Combo 3/6 Service Manual
Contents
1. A10115 Figure 15 Compressor Schematic Combo II 14 P N 4216441 REVA CARE AND CLEANING SCHEDULE FOR PREVENTIVE MAINTENANCE Once a Month CAUTION Always disconnect power source BEFORE cleaning or servicing CLEAN CABINET INTERIOR Wash with a cleaning solution of mild detergent and water rinse and dry thoroughly Odors may be eliminated by including baking soda or ammonia in the cleaning solution Plastic parts may be cleaned with a quality plastic cleaner Keep delivery slide area free of dirt and sticky substances Remove and clean condensate drain hose to eliminate any deposits that may restrict condensate water flow Do not get the cleaning solution on electrical components Snack Compartment The vend mechanisms and trays must be wiped clean of dirt and sticky substances Any build up can cause the mechanisms to malfunction Can Bottle Compartment The can bottle racks must be wiped clean of dirt and sticky substances CLEAN CABINET EXTERIOR Wash with a mild detergent and water rinse and dry thoroughly Clean occasionally with a quality car wax Plastic exterior parts may be cleaned with a quality plastic cleaner Every 60 days CLEAN REFRIGERATION INTAKE SCREEN Remove screen and clean dust and debris from screen using a soft bristle brush or a vacuum cleaner Every 6 months CLEAN THE CONDENSER COIL AND REAR EXHAUST SCREEN Remove the Cover Assembly and clean the condenser coil of refrigeration unit using a soft2. 60 Hz 7 5 Amps 10 230 Volt AC 50 Hz 3 75 Amps 10 862 5 Watts Transformer 24 Volt AC Refrigeration System Type 3 Wide 1 3 Plus Hermetically Sealed Controls Electronic Refrigerant R 134a Charge 8 65 Ounces FACTORY CONFIGURATION 3 Wide Snack 29 Select Expandable to 42 3 Wide Beverage 6 Select Coinage MDB version any MDB peripheral device Combo Il ji P N 4216441 REV A INTRODUCTION This manual contains service and installation guidelines and instructions for the Combination Snack Beverage product line All Combination models are equipped with an electronic control system All programming of the vend functions pricing and features is done at the controller Changes can be made without any additional accessories or remote parts Selections can be priced individually from 05 to 999 95 in five cent increments U S currency Features include e Multi Drop Bus MDB coin handling mechanism e Self diagnostics and cash accountability e Multi Vend Free Vend Bonus Vend and Promo Vend features e Hermetically sealed refrigeration system with R 134a refrigerant e Programmable electronic control of the refrigeration unit e Motorized delivery electronically controlled CAUTION This vendor utilizes DC motors Do not attempt to turn augers by hand Motor damage could occur e Visual feedback when a product has been vended or when an error condition exists e Nochange or loss of program memory
3. because of power failure Cash accountability records Total Cash transactions and Total Vend cycles performed by the vendor Information for individual selections complete range rows or total machine can be compiled and used for inventory and ordering records The vending sequence is first in first out for each selection eliminating the need for stock rotation to maintain fresh products in the vend area This manual should be read thoroughly to become familiar with the functions of all components along with the features that are available The initial set up of a vending machine is very important in insuring trouble free operation of the equipment Following the instructions at the initial installation of the machine will avoid service problems and minimize set up time Should you have any questions pertaining to information in the manual replacement parts or the operation of the vendor you should contact your local distributor or VendNet 165 North 10th Street Waukee lowa 50263 USA Parts 888 259 9965 Service 800 833 4411 Parts Fax 515 987 4447 All Other 888 836 3638 E Mail Vendnet vendnetusa com Combo II 2 P N 4216441 REV A UNPACKING This vendor was thoroughly inspected before leaving the factory and the delivering carrier has accepted responsibility for this vendor Note any damage or irregularities at the time of delivery and report them to the carrier Request a written inspection report from the claims insp
