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USER GUIDE

 Troubleshooting 1

SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • 

SERVICE

Troubleshooting

BEFORE CALLING FOR SERVICE

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 SERVICE IS REQUIRED

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

1.414.354.0300

.

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. 

NORMAL OPERATING SOUNDS

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.

• 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.

TROUBLESHOOTING GUIDE

DANGER

!

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:

Problem

Possible Cause and Remedy

Digital Display 

and Light Do Not 

Work.

Ensure power is connected to the unit.
If the unit is cooling, it may be in Sabbath 

mode.

Interior Light 

Does Not 

Illuminate.

The light bulb may be defective.
If the unit is cooling, it may be in Sabbath 

mode. 

Light Remains on 

When Door Is 

Closed.

For glass door models, press the light icon 

and close the door.
Check reed switch.

Unit Develops 

Frost on Internal 

Surfaces.

Frost on the rear wall is normal and will melt 

during each off cycle. 
If there is excessive build-up of 1/4" or 

more, manually defrost the unit. 
Ensure the door is closing and sealing 

properly. 
High ambient temperature and excessive 

humidity can also produce frost. 

Unit Develops 

Condensation on 

External 

Surfaces.

The unit is exposed to excessive humidity. 

Moisture will dissipate as humidity levels 

decrease.

Digital Display 

Functions, But 

Unit Does Not 

Cool.

Ensure the unit is not in “Showroom Mode.”
Momentarily unplug or interrupt power 

supply to the unit.

Digital Display 

Shows ER or E 

Followed by a 

Number.

E3 indicates the door may be opened too 

long. Ensure the door is closing properly. 

For other error codes contact U-Line 

Customer Service.

33

Summary of Contents for U-2224ZWCS-00A

Page 1: ...USER GUIDE SERVICE MANUAL Model U 2224ZWCS 00A...

Page 2: ...Plinth Installation Door Swing Door Stop Door Adjust Maintenance Cleaning Cleaning Condenser Extended Non Use Operating Instructions First Use Control Operation Sabbath Mode Airflow and Product Loadin...

Page 3: ...ldwide U Line RIGHT PRODUCT RIGHT PLACE RIGHT TEMPERATURE PRODUCT INFORMATION Looking for additional information on your product User Guides Spec Sheets CAD Drawings Compliance Documentation and Produ...

Page 4: ...r death WARNING Warning means that failure to follow this safety statement could result in serious personal injury or death CAUTION Caution means that failure to follow this safety statement may resul...

Page 5: ...r take off the doors and leave shelves in 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 re...

Page 6: ...and 100 F 38 C Higher ambient temperatures may reduce the unit s ability to reach low temperatures and or reduce ice production on applicable models For best performance keep the unit out of direct s...

Page 7: ...e 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 bee...

Page 8: ...nt grille plinth strip base fascia must NOT be obstructed CAUTION Unit can NOT be installed behind a closed cabinet door U Line products are designed and manufactured to be installed in the specified...

Page 9: ...ensions 1 SAFETY INSTALLATION INTEGRATION OPERATING INSTRUCTIONS MAINTENANCE SERVICE Product Dimensions 3 5 8 to 4 5 8 92 mm to 118 mm 33 11 16 to 34 11 16 856 to 881 mm 23 5 8 600 mm Not Including Ha...

Page 10: ...nsions in each unit s Installation Guide Each door can be opened individually one at a time without interference However to ensure unobstructed door swing opening both doors at the same time 1 4 6 4 m...

Page 11: ...a 2 Phillips head screwdriver 3 Completely slide the unit into its position in the cabinet Be certain unit height is properly adjusted See GENERAL INSTALLATION 4 Open door completely Make certain door...

Page 12: ...RATION OPERATING INSTRUCTIONS MAINTENANCE SERVICE 5 Using a 3 32 drill bit drill 3 pilot holes 5 8 16 mm deep into cabinetry frame using the anti tip bracket as a template 6 Install the 3 remaining 3...

Page 13: ...unit rear height of 1 8 3 mm less than the opening s rear height Shorten the unit height in the front by adjusting the front legs This allows the unit to be gently tipped into the opening Adjust the...

Page 14: ...to match your surrounding furniture Finish front back and edges to prevent warping Carefully follow the manufacturer s recommendations for finish application and cure times 3 Apply double sided tape...

