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Section 5

Before Calling for Service

Part Number 5031216

01/09

5-1

Section 5

Before Calling for Service

Checklist

If a problem arises during operation of your dispenser, follow the checklist below before calling service. Routine 
adjustments and maintenance procedures are not covered by the warranty. 

Problem

Possible Cause

To Correct

Dispenser will not dispense ice (and NO 
SOUNDS are heard when machine is 
activated).

No power.

Check electrical connection.

Loose wire in electrical system.

Thoroughly check all wire connections.

Dispenser overloaded with ice.

Remove ice from dispenser until unit will 
operate.

Motor not working.

Check thermally protected motor. 
Replace motor or capacitor if necessary.

Dispenser will not dispense ice (motor 
runs but no ice movement is heard in 
bin).

No ice in bin.

Fill dispenser with ice.

Door not opening.

Check rocking chute mechanism or 
electric solenoid operation.

Paddle wheel pin slipped from the paddle 
wheel.

Replace paddle wheel pin.

Excessive clustering or bridging of ice.

Loaded ice not broken up. (Caution: 
Super cooled ice is not covered by the 
Servend warranty.)

Break ice clusters before manually filling 
the dispenser. (See ice 
recommendations.)

Excessive water spilling from the ice 
machine.

Adjust ice machine to eliminate water 
spillage.

Poorly adjusted ice machine.

Adjust ice machine to eliminate large 
waffle shapes.

Extremely low usage of the dispenser.

Lower the ice level in the bin.

Ice dispenses continuously.

Misaligned microswitch.

Adjust microswitch.

Agitation timer set incorrectly.

Test agitation timer.

Thumping noise or irregular sound at a 
particular area of the dispenser.

Shaved ice clusters in the bitn.

Remove clusters, discover why ice is 
shaving, and then repair.

Dispensing crushed ice or reduced 
dispensing speed.

Water spillage from ice machine into 
dispenser bin.

Adjust ice machine.

Agitation timer.

Test agitation timer.

Bridge of ice sheet is too thick.

Adjust ice machine.

Paddle wheel area broken or cracked.

Replace paddle wheel area.

Ice clusters in bin.

Break up or remove clusters.

Door not fully open.

Adjust door.

Door will not close.

Ice jammed in chute.

Adjust bridge in ice machine or, when 
manually filling, break up clusters.

Door and/or door lock has come out of 
place.

Replace door and lock into proper 
position.

Mounting brackets for rocking chute have 
spread too far apart.

Bend parts into shape.

Summary of Contents for Multiplex MII-302

Page 1: ...nual is updated as new information and models are released Visit our website for the latest manual www manitowocfsg com Leader in Ice Beverage Dispensers MII 302 with Flex Manifold Series Ice Beverage Dispensers Part Number 5031216 01 09 ...

Page 2: ...e sure to read the Warning statement before proceeding and work carefully Caution Text in a Caution box alerts you to a situation in which you could damage the equipment Be sure to read the Caution statement before proceeding and work carefully Important Text in an Important box provides you with information that may help you perform a procedure more efficiently Disregarding this information will ...

Page 3: ...ation 2 3 Location Requirements for Top Mounted Ice Machine Installations 2 3 Pre installation Checklist 2 4 Bulk Syrup System also 2 4 Double Check 2 5 Also Consider The Location Of The Following Items Before Installation 2 5 Additional Checks for Top Mounted Ice Machine Installations 2 5 Assembly 2 6 Installing Baffle for Ice Machine Installations 2 6 S Series Baffle 2 6 Q Series Baffle 2 6 Elec...

Page 4: ...3 1 Sequence of Operation 3 2 Ice Recommended for Dispensing 3 2 Ice Storage and Dispensing 3 2 Beverage Valves 3 2 Rocking Chute Ice Dispensing 3 2 Carbonation 3 2 Rocking Chute Ice Dispensing 3 2 Syrup Delivery System 3 3 Back Room Package 3 3 Racking 3 4 B I B 3 4 Pumps 3 4 Auto Bag Selectors 3 4 Figal System 3 4 Figal Tanks 3 4 Non Adjustable Agitation Timer 3 4 Operation Checks and Adjustment...