4. 5 or greater Extension cords can cause problems 2 Leave atleast six 6 inches 15 cm of space between the back of the machine and any wall or obstruction for proper air circulation Retrieve the keys to the vendor from the coin return cup Open outer door and remove all internal packing material Check that the door will open fully without interference Level the vendor making sure all levelers are touching the floor The vendor must be level for proper operation and acceptance of coins through the coin mechanism Ol pa Combo II 3 P N 4216441 REVA GROUNDING EARTHING amp ELECTRICAL Before connecting the vendor the integrity of the main electrical supply must be checked for correct polarity presence of ground earth and correct voltage These checks should be repeated at 6 month intervals with the routine safety electrical testing of the vendor itself For proper operation of any equipment utilizing electronically controlled components the equipment should be placed on an isolated or dedicated noise free circuit For 115 Volt vendors the circuit should be a minimum 15 Amp 60 cycle properly polarized and grounded earthed For 230 Volt vendors the circuit should be a minimum 7 5 Amp 50 cycle properly polarized and grounded earthed To verify that the receptacle is properly grounded earthed and polarized insert one probe of a Multi Meter set to check AC line voltage or a test light in the ground earth termina
5. GURATION amp TRAY SPACING By re timing the augers difficult to vend items can be dispensed more consistently By altering tray spacing larger items can be vended By changing the tray configuration different product mixes can be accommodated Retiming Each auger can be rotated in 20 degree increments for a different drop off point Most items can be vended successfully when the auger end is positioned at 6 o clock To change the auger end position 1 Unsnap and lift the motor slightly and pull forward on the auger until it separates from the motor See Figure 12 2 Rotate the auger to the desired position and re insert the auger coupling into the motor 3 Make sure the splined auger coupling snaps into place and is seated over the vertical rail see Figure 12 or retaining rib on the tray 4 Gently pull forward on the auger to verify proper installation RETAINING RIB HELIX A10701 Figure 12 AUGER TIMING Tray Configuration Candy to Snack 1 Order the conversion kit from your local distributor or service entity 2 Unplug and remove the tray assembly from the vendor Place the tray harness in the tray before removal 3 Remove existing tray divider and store for possible future use 4 Remove existing auger assemblies and store for possible future use 5 Remove the existing even numbered motor This motor will not be needed 6 Dress terminals removed from the motor around the tray harness and tape in pla
6. Number One In Quality COMBINATION SNACK BEVERAGE Combo II i as 4 CES Models 3516 3534 Service Manual FEB 2008 P N 4216441 Table of Contents SP CIFICATIONS a 2 PRODUCT EJECTORS ssssssssssssrrirsssssnrirnsssnnrnnesssnnnnns 8 CHANGING AUGER TIMING TRAY CONFIGURATION amp EON e TRAY k STACA G a aaa aaan 9 UNPACKING ses ceca sets EN 3 SIE AN EETA esa care i ASTAL ATON a aaran 3 a a a CONTROLLER FUNCTIONS eccccccccscccccesesceseteteteeeeeee 11 POWER SWITCH 20 cccccccccccececccceceeeeteceeseeetsseeeees 5 REFRIGERATION FUNCTIONS amp OPERATION 11 LOADING PRODUCTS cccccccccccececceceeeeteseseetsesees 5 CARE AND CLEANING SCHEDULE FOR PREVENTIVE BOTTLES CANS LIVE DISPLAY Ld he atl atte en 5 MAINTENANCE ETE ee Oe ae ee ee en BR ae ee Oe et ee er ae ae ee REEE 15 BOTTLES CANS cccccccccccssccccssesereereseccessersereereeeee 6 PARTS ORDERING PROCEDURE nana 15 DROP SENSOR ADJUSTMENT estes 7 BEFORE CALLING FOR SERVICE cececccccccccssesecsecesseeseees 16 PACKAGED SNACKS ccccccccccssesccscseceseseceeseceece 7 The Model and Serial numbers are needed for you to obtain quick service and parts information for your machine The numbers are given on the identification plate located on the back side of the cabinet of the machine MODEL NUMBER SERIAL NUMBER SPECIFICATIONS Physical Dimensions Inches Gm inches Gm inches Cm Pounds Kg MODEL Electrical 115 Volt AC
7. TRAL and GROUND terminals the voltmeter should indicate 0 Volts AC See Figure 4 Any voltage reading could cause noise problems in the electronic controller 4 AMPERAGE CHECK At the fuse box or circuit breaker panel locate the proper circuit and ensure that the fuse or breaker protecting that circuit is rated at 15 Amps or greater NOTE In a standard three 3 prong 115 Volt AC wall outlet the GROUND pin is round the NEUTRAL pin is rectangular and located clock wise from the ground pin and the HOT pin is rectangular and smaller than the neutral pin and located counterclockwise from the ground pin See Figure 4 To correct negative voltage amperage polarity or ground checks consult a licensed electrician To correct a negative noise potential check install a noise suppressor which can be obtained from any electrical or electronic supply store or in kit form Combo II 4 P N 4216441 REVA OUTLET TESTER An easy to read outlet tester can be obtained from any electrical or electronic supply store Plug the tester into any grounded 3 prong 115V AC outlet to detect faulty wiring See Figure 5 WHITE LIGHT Read the indicator lights as explained on the tester See Table 1 for explanation of faults RED LIGHT YELLOW LIGHT Refer all indicated problems to a qualified Figure 5 3 Prong Outlet Tester electrician CAUTION Unplug all equipment on branch circuit before testing NOTE This is not