Page 15: ...a When using the unit the grille plinth strip base fascia must be installed WARNING DO NOT touch the condenser fins The condenser fins are SHARP and can be easily damaged Removing the grille plinth st...

Page 16: ...the door to open 90 Allow for additional space for any knobs or pulls installed on the integrated panel frame Stainless Steel models that are installed adjacent to a wall require 2 1 4 57 mm door clea...

Page 17: ...imately 90 2 Remove hinge cover by lifting top and bottom of hinge cover and sliding the cover inwards to remove from hinge 3 Once cover is removed slide hinge pin into hole as shown Pin should slide...

Page 18: ...make sure the door gasket is not pinched on the hinge side of the door CAUTION Do not attempt to use the door to raise or pivot your unit This would put excessive stress on the hinge system Removing...

Page 19: ...factory Initial startup requires no adjustments NOTICE U Line recommends allowing the unit to run overnight before loading with product When plugged in the unit will begin operating under the factory...

Page 20: ...Press and release Leave interior light on for 3 hours Adjust temperature Press and release The zone you are setting will have its light turned on top zone first Press to adjust set point temperature D...

Page 21: ...nternal temperatures and set points View a full list of Star K certified U Line units at www star k org To enable Sabbath Mode 1 Press 4 and hold for ten seconds and release the F C symbol will flash...

Page 22: ...low to perform at its highest efficiency Do not block the front grille or the unit will not perform as expected Do not install the unit behind a door When loading your unit leave space between the eva...

Page 23: ...ect of wine is your own palate Do not be afraid to make mistakes Experiment discover but most of all enjoy yourself and your new U Line product Guide To Common Styles Of Wine Matching Food and Wine Al...

Page 24: ...entation of the cork has a rich and fascinating history dating back to the late 1800 s A phylloxera root louse devastation to the vineyards severely limited the supply of great wines Restaurateurs wou...

Page 25: ...iment is left undistributed and particles are not suspended vibration in a storage environment is not an issue Wines can become flat or tired when voids and vacuums are created inside the wine bottle...

Page 26: ...U Line Wine Captain model is designed to impress and inspire anyone with an interest in wine by providing cellar conditions in stylish undercounter units U Line Wine Captain models offer stable storag...

Page 27: ...the wine remains in contact with the cork which ensures the cork does not become dry U Line recommends arranging wine bottles as shown in the illustrations below Racks 1 through 5 Rack 6 Larger diame...

Page 28: ...ite will cause the graining in the stainless steel to become blurred Rust not cleaned up promptly can penetrate the surface of the stainless steel and complete removal of the rust may not be possible...

Page 29: ...n pan and possibly damaging water sensitive flooring the unit must be removed from cabinetry To defrost 1 Disconnect power to the unit 2 Remove all products from the interior 3 Prop the door in an ope...

Page 30: ...essary Depending on environmental conditions more or less frequent cleaning may be necessary WARNING Disconnect electric current to the unit before cleaning the condenser NOTICE DO NOT use any type of...

Page 31: ...et NOTICE Do not remove the track rails from the cabinet To insert wine racks in the cabinet 1 Align the left and right rack channels with the tracks in the cabinet Ensure an even track engagement on...

Page 32: ...returned to service 3 If ice is on the evaporator allow ice to thaw naturally 4 Clean and dry the interior of the unit Ensure all water has been removed from the unit 5 The door must remain open to pr...

Page 33: ...d Compressor The compressor makes a hum or pulsing sound that may be heard when it operates Evaporator Refrigerant flowing through an evaporator may sound like boiling liquid Condenser Fan Air moving...

Page 34: ...ngs and the time the door is open The time the internal light is illuminated This mainly affects product on the top rack or shelf Digital Display Shows 1 16 or 99 A factory test mode may be enabled Ad...

Page 35: ...GHT CONDENSER FAN BOTTOM ZONE TEMP BOTTOM ZONE EVAP TEMP ZONE 2 LIGHT T O D I S P L A Y T O U S B GROUND GREEN or GREEN W YELLOW P R O G R A M I N G OPEN 115 VOLT PLUG 220 240 VOLT PLUG GROUND GREEN o...

Page 36: ...a part the servicer is authorized 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...

