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USER GUIDE

u-line.com

Troubleshooting

u-line.com

If you think your U-Line product is malfunctioning, read the 
CONTROL OPERATION section to clearly understand the 
function of the control.

If the problem persists, read the NORMAL OPERATING 
SOUNDS and TROUBLESHOOTING GUIDE sections below 
to help you quickly identify common problems and possible 
causes and remedies. Most often, this will resolve the 
problem without the need to call for service.

If you do not understand a troubleshooting remedy, or your 
product needs service, contact U-Line Corporation directly 
at +1.800.779.2547.

When you call, you will need your product Model and Serial 
Numbers. This information appears on the Model and Serial 
number plate located on the upper right or rear wall of the 
interior of your product.

All models incorporate rigid foam insulated cabinets to

provide high thermal efficiency and maximum sound

reduction for its internal working components. Despite this
technology, your model may make sounds that are
unfamiliar.

Normal operating sounds may be more noticeable because
of the unit’s environment. Hard surfaces such as cabinets,

wood, vinyl or tiled floors and paneled walls have a
tendency to reflect normal appliance operating noises.

Listed below are common refrigeration components with a
brief description of the normal operating sounds they
make. NOTE: Your product may not contain all the
components listed.

•  Compressor: The compressor makes a hum or pulsing 

sound that may be heard when it operates.

BEFORE CALLING FOR SERVICE

TROUBLESHOOTING GUIDE

ELECTROCUTION HAZARD. Never attempt to
repair or perform maintenance on the unit
before disconnecting the main electrical power.

Troubleshooting - What to check when problems occur:

NORMAL OPERATING SOUNDS

IF SERVICE IS REQUIRED

Troubleshooting

• 

Evaporator: Refrigerant flowing through an evaporator 

may sound like boiling liquid.

•  Condenser Fan: Air moving through a condenser may 

be heard.

•  Automatic Defrost Drain Pan: Water may be heard 

dripping or running into the drain pan when the unit is 

in the defrost cycle.

DANGER

!

Problem

Possible Cause and Remedy

Interior Light 

Does Not 

Illuminate

If the unit is cooling, it may be in 

Sabbath mode.

Light Remains 

on When Door 

Is Closed.

Turn off light switch if equipped. 

Adjust light actuator bracket on bottom 

of door.

Unit Develops 

Frost on 

Internal 

Surfaces.

Ensure the door is closing and sealing 

properly. 

Unit Develops 

Condensation 

on External 

Surfaces.

The unit is exposed to excessive 

humidity. Moisture will dissipate as 

humidity levels decrease.

Product is Not 

Cold Enough

Air temperature does not indicate 

product temperature. See CHECKING 

PRODUCT TEMPERATURE below.

Adjust the temperature to a cooler set 

point.

Ensure unit is not located in excessive 

ambient temperatures or in direct 

sunlight.

Ensure the door is closing and sealing 

properly.

Ensure the interior light has not 

remained on too long.

Ensure nothing is blocking the front 

grille, found at the bottom of the unit.

Ensure the condenser coil is clean and 

free of any dirt or lint build-up.

24

Summary of Contents for UCDE224CSS03A

Page 1: ...USER GUIDE SERVICE MANUAL Dispensers UCDE224 24 Cold Coffee Dispenser...

Page 2: ...oor Swing Door Adjust Maintenance Cleaning Cleaning Condenser Extended Non Use Operating Instructions First Use Control Operation Airflow and Product Loading Service Troubleshooting Wire Diagram Produ...

Page 3: ...lect products are available worldwide PRODUCT INFORMATION Looking for additional information on your product User Guides Spec Sheets CAD Drawings Compliance Documentation and Product Warranty informat...

Page 4: ...or moderate personal injury property or equipment damage This unit contains R600a Isobutane which is a flammable hydrocarbon It is safe for regular use Do not use sharp objects to expedite defrosting...