8. a comprehensive diagnostic instrument Please refer to the tester packaging for more information Table 1 Indicated Problems when using a tester FAULT REASON FOR FAULT Open Ground Open Neutral Open Hot Hot contact not connected Hot Ground Reverse Hot and ground contacts interchanged Hot Neutral Reverse Hot and neutral contacts interchanged 3 AMP BREAKER POWER SWITCH Power Switch Each vendor is equipped with a power switch located on the transformer panel along with a 3 Amp breaker The switch will shut off the light and controller Se Figure 6 The 3 Amp breaker is protection for the transformer A10674 Figure 6 Power Switch LOADING PRODUCTS Bottles Cans Live Display The Live Display provides a full view of the products being dispensed along with the price and selection number of each item To load the Live Display simply slide the can or bottle into position from the rear The black foam liner will hold the product securely in position Be sure that the product label faces outward toward the customer Turn the price scroll to the correct price for each selection NOTE Facing the open machine COLUMN 1 is the far right front column COLUMN 2 is the far right back column Column 5 is the far left front column COLUMN 6 is the far left back column Standard 12 oz cans may be double loaded in the front and back increasing the column capacity Combo II 5 P N 4216441 REV A Bottles Cans Make sure that th
9. ail and pull its flanges out of the slots in the front and rear 8 Relocate both left and right rails by reversing step 7 9 Replace the tray by placing its rear rollers on the left and right rails and lifting up slightly on the front of the tray as you push it back until the tray latches in its detent position 10 Plug the tray harness into its receptacle on the right side wall 11 Re engage the tray harness into its harness clamp and snap the clamp closed RAIL LOCATION 12 Test vend the tray in its new position to assure that the tray plug is properly seated SIDE WALL LEFT gt 7 RAIL LOCATION SLOTS RAIL POSITION HOLES FLANGE Figure 13 Removing a Tray Rail A10111 TRAY RAIL LEFT Combo II 10 P N 4216441 REVA COIN MECHANISM amp BILL VALIDATOR CAUTION Do not plug in or unplug the coin changer with the power on The controller will monitor the condition of the coin changer at all times Any activity coins inserted will be recorded and stored in the controller REMOVING ACCEPTED BILLS Accepted bills may be removed by opening the bill box lid or by removing the bill box from the validator See manual from validator manufacturer NOTE If the bill box is removed make sure that it is fully latched in place when it is returned to the validator CLEARING JAMS amp CLEANING Trapped bills debris or dirt can result in poor bill acceptance or bill rejection Remove the bill
10. attendant e Do not load dented or damaged cans or bottles in the columns Possible jams could occur e Do not store bottles in spare space of the cabinet The refrigeration unit could be damaged FRONT GATE ADJUSTMENT SLOT OPENED FUNNEL SLIDE A10677 _ Figure 9 Product Column open Drop Sensor Adjustment The delivery chute uses a drop vibration sensor to detect whether product is vended after a selection is made The drop sensor sends a signal to the controller when a product hits the delivery chute The sensor is attached to the underside of the delivery chute Packaged Snacks To load products lift the tray slightly and pull forward until the tray stops The upper most trays tilt for easier loading Load products from front to back making sure all items fit freely between the augers Do not attempt to force oversize items or packages into the spaces Do not skip a space Place the product on the bottom of the compartment on the product augers with the label facing the front of the machine for easy identification by the customer See Figure 10 When finished loading each tray lift and push it back into the cabinet All trays must be pressed to the rear of the cabinet and properly seated in the detent position SANDWICH CRACKER CANDY PRODUCT SNACK A10114 Figure 10 Loading Example The size of the item being vended must be larger than the diameter of the auger being used to vend properly Undersi