Page 37: ...12 represents the production month In most cases warranty status can be verified by the production date information within the serial number Alternatively a Proof of Purchase or equivalent may submitt...

Page 38: ...for extrusions 80 54470 00 18 Gasket Horizontal injection molded 80 54129 00 19 Grille w screws 80 54040 00 20 Handle w logo 80 54214 00 21 Hinge covers 2 pcs 80 54001 00 22 Hinge mounting hole cover...

Page 39: ...l be shipped at no charge after U Line confirms warranty status Please provide the model serial number part number and part description Some parts will require color or voltage information If U Line r...

Page 40: ...l 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 type fire extinguisher in the...

Page 41: ...pment 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 system prior to brazing any pa...

Page 42: ...tem 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 the system must be purged wi...

Page 43: ...ess 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 minutes to clear the charg...

Page 44: ...r than normal Warm near room temperature Hot Warm Warm Extremely cold near inlet Outlet below room temperature Lower than normal Partial Restriction Somewhat lower than normal vacuum Warm near room te...

Page 45: ...ap that is grounded to an electrical ground or grounded water pipe Handle circuit boards carefully and avoid touching components To measure the start winding resistance measure across the C and S pins...

Page 46: ...ion of temperature and thermistor performance can be identified by directly viewing thermistor readings in the service mode Component failure issues can be identified through service mode menu 19 Comp...

Page 47: ...codes Refer to 14 Error Log in Service Mode Thermistor failure Check Error Log in Service Mode OHM thermistor Frost Buildup Inside Unit Door Ajar or Restricted from Closing Check door clearance to adj...

Page 48: ...w chart below to help diagnose the issue Before beginning it is important to first verify the unit is not simply set to sabbath mode System Condition Suction Pressure Suction Line Compressor Discharge...

Page 49: ...have been ruled out as being faulty but the unit continues to have operating issues it is most likely due to a configuration error Configuration errors can be cleared by restoring the unit to its fact...

Page 50: ...ormally Evaporator thermistor errors will be displayed in the error log Always assure that all thermistor connections are clean and dry Whenever opening a thermistor connection be sure to apply a fres...

Page 51: ...on activation 7 Alert LED No button Illuminates with Hidden Button Illuminates with required displayed alerts 1 2 3 4 5 6 7 CONTROL FUNCTION GUIDE FUNCTION COMMAND DISPLAY OPTIONS ON OFF Press and rel...

Page 52: ...you placed the thermistor in an icebath the actual thermistor reading when viewing actual temperature would read 35 F In the unit this would cause the cabinet to push itself 3 cooler To view pure the...

Page 53: ...frost duration 0 to 99 minutes Up down to select light icon to enter and save change 14 Display error log Use up down to access and light bulb key to view 15 Clear error log Use up down to access and...

Page 54: ...set point minus offset 11 View thermistor 4 set point minus offset 12 DEFROST INTERVAL ADJUST 3 TO 24 HOURS This will adjust the interval between defrosts from 3 to 24 hours Adjusting from the factory...

Page 55: ...es the compressor has run in the prior cycle or current cycle if the compressor was running when service mode was entered 24 ACTIVATE DEFROST Turns on the hot gas bypass valve allowing hot gas to circ...

Page 56: ...rrows to scroll to correct model number from chart Push and release the light icon Unit flashes OFF ON then locks in model 1000 MODEL 2000 120V MODEL 2000 230V MODEL 1215R 07 2218R 05 2245R 55 1215WC...

Page 57: ...F C Defrost Duration Minutes 45 Next Defrost Hours 12 Thermistor Four OFFSET 0 Thermistor Three OFFSET 0 Thermistor Two OFFSET 0 Thermistor One OFFSET 2 Thermistor One Differential Up 1 Thermistor On...

Page 58: ...used for defrost purposes Thermistor three is located along the right hand side wall in the bottom zone It is used to maintain the operating temperature within that zone Thermistor four is located on...

Page 59: ...IDE Defrost 1 Defrost These units are automatic cycle defrost unit will defrost itself when the control sensor is satisfied of internal temperatures Defrost mode ends when control sensor asks for cool...

Page 60: ...improper use maintenance installation service repair acts of God fire flood or other natural disasters The product must be installed operated and maintained in accordance with your product s User Guid...

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