Page 5: ...n place so children may not easily climb inside If the unit is being removed from service for disposal check and obey all federal state and local regulations regarding the disposal and recycling of re...

Page 6: ...or reduce ice production on applicable models For best performance keep the unit out of direct sunlight and away from heat generating equipment In climates where high humidity and dew points are prese...

Page 7: ...he unit Always keep your working area dry NOTICE Electrical installation must observe all state and local codes This unit requires connection to a grounded three prong polarized receptacle that has be...

Page 8: ...ear CAUTION Unit can NOT be installed behind a closed cabinet door CUTOUT DIMENSIONS PRODUCT DIMENSIONS REAR FRONT TOP SIDE 24 1 4 616 mm 23 1 8 587 mm 25 635 mm 4 102 mm 16 15 16 430 mm 4 102 mm 7 17...

Page 9: ...over holes and attach to unit with two screws removed in step 2 using a T 25 Torx driver Tighten screws fully 4 Gently push unit into position Be careful not to entangle the electrical cord or water l...

Page 10: ...e installed Removing the grille Note Grille and display are attached The length of the display wire is sufficient to allow access to the front base components 1 Disconnect power to the unit 2 Loosen t...

Page 11: ...ng Units have a zero clearance for the door to open 90 when installed adjacent to cabinets Stainless Steel models require 2 1 8 54 mm door clearance to accommodate the handle if installed next to a wa...

Page 12: ...ove top and bottom hinge screws using a Philips screwdriver on the top and a 1 4 socket on the bottom 3 Align door squarely with cabinet 4 Make sure gasket is firmly in contact with cabinet all the wa...

Page 13: ...posite side of cabinet On some models there may be a nut behind one or both screws on either side Install bottom hinge Install two or three screws depending on model Replace nuts if used Install top h...

Page 14: ...ed temperature Time to reach set point varies based upon ambient temperature temperature of product loaded door openings etc U Line recommends allowing the unit to reach set points before loading To d...

Page 15: ...s reached and retighten locking nut 5 On infuser regulator pull out middle knob to unlock then turn knob until needle points at 7 turn right to increase left to decrease 6 Once set lock in place by pr...

Page 16: ...all The secondary regulator is set to a pressure that is either too high or low If there is less more nitro effect than desired use the black knob on the secondary regulator assembly to make a change...

Page 17: ...IDE FUNCTION COMMAND NOTES ON OFF Press and hold for 5 seconds Unit will turn On or OFF Adjust Temperature Press or and release When the display is flashing press or to adjust the set point temperatur...

Page 18: ...ratures and may freeze contents Do not block the front grille no additional clearance around sides top or rear of unit is needed for ventilation Do not install behind a closed door When loading leave...

Page 19: ...ned up promptly can penetrate the surface of the stainless steel and complete removal of the rust may not be possible CLEAN INTERIOR COMPONENTS Use warm or hot water with dish soap to clean all remove...

Page 20: ...faucet with warm soapy water Remove nose cone and soak in the cleaning solution for at least five minutes Rinse with clean potable water dry and reattach Infuser Filter Disassemble by unscrewing the c...

Page 21: ...inner lining or damage the cooling unit DO NOT use any type of heater to defrost Using a heater to speed up defrosting can cause personal injury and damage to the inner lining NOTICE The drain pan wa...

Page 22: ...nvironmental conditions more or less frequent cleaning may be necessary WARNING Disconnect electric power to the unit before cleaning the condenser NOTICE DO NOT use any type of cleaner on the condens...

Page 23: ...unit allow ice to thaw naturally 4 Clean and dry the interior of the unit Ensure all water has been removed from the unit 5 Clean the system See CLEANING 6 The door must remain open to prevent format...

Page 24: ...ompressor makes a hum or pulsing sound that may be heard when it operates BEFORE CALLING FOR SERVICE TROUBLESHOOTING GUIDE ELECTROCUTION HAZARD Never attempt to repair or perform maintenance on the un...