11. box and lower housing to clear trapped bills or debris Clean the bill path plastic parts or belts with a cloth moistened with a mild soap and water solution Clean the magnetic head and optic sensors using a swab and isopropyl alcohol See manual from validator manufacturer CAUTION Do not use any petroleum based cleaning solvents scouring pads or stiff brushes for cleaning CONTROLLER FUNCTIONS See accompanying programming manual for instructions concerning setting up your controller model REFRIGERATION FUNCTIONS amp OPERATION REFRIGERATION CONTROL To prevent damage to the refrigeration unit when it is turned off or the power interrupted the refrigeration unit will not restart for at least three minutes regardless of the temperature When the temperature is above the cut in temperature programmed the unit is turned on When the refrigeration unit reaches the cut out temperature it is turned off If the refrigeration unit runs for more than two hours without reaching the cut out temperature the unit is turned off for the programmed ten 10 minute defrost time It will then be turned on again automatically REFRIGERATION TROUBLESHOOTING If the refrigeration unit is turned off or the power is interrupted the refrigeration unit will not start for at least three minutes regardless of the temperature This is done to prevent damage to the refrigeration unit Breaking the refrigerant joints or seals on the system voids the uni
12. bristle brush and or vacuum cleaner Pull the refrigeration unit and clean the rear exhaust screen of dirt and debris Do not block the evaporator or any area of the airflow with product or supplies PARTS ORDERING PROCEDURE When ordering parts include the following 1 The model and serial numbers of the machine for which the parts are needed 2 Shipping address 3 Address where the invoice should be sent 4 The number of parts required 5 Always refer to the pertinent parts and or part manual for the correct part number and description of a specific part NOTE When RIGHT or LEFT is used with the name of a part it is means the person is facing the machine with the door closed 6 Any special shipping instructions 7 Carrier desired air or air special truck parcel post or rail 8 Signature and date 9 Purchase order number if used Mail your order to VendNet P O Box 488 165 North 10th Street Waukee IA 50263 0488 USA All orders are carefully packed and inspected prior to shipment Damage incurred during shipment should be reported at once and a claim filed with the terminating carrier Combo II 15 P N 4216441 REVA If you do not have the right parts manual contact VendNet If you have any questions check out our Website www vendnetusa com or call VendNet Ask for the Parts Department We will be happy to assist you Email Vendnet vendnetusa com BEFORE CALLING FOR SERVICE Please check the followi
13. ce 7 Move the odd numbered motor to the center slot of the compartment 8 Install the auger retainer furnished as part of the conversion kit 9 Install auger assembly furnished as part of the conversion kit making sure the motor coupling properly engages the motor and is securely snapped over the vertical rail see Figure 8 or retaining rib on the tray 10 Replace the tray assembly into the vendor making sure that the tray is properly located and latched and connect the tray harness 11 Set the selection to the desired vend price and adjust the price scroll to agree 12 Test vend the converted selections for proper operation and price settings NOTE In large item selections the selection numbers will be the odd numbers For example selections C3 and C4 are converted to a single selection C3 Combo II 9 P N 4216441 REVA SNACK TO CANDY o_o Se NO OE a IN _ h 11 12 Order the conversion kit from your local distributor or service entity Unplug and remove the tray assembly from the vendor Place the tray harness in the tray before removal Remove the existing auger assembly and store for possible future use Remove the auger retainer and store for possible future use Move motor from the center slot to the left slot in the compartment Add the new motor furnished as part of the conversion kit in the right hand slot of the compartment Properly wire the motor and switch Refer to the Schematic sect