Page 5: ...on front Serviceable Gear Motor Removal 4 5 Front Serviceable Gear Motor Removal 4 5 Sanitizing 4 6 Beverage System Cleaning 4 6 Bag In Box System Sanitation 4 6 Figal Beverage System 4 7 Shipping Storage and Relocation 4 7 Section 5 Before Calling for Service Checklist 5 1 Drink Troubleshooting 5 2 Pump Troubleshooting 5 3 ...

Page 6: ...Part Number 5031216 01 09 4 Table of Contents ...

Page 7: ... models HOW TO READ A MODEL NUMBER Accessories BAFFLE FOR MANITOWOC ICE MACHINE When installing a Manitowoc Ice Machine on a dispenser a baffle kit is required for proper installation The baffle kit is designed to prevent ice from lying against the front of the ice machine and melting down the front of the dispenser There are two different baffle kits available for S series ice machines one kit is...

Page 8: ...The serial number is listed on the SERIAL NUMBER DECAL affixed to the dispenser Serial Number Location Warranty Information Consult your local MBE Distributor for terms and conditions of your warranty Your warranty specifically excludes all beverage valve brixing general adjustments cleaning accessories and related servicing Your warranty card must be returned to MBE to activate the warranty on th...

Page 9: ...ler Contact your Manitowoc Beverage Equipment Service Agent or call Manitowoc Beverage Equipment for information regarding start up services Dimensions Important Failure to follow these installation guidelines may affect warranty coverage MODEL A B C D E MDH 302 42 75 108 59 cm 30 50 77 47 cm 22 50 57 15 cm 38 75 98 43 cm 20 50 52 07 cm ...

Page 10: ...ximum Area for Cutout D C B A Model Maximum Minimum A B C D MDH 302 38 75 98 43 cm 20 50 52 07 cm 3 00 7 62 cm 32 00 81 28 cm Caution Cutting the countertop may decrease its strength Counter must be braced to support the dispenser countertop weight plus ice storage capacity and weight of icemaker if applicable ...

Page 11: ...Front of ice machine to be flush with front of dispenser Some ice machines may overhang at the back of the dispenser Drains A separate drain line is required for the ice machine in addition to a drain line for the ice beverage dispenser Dispensers may require an adapter kit to install some top mounted ice machines Contact your local distributor for the correct adapter kit For full information abou...

Page 12: ...CO2 regulator set Product connectors for Figal tank Gas connectors for Figal tank Beverage dispenser Beverage tubing CO2 tank Figal beverage tanks Stepless Oetiker clamps Chain for CO2 tank B I B connectors B I B regulator set B I B rack B I B syrup boxes CO2 regulator set Beverage dispenser Beverage tubing CO2 tank Carbonator Stepless Oetiker clamps Chain for CO2 tank Syrup connectors for Figal t...

Page 13: ... weight of the stored ice Water line Drain Power outlet Heating and air conditioning ducts Location Avoid placing the dispenser and or ice machine near heat sources such as radiators ovens refrigeration equipment and direct sunlight Clearances Six inch 15 2 cm clearance on all sides of the icemaker is needed Front of icemaker to be flush with front of dispenser The front of the icemaker must be fl...

Page 14: ... in the kit 6 If there are no screws on the ice machine step 2 pierce the thin plastic countersunk holes install the backing plates and install the deflector using the screws from the kit 7 Replace the front panels S Series Ice Machine Q Series Baffle 1 Position baffle on top of water well with tab on the front and the other tab inside the water well 2 Mount the baffle on the left side of the ice ...

Page 15: ...ed into an appropriate outlet that is properly installed and grounded in accordance with all local codes and ordinances Warning All wiring must conform to local state and national codes Important Due to continuous improvements this information is for reference only Please refer to the dispenser serial number tag to verify electrical data Serial tag information overrides information listed on this ...

Page 16: ... pulling on cord To unplug grasp the plug not the cord Unplug from outlet when not in use and before servicing or cleaning Do not operate any appliance with a damaged cord or plug or after the appliance malfunctions or is dropped or damaged in any manner Contact the nearest authorized service facility for examination repair or electrical or mechanical adjustment g For a permanently connected appli...