Page 25: ...ng the testing period 6 After 24 hours check the temperature of the water If required adjust the temperature control in a small increment see CONTROL OPERATION Causes which affect the internal tempera...

Page 26: ...e White Black N C 1 6 Evap Cond fan Light Evap temp Zone temp Door switch Compressor FUSE Programming U s e r I n t e r f a c e 42376_C If Applicable POWER CORD ASSEMBLY 220 240 VOLT PLUG LIVE BLACK 1...

Page 27: ...zed to replace the part in question The part that caused the damage must be returned to U Line in its entirety The part must be clearly labeled with the serial number of the unit it was removed from t...

Page 28: ...ing for warranty labor Units must be registered prior to warranty submittal Customers may register at www U Line com A proof of purchase is required We also accept the following information to update...

Page 29: ...ms warranty status Please provide the model serial number part number and part description Some parts will require color or voltage information If U Line requires the return of original parts we will...

Page 30: ...cian must observe all federal state and local laws regarding refrigerants Gloves and Eye Protection must be used R 600a is considered non toxic but is flammable when mixed with air Keep a dry powder t...

Page 31: ...cuum pump and recovery equipment should be at least 10 feet from the work area It is recommended that a simple LPG gas detector is on site during service Ensure that all R 600a is removed from the sys...

Page 32: ...erant is left within the system prior to repair simple venting is not sufficient Evacuate and charge with dry nitrogen for leak checks Repair leaks or replace system parts as required When re brazing...

Page 33: ...Install a Schrader Type access port on the compressor process stub Evacuate the system to 100 microns prior to charging Weigh in the R 600a charge using a refrigerant scale run compressor an extra two...

Page 34: ...erature Hot Warm Warm Extremely cold near inlet Outlet below room temperature Lower than normal Partial Restriction Somewhat lower than normal vacuum Warm near room temperature Very hot Top passes war...

Page 35: ...h are not hot or frozen Do not touch a bare circuit board unless you are wearing an anti static wrist strap that is grounded to an electrical ground or grounded water pipe Handle circuit boards carefu...

Page 36: ...2547 for assistance NORMAL OPERATING SOUNDS All models incorporate rigid foam insulated cabinets to provide high thermal efficiency and maximum sound reduction for its internal working components Des...

Page 37: ...Mode OHM thermistor Frost Buildup Inside Unit Door Ajar or Restricted from Closing Check door clearance to adjoining cabinetry Check distribution of product in unit Thermistor failure OHM thermistor...

Page 38: ...e Plunger Switch Replace Main Board Replace Fuse Replace Power Cord Alert Customer Of Power Failure Is the Plunger Switch Operating Properly Inspect Customer UI and Data Cable Connect Test Display Cyc...

Page 39: ...LED activated with button activation CONTROL FUNCTION GUIDE FUNCTION COMMAND NOTES Defrost Duration Enter menu by pressing for more than 5 seconds Use or to increase reduce defrost duration Press to...

Page 40: ...E Zone Thermistor If the zone thermistor in the unit fails the unit will continue to cool in a backup mode Self Preservation Mode to preserve the integrity of the contents The unit will otherwise oper...

Page 41: ...or units defrost every 12 hours of compressor runtime for 45 minutes If you have verified that the unit does not have an ambient air leak utilize the Control Operation Service section and adjust unit...

Page 42: ...ondensation that may have appeared on glass doors and shelves Note If the unit is set to sabbath mode the evaporator fan will no longer respond to the state of the door switch In order to operate effi...

Page 43: ...ator cover vents and push air out at fan mounting location 15 Installation is the reverse of removal 16 Care must be taken to assure the bottom of the evaporator cover is reinstalled behind the front...

Page 44: ...d or other natural disasters The product must be installed operated and maintained in accordance with your product s User Guide The remedies described above for each warranty are the only ones that U...

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