14. e product being loaded matches the product displayed in the Live Display Make sure that the white composite Funnel Slide on each side of each product column is clean See Figure 9 This assures that the product cannot bridge blocking delivery from the product column Then check the product cradle bed area of the delivery mechanism located at the bottom of the product column to be sure that it is properly aligned with the bed area face down in each column f it is not facedown cycle the motor to re position If this is not done motor may jam See Figure 7 PRODUCT CRADLE A10678 Figure 7 Delivery Mechanism Most products 10 to 20 ounce cans and bottles may be loaded without column adjustment However the front and back gates to the product columns may be adjusted if necessary To adjust column depth front to back with the gate closed lift the gate assembly right and left sections together and reposition in the adjustment slots Product should have not more than 1 8 to 1 4 in free space at front or back of column See Figures 7 and 8 FRONT GATE ASSEMBLY BACK SPACER LOCATION OF PRODUCT CRADLE Figure 8 Bottle Can Product Area Combo II 6 P N 4216441 REVA CAUTION e When loading bottled product make sure that the bottoms of the bottles face the center of the machine Load bottles in the back of the machine with bottom facing the attendant Load bottles in the front of the machine with top facing the
15. e refrigeration relay o Unplug power to the machine remove the relay plate Use an insulated jumper wire to short the wires on relay terminals 2 and 4 or 6 and 8 then restore power to the machine The compressor should start indicating a problem in the control circuit o Check relay terminals 1 to 0 with a Multi Meter Should have 24VDC applied to them o No DC voltage check control board output terminal for a loose connection COMPRESSOR TRIPS ON OVERLOAD e Improper voltage 5 10 above 5 below check power source with Multi Meter e Overload defective Trips too fast check overload with Multi Meter e Relay defective Won t open after starting check relay with Multi Meter e Compressor has shorted windings check compressor windings with Multi Meter e Short in other component Isolate and eliminate each electrical component until short is found e Compressor is too hot o Dirty condenser o Faulty condenser motor or blade o Restricted airflow CAUTION Condenser must be kept clean of dirt and debris to allow for proper air circulation NOISY OR VIBRATING UNIT e Components rubbing or touching each other o Check fan blades and motor o Loose shrouds and harness o Copper tubing o Loose or unsecured parts o Dirty condenser fan blades e Worn or aged compressor grommets e Compressor o Bad valves Combo II 12 P N 4216441 REVA o Slugging o Bad windings See Schematic o Low voltage UNIT SHORT CYCLES Temperature sensor defect
16. ector to file any claim for damage File the claim with the carrier not the manufacturer within 15 days after receipt of the machine Carefully remove outside packing material to avoid damage to the finish or exterior of the machine Remove adhesive residue with denatured alcohol or common household vinegar Inspect the machine for concealed shipping damage Report any damage hidden by the shipping material directly to the delivering carrier on a hidden damage report Record the model number and serial number of the vendor for your records These numbers can be found on the Serial Plate on the rear of the cabinet and or inside the vendor Refer to these numbers on all correspondence and inquiries pertaining to this vendor Remove the Knock Away Skids by placing a block spacer under the vendor See Figure 1 Insert a screwdriver or prying tool into the groove and split the skid in two Discard the slotted washers located on each side of the wooden skids Turn the leveling screws in as far as possible INSERT SCREWDRIVER IN SLOT AND TWIST USE A WOOD BLOCK TO PROP UP ONE SIDE A10116 Figure 1 Removing Knock Away Supports INSTALLATION Consult local state and country codes and regulations before installation of the vendor CAUTION To insure reliability and maintain manufacturers equipment warranty machine must NOT be placed in an environment where the temperature is greater than 90 F 32 C and the relative humidity is 6
17. igns or specifications of such products at any time without notice VendNet 165 North 10th Street et Waukee lowa 50263 DE ND EEE oe United States of America Number One In Quality Service USA amp Canada International Parts 800 833 4411 515 274 3641 Email 888 259 9965 Web Site vendnet vendnetusa com Web Site 4216441 COMBO SERVICE MANUAL GVC Combo II 16 P N 4216441 REVA