Page 17: ...spenser valves and water manifolds The water supply must first be connected to the carbonator pump not shown before plumbing to connection A shown on plumbing diagram The carbonator pump deck must be within six feet of the dispenser for optimum performance See BIB installation diagram for system pressure settings A check valve must be installed in the water supply line 3 feet from the noncarbonate...

Page 18: ...imal pressure For high foam decrease the pressure for spitting popping increase the pressure Dispenser Valves Ice Storage MII 302 10 or 12 300 lbs MDH 302 w EM 10 or 12 300 lbs MIN MAX Incoming Plain Water Pressure 40 psi dynamic 70 psi static Plain Water Pressure to Carb Tank 55 psi 65 psi Ambient Temperature 40 F 4 C 105 F 41 C Co2 Pressure Primary 90 psi 100 psi Electrical 115V 60Hz 1 230V 50 6...

Page 19: ... The Unit is shipped with connecting lines terminating under the unit It will be necessary to make a 90 turn down through the counter top to connect to the conduit It will also be necessary to fully insulate this new added section before passing through the counter top or before hooking to main conduit Carb Water Lines Unit has two 2 carb water lines one for each flex manifold Use 2 x elbow and 6 ...

Page 20: ...it through 90 bend connection and down close to straight conduit connection Locate Unit properly on counter and secure to counter as shown in Unit Installation Instructions Finish connections to Conduit with 3 8 x 3 8 and x straight barb connectors and U bend adapters as needed FULLY INSULATE and finish with tape wrap all these connections to the conduit 3 Install plumbing drains see below and ins...

Page 21: ... Beverage System Dispenser Upon completion of the beverage dispenser and or system installation all tubing dispenser and system components must be cleaned and sanitized prior to use NOTE At installation equipment dispensers and tubing get moved through many environments dirt dust chases insulation drywall etc It is an important procedure and best practice to address cleaning to deliver the best qu...

Page 22: ...Installation Instructions Section 2 2 14 Part Number 5031216 01 09 THIS PAGE INTENTIONALLY LEFT BLANK ...

Page 23: ...ED WATER CARBONATED WATER NON CARBONATED WATER SYRUP 2 CO MII 302 with Valves System Overview Multiplex CO 2 Cylinder Tap Water Tap Water Bag In Box Syrup Carton BIB Syrup Pump NOTE This is a simplified schematic to show the basic operation of the beverage system Countertop Dispenser Carbonated Non carbonated Beverage Manifolds Merchandiser Nozzles Key Switch Drainpan Grid Drainpan Splash Panel No...

Page 24: ...f the chute pushes upward on the door lock The door opens until it contacts the stops in the mounting brackets The plastic arm on the ice chute also activates the lever of the ice dispensing switch When activated the micro switch starts the gear motor The gear motor turns the paddle wheel and agitator bar CARBONATION The purpose of the carbonator is to take regular tap water at street water pressu...

Page 25: ...re of 40 psi and maximum static pressure of 70 psi 2 Carbonator Water pump motor Powers the water pump The water pump motor is part of the carbonator pump deck 3 Carbonator Water pump Pumps tap water into the carbonator tank The water pump is part of the carbonator The incoming water for the carbonator must be first run through the pump before connecting to the proper cold plate inlet 4 Internal E...

Page 26: ...erage or post mix syrup A small CO2 tank pushes the beverage out of the figal tank FIGAL TANKS The stainless steel Figal beverage tanks are easy to store and connect When using the Figal tanks Use a gas connector for the inlet fitting of the tank Use a syrup connector for the outlet fitting of the tank If more than one Figal tank is connected in series when changing tanks remove the tank closest t...

Page 27: ...gainst the rocking chute When the ice delivery switch clicks measure the distance from the door stops on the rocking chute bracket to the door The distance between the two must be no more than 1 4 0 64 cm but no less than 1 16 0 16 cm The left side of the rocking chute has a tab that pushes up on the ice delivery switch To adjust it use needle nose pliers and bend the arm of the switch up or down ...

Page 28: ...Operation Section 3 3 6 Part Number 5031216 01 09 THIS PAGE INTENTIONALLY LEFT BLANK ...

Page 29: ...or surfaces of the unit with warm water and a clean cloth Wipe again with a clean dry cloth Clean the dispensing valves 6 Remove nozzles and diffusers from beverage valves Nozzle Removal 7 Rinse nozzle and diffuser with warm clean water 8 Clean nozzles and diffusers with soapy water and a soft bristle brush 9 Clean the underside of the beverage valves with warm soapy water Rinse with clean damp to...

