontrolstokeeptheicegranulesfromgrowingtoolarge.

Refer to the operating controls on page 1-6.

• Someproductsfreezeatalowertemperaturethanothers.Youmaynoticefrostoriceonthehoppers.This

is normal and should not be a concern.

• Humidityintheairmaycausesweatingontheoutsidesurfacesofthehoppers.Thisistobeexpectedand

should not be a concern. The drip trays beneath the hoppers will capture this and cause it to ﬂow to the lower drip tray for disposal.

• Somenoisesaretobeexpectedduringnormaloperationofthedispenser.Bybecomingfamiliarwiththe

noises made during normal operation, you will be better able to listen for problems.

27646 022500

RECOMMENDED DAILY CLEANING (SUGAR & ALCOHOL PRODUCTS!)

NOTE – Close the control drawer before proceeding.

1. Empty all product from the hoppers.

2. The driptray should be cleaned as needed for proper presentation of the product.

3. MixapacketofKay-5Sanitizerdilutedwithtwo-gallonsofwarm(120°F)waterforeachhopper.

4. Open the lids and add the solution.

5. Allow the solution to work for about ﬁve minutes with the dispenser on the ”NIGHT” position.

6. Drain the sanitizing solution from the hoppers and completely rinse each with clean water.

7. Wash the underside of hopper covers or powder autoﬁll dispensers with hot water and a mild detergent

solution. Rinse all surfaces and apply some commercial sanitizing agent. Do not immerse hopper lids.

NOTE – The hoppers and augers should be removed and disassembled for cleaning at least once a week using

the procedure below.

RECOMMENDED WEEKLY CLEANING (SUGAR & ALCOHOL BASED PRODUCTS!) RECOMMENDED DAILY CLEANING (DAIRY PRODUCTS!)

NOTE – Close the control drawer before proceeding.

1. Empty all product from the hoppers. Disconnect the hopper lid cords and remove the lids.

2. Lift the hopper up slightly, then

use a hard plastic utensil to pry it up. Pull forward to remove.

5. Spread the sides of the dis-

pense handle and pull it off to remove the faucet pieces.

3. Pull the auger from the cool-

ing drum. Remove the auger shaft seal from the front of the cooling drum and the cooling drum seal from the rear of the drum.

6. Push the metal pin out through

the faucet. Unscrew the plastic cap, and push the faucet spool and spring out the bottom.

4. Disassemble the auger for

cleaning by spreading apart the latches and removing each piece.

7. Squeeze the O-rings to free

them from the grooves in the faucet spool.

8. Roll the O-rings off of the faucet

spool.

9. Remove the black plug from the faucet spool for cleaning. Do

not use tools to remove this.

10. Pull down, then out on the

air ﬁlter at the rear of the dispenser.

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RECOMMENDED WEEKLY CLEANING (CONT.)

11. Wash all components with a wash cloth in mild hot water and detergent solution. Do not immerse hopper lids.

12. Wash the drums, hopper drip trays, top covers, and outer enclosure using a clean wash cloth that has been dampened in a mild solution of detergent and hot water.

13. Thoroughly rinse all surfaces with a clean wash cloth that has been dampened with hot water. Wipe dry with a clean dry wash cloth before reassembling the dispenser.

14. Remove the lower drip tray assembly. Wash and thoroughly rinse all pieces before reinstallation.

NOTE – Although most parts are dishwasher safe, they may be affected by some commercial sanitizing agents. Do not place the hopper nor hopper lids in a dishwasher.

LUBRICATION

NOTE – Use BOM M2550.0000 lubricant where speciﬁed.

1. Squeeze some lubricant into

hand.

4. Press the seals firmly into place.

7. Align the auger shafts with the ﬂat ﬁn of the augers. Push the augers as far as they will go and rotate them so the ﬂat ﬁns are pointing up.

2. Apply a thin ﬁlm of lubricant to

each cooling drum seal.

5. Apply a thin ﬁlm of lubricant to

the inside of each auger shaft seal.

8. Thoroughly rinse the hoppers

and install them over the cooling drums with augers. Slide them into place and push them

down as far as they will go.

As much as possible, keep lubricant from the inside of the hoppers. The cleaner you keep the food zone, the cleaner the product you’ll serve the customer.

3. Install the seals over the ﬂange

at the rear of the cooling drums as shown.

6. Install the seals on the auger

shafts. Wipe the cooling drums to remove any excess lubricant.

9. Set the lids on the hoppers.

27646 022500

LUBRICATION (cont.)

10. Reinstall the black plug into the faucet spool. Do not lubricate the plug.

13. Reinstall the plastic caps,

springs, spools, and metal pins. Spread the dispense handles and reinstall them.

NOTE – When reinstalling the faucet

caps, they MUST be twisted as far as they will go. (Past the point where it clicks.)

11. Apply a thin ﬁlm of lubricant to

each faucet spool O-ring.

14. Plug in the hopper lid lamp

12. Slide the O-rings onto the

spools.

15. Assemble the drip tray.

cables.

NOTE – The faucet spool plugs, faucet O-rings, cooling drum hopper seals,

and auger shaft seals are to be replaced whenever they appear worn or damaged. Bunn-O-Matic recommends their replacement at least every six-months. Refer to page 24 for replacement instructions.

FAUCET HANDLES

Dispensing from the hoppers will occur when the faucet handles are installed with the handles in the upright position. (shown, left hopper)

Dispensing from the hoppers will not occur when the handles are installed upside-down. (shown, right hopper) You may consider this handle position when the product in the hoppers is not yet ready to serve. Just spread the handles or disassemble them as shown, and install them upside down.