18. ion for wire colors and locations Add the divider furnished as part of the conversion kit Install new auger assemblies furnished in conversion kit making sure the motor couplings properly engage with the motor and are securely snapped over the vertical rail see Figure 8 or retaining rib on the tray Replace the tray assembly into the vendor making sure that the tray is properly located and latched and connect the tray harness Set the selections to the desired vend price and adjust the price scrolls Test vend the converted selections for proper operation and price settings TRAY SPACING The trays can be raised or lowered in one inch 2 5 cm increments to provide additional headroom for vending taller items NOTE i EF a When increasing the headroom between two trays a corresponding decrease in headroom of an adjoining tray will result 1 To change the vertical tray spacing follow these steps 2 Pull out the tray to be adjusted until it stops 3 Disengage the tray harness from its snap open harness clamp on the right hand wall 4 Disconnect the tray plug from its receptacle on the right side wall 5 Lift up on the front of the tray and pull slightly forward approximately 1 2 inch 1 25 cm to clear the tray stop 6 Pull tray out until it tilts down Lift the rear of the tray and remove it from the vendor 7 Disengage both left and right tray rails from their slots on the side walls pull inward on the bottom of each r
19. ive or not mounted in the return air duct Defective control board Temperature setting set too warm see Refrigeration Settings section of this manual UNIT OPERATES LONG OR CONTINUOUSLY Temperature sensor defective or not mounted in the return air duct Refrigeration relay shorted Air flow restricted o Faulty evaporator motor or blades causing coils to ice o Loose connections on evaporator motor 1 motor not running o Airflow blocked by product in front of evaporator or air duct openings o Exhaust area blocked machine too close to wall Gasket leak around door Excessive load After loading unit runs longer to pull out excessive heat from product Shortage of refrigerant or restriction Bad controller Ambient air temperature and relative humidity exceed manufacturer s operational standards REFRIGERATED SPACE TOO COLD Temperature sensor defective check with Multi Meter Refrigeration control setting too cold see Refrigeration Settings section of this manual Refrigeration relay bad check with Multi Meter Faulty control board REFRIGERATED SPACE TOO WARM Temperature sensor defective check with Multi Meter Refrigeration control setting too warm see Refrigeration Settings section of this manual Refrigeration relay bad Faulty control board Restricted evaporator space Evaporator motor or blades faulty causing the coils to ice over the evaporator Condenser air flow restricted Plugged or dirty conden
20. l hole and the other probe into the hot terminal of the outlet If unfamiliar with this procedure contact a licensed electrician If the receptacle is not properly grounded earthed or polarized you should contact a licensed electrician to correctly polarize and or ground earth the receptacle to ensure safe operation A noise suppressor has been installed in this machine to compensate for any signal noise that could interfere with the normal operation of the controller Shown in Figure 2 and Figure 3 are properly grounded earthed and polarized wall outlets Figure 2 shows two 230 Volt wall outlets U K EARTH NEUTRAL l ies 3 WIRE OUTLET 7 C HOT NEUTRAL NEUTRAL GROUND GROUND Figure 2 230 Volt Outlets Figure 3 115 Volt Outlet Connect the vendor power cord to a grounded 115 Volt AC 60 Cycle noise free polarized power source of not less than 15 Amps Checking the power source can be accomplished with an AC Voltmeter in the following manner 1 VOLTAGE CHECK When the AC Voltmeter probes are connected to the HOT and NEUTRAL terminals the voltmeter should indicate 110 to 130 volts AC See Figure 4 2 POLARITY AND GROUND CHECK When the AC Voltmeter probes are connected to the HOT and GROUND terminals the voltmeter should indicate 110 to 130 Volts AC See Figure 4 ne Figure 4 Electrical Check with Voltmeter 3 NOISE POTENTIAL CHECK When the AC Voltmeter probes are connected to the NEU
21. ng e Does your machine have at least 6 inches of clear air space behind it e If the power is turned on at the fuse box is the machine the only thing that doesn t work e Is the machine plugged directly into the outlet Extension cords can cause problems DO NOT USE EXTENSION CORDS e ls the evaporator coil free of dust and dirt e ls the condenser coil free of dust and dirt e ls the compressor free of dust A blanket of dust can prevent the compressor from cooling in between workouts e s the circuit breaker at the fuse box reset e Are evaporator fans running To check if fans are running take a small piece of paper in front of the evaporator coil and see if the evaporator fans will blow the paper away e ls the condenser fan running Fold a sheet of 8 1 2 x 11 paper in half Place the paper in front of the condenser coils and see if it draws the paper to it e ls the shelf in front of the evaporator coil clear No tools product or other air restricting items e ls the cold control set as specified Setting the temperature colder does not accelerate cooling of product The contents of this publication are presented for informational purposes only and while every effort has been made to ensure their accuracy they are not to be construed as warranties or guarantees express or implied regarding the products or services described herein or their use or applicabillity We reserve the right to modify or improve the des