Page 30: ...ing the directions for mixing and applying the sanitizer 7 Sanitize the ice bin and cold plate with the sanitizing solution for at least 10 seconds 8 Allow to air dry Do not rinse Re assembling the dispenser parts 9 Re assemble parts in the following order Bin liner Paddle wheel Agitator Paddle wheel pin Ice chute Merchandiser 10 Hand tighten all knurled fasteners 11 Pour in fresh sanitary ice and...

Page 31: ...her if not dispensed Disassembly DISASSEMBLY FOR CLEANING AND MAINTENANCE NOTE Sanitize the ice dispenser at Initial Start up in addition to monthly sanitizing You will need a slotted screwdriver in order to disassemble Disassemble parts in the following order A Merchandiser B Ice chute C Paddle wheel or agitator pins D Agitator E Paddle wheel F Bin liner G Paddle wheel area Beverage Ice Dispenser...

Page 32: ...m in any position remove hitch clip pin from the mushroom bushing on the rear of the ice bin b Push the agitator bar toward the bushing to remove it from the paddle wheel hub NOTE If a top mount ice machine is installed sliding the ice machine to one side will make bin component removal easier If the ice machine is hard plumbed it will need to be disconnected Non front Serviceable Front Serviceabl...

Page 33: ...ctor from the gear motor wire leads 8 Remove the pin in front of the gear motor 9 You must be able to remove the gear motor from the dispenser 10 To install a replacement gear motor reverse this procedure FRONT SERVICEABLE GEAR MOTOR REMOVAL These instructions are provided as a guide for the removal of the gear motor Depending on the model number of your dispenser these instructions may vary sligh...

Page 34: ...sanitizer Bag In Box bag connector 1 Prepare the following in the buckets Bucket 1 warm to hot tap water for rinsing Bucket 2 mild detergent and warm to hot water Bucket 3 mix a solution of unscented bleach 5 Na CL O or commercial sanitizer and warm to hot water Mixture must supply 100 PPM available chlorine 1 4 oz bleach to 1 gallon water 2 Disconnect the syrup line side of the bag in box connect...

Page 35: ...ly 100 PPM available chlorine 1 4 oz bleach to 1 gallon water 2 Disconnect all product and water lines from product tanks and remove carbonator 3 Locate the Figal syrup tank for the circuit to be sanitized Remove both quick disconnects from the Figal syrup tank Rinse quick disconnects in tap water 4 Connect rinse tank to the syrup line Draw clean rinse water through the valve until syrup is flushe...

Page 36: ...Maintenance Section 4 4 8 Part Number 5031216 01 09 THIS PAGE INTENTIONALLY LEFT BLANK ...

Page 37: ...y the Servend warranty Break ice clusters before manually filling the dispenser See ice recommendations Excessive water spilling from the ice machine Adjust ice machine to eliminate water spillage Poorly adjusted ice machine Adjust ice machine to eliminate large waffle shapes Extremely low usage of the dispenser Lower the ice level in the bin Ice dispenses continuously Misaligned microswitch Adjus...

Page 38: ...valve will not dispense anything Is there power to the valve Broken wire or loose connection Replace repair wire or connector Bad microswitch Replace microswitch Beverage dispensed is too sweet Is the ratio brix of the drink correct Flow control out of adjustment Adjust the flow control Insufficient soda flow due to low carbonator pressure Adjust CO2 pressure or change the tank Low CO2 pressure du...

Page 39: ... probe harness Pump motor intermittent Problem with probe or probe harness Pump motor does not pump Water pressure from water source is not high enough Verify water pressure leading into pump inlet is 40 psi minimum 1 Remove probe electronics 2 Pass magnetic tip of screwdriver by lower end of tube extending from electronics package 3 Reed switch will close 4 Carbonator operates ...

Page 40: ...ture Drive Sellersburg IN 47172 USA Ph 812 246 7000 Fax 812 246 7024 Visit us online at www manitowocfsg com 2008 Manitowoc Continuing product improvements may necessitate change of specifications without notice Part Number 5031216 01 09 ...

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