DISASSEMBLY

1. Unscrew the balls from the handle assemblies. Turn them in a counterclockwise direction until they are no longer attached to the handles.

2. Remove the metal sleeves from the assemblies.

3. Separate the two halves of the handles and remove them from the faucet bodies.

ASSEMBLY

1. Place the two halves of the handles on the faucet bodies. Check that the faucet dowel pins are in place all the way through the faucet bodies. The dowel pins must be captured by the keyholes in the handle halves.

2. Place the metal sleeves over the threads and install the balls by turning them in a clockwise direction.

27646 122200

AUGER ASSEMBLY & DISASSEMBLY (EARLY AUGERS ONLY)

The augers may look intimidating at ﬁrst glance. But there are really just a few pieces snapped together. Please familiarize yourself with this procedure. It’ll make cleaning and routine maintenance easier. The augers should be taken apart for cleaning and then reassembled for use.

Short Auger Latch

Auger Sections (3 req’d.)

ASSEMBLY

1. Snap one of the auger sections

to the long auger latch.

2. Snap another auger section

in place.

Long Auger Latch

Auger Nose

4. Snap the auger nose onto the

last section installed.

5. With the long auger latch on

top, place the short auger latch inside the augers and snap it onto the assembly.

3. Snap the third auger

section in place.

DISASSEMBLY

1. Firmly pull the auger section connections apart at each slot in the long auger latch.

2. Firmly pull the connection between the auger section and auger nose apart.

3. Separate the slots in the short auger latch as you remove the auger sections.

27646 022500

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120voltacand/or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.

• 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

Doesn’t work (Switches do nothing, auger not turning, no hopper lid lights, no fan, no compressor sound.)

Hopper Lid Lights not on

PROBABLE CAUSE

1. No power or incorrect voltage to the dispenser

2. ON/OFF Switch

1. DAY/NIGHT Switch

REMEDY

(A) Check for proper voltage at the wall outlet.

(B) Check circuit breakers or fuses.

(A) The ON/OFF Switch must be in the “ON” position.

(B) Refer to Service - Dispenser ON/ OFF Switch for testing procedures. See page 37.

(A) The DAY/NIGHT Switch must be in the “DAY” position.

(B) Refer to Service - DAY/NIGHT Switch for testing procedures. See page 36.

2. Lamp Cord Assembly

(A) The lamp cord must be plugged into the lamp cord connector.

(B) Refer to Service - Lamp Cord Assembly for testing procedures. See page 42.

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TROUBLESHOOTING (cont.)

PROBLEM

PROBABLE CAUSE

REMEDY

Hopper Display Lights not on

(cont.)

Auger Motor won’t turn

3. Circuit Breaker

4. Lamps

5.Transformer

6. Lamp Holder/Socket Assy

1. Auger ON/OFF Switch(es)

(A) The circuit breaker must not be tripped.

(B) Refer to Service - Circuit Breaker for testing procedures. See page

27.

Remove the lamps and check for continuity across the base and tip. Replace if necessary.

Refer to Service - Transformer for testing procedures. See page 49.

Refer to Service - Lamp Holder/Sock- et Assembly for testing procedures. See page 44.

(A) The auger switch must be in the “ON” position.

Fan not spinning (With adjustment

Board L.E.D.s ON steadily for two

minutes)

Fan spins after compressor shuts

off

2. Auger Motor Capacitor(s)

3. Auger Motor(s)

1. Fan Motor

1. Time Delay

(B) Refer to Service - Auger ON/OFF Switch(es) for testing procedures. See page 26.

Refer to Service - Auger Motor Capacitor(s) for testing procedures. See page 23.

Refer to Service - Auger Motor(s) for testing procedures. See page 22.

Refer to Service - Fan Motor for test- ing procedures. See page 39.

The fan motor will run for approximately two minutes after compressor shuts off.

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TROUBLESHOOTING (cont.) PROBLEM

PROBABLE CAUSE

REMEDY

Compressor not running (With Adjustment Board L.E.D.s ON steadily for two minutes)

1. Power cord

2. Fuse

3. Contactor

4. Electronic Control

5. Compressor Start Relay

6. Thermal Overload Protector

The dispenser must not be connected with an extension cord. Refer to Electrical Requirements.

Refer to Service - Fuse and Fuse Holder for testing procedures. See page 40.

Refer to Service - Contactor for test- ing procedures. See page 34.

Refer to Service - Electronic Control for testing procedures. See page

38.

Refer to Service - Compressor Start Relay for testing procedures. See page 28 (CDS-2) or 31 (CDS-3).

Refer to Service - Compressor Ther- mal Overload Protector for testing procedures. See page 28 (CDS-2) or 31 (CDS-3).

Compressor runs but will not cool (With adjustment Board L.E.D.s ﬂashing once every 4 seconds)

Compressor runs but will not cool (With adjustment Board L.E.D.s ﬂashing twice every 4 seconds)

Compressor runs but will not cool (With adjustment Board L.E.D.s flashing 3, or 4 times every 4 seconds)

7. Compressor Start Capacitor

8. Compressor

1. Auger not turning

1. Temperature Sensor Assembly

1. Torque Sensor Circuit Board

Refer to Service - Compressor Start Capacitor for testing procedures. See page 28 (CDS-2) or 31 (CDS-3).

Refer to Service - Compressor for testing procedures. See page 28 (CDS-2) or 31 (CDS-3).

Refer to Troubleshooting - Auger Mo- tor Won’t Turn on previous page.

Refer to Service - Temperature Sensor Assembly for testing procedures. See page 47.

Refer to Service - Torque Sensor Circuit Board for testing procedures. See page 48.

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