22. ser Condenser motor or blades bad Blade stuck Condensing space restricted Unit placed too close to a wall Compressor bad valves Capillary tube will start frosting 8 to 10 inches 20 25 cm past evaporator connection tube Check for oil around brazed connections Combo II 13 P N 4216441 REVA TROUBLESHOOTING CIRCUITS WITH MULTI METER e Tocheck the power source use the voltage section of the Multi Meter should measure within 5 10 above 5 below e Check overload CAUTION Power must be off and fan circuit open Using the resistance section of the Multi Meter check terminals 1 and 3 for continuity If no continuity is measured infinity overload may be tripped Wait 10 minutes and try again If still no continuity overload is defective e Check relay See Figure 15 Unscrew lead terminals and remove relay from compressor NOTE keep relay upright e Check terminals 1 and S or L and S with the Multi Meter Replace relay if continuity exists e Check Temperature sensor with a Multi Meter e Check compressor windings as shown in Figure 15 e Check winding resistance with a Multi Meter If readings are not within 2 Ohms the compressor is faulty Use RX1 scale Wiring diagrams must be followed as shown Any mis wiring can cause serious electrical hazard and potential damage or rupture component electrical parts Winding Resistance _ _ s n ao o 2 CONDENSOR FAN MOTOR a rae
23. t warranty Failure to keep the condenser coil clean and free of dirt and dust and other similar debris voids the unit warranty Know and understand how the unit operates Units may vary but the operation is basically the same Never guess at the problem find the symptom before attempting any repair NOTE g Most refrigeration problems are electrical Combo II 11 P N 4216441 REVA The sealed hermetic system should not be worked on outside the Factory Service Center There are three things that can go wrong with a sealed system and should be repaired only at the Factory Service Center These are e Low Charge usually caused by leaks look for oil around seals and welds Unit will not cool properly The capillary tube is frosted before it enters the evaporator inlet tube e Restriction in Systems unit frosts then melts not cooling properly e Bad valves unit does not cool properly noisy compressor COMPRESSOR WILL NOT START Compressor has no power e Machine not plugged in e Tripped breaker or blown fuse e Faulty wall outlet e Short or open in power cord e Temperature sensor circuit is open check with a Multi Meter e Improper wiring e Low voltage 5 below check the power source with a Multi Meter e Overload defective Trips too fast check overload with the Multi Meter e Start relay defective check start relay with the Multi Meter e Compressor has open windings check compressor windings with a Multi Meter e Defectiv
24. ze items could cause vend problems If the product does not fit the auger properly use a different pitched auger or appropriate product spacer See the following table for augers available from your distributor or service entity Combo II 7 P N 4216441 REVA Available Augers SELECTION COMBO AUGER TYPE COLUMN WIDTH DIA amp PRODUCT SA EEEE ROTATION SPACE 4211397 006309 4200272 112309 4211397 004309 4200272 116309 CANDY 2 4211397 002309 2 3 8 DIA CCW 4 4211397 003309 2 3 4 WIDE COLUMN 4211397 001309 4200272 122309 4211397 023309 4200272 123309 4211397 015309 4200272 114309 4200272 115309 4200272 119309 4211397 011309 4211398 004309 4211398 003309 4211398 001309 4211398 002309 4211398 013309 o_o o_o SNACK CRISPS 2 25 32 DIA CCW 4 5 16 WIDE COLUMN N DUAL 2 3 8 DIA CW 5 3 4 WIDE COLUMN fs O Ol Note Dual type selections require a pair of matching 2 3 8 diameter augers CCW on the left and CW on the right Please select matching auger 9 4211398 023309 from Candy type O N Product Ejectors Product ejectors can be added to the end of the augers to help move the product out of the tray area see Figure 11 Order P N 4025748 PRODUCT PUSHER P N 4025748 A10085 HELIX AT 3 O CLOCK Figure 11 Product Ejectors Combo II 8 P N 4216441 REVA CHANGING AUGER TIMING TRAY CONFI
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