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USER GUIDE

Troubleshooting

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 +1.414.354.0300.

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.

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.

25

Summary of Contents for UHRE524-SG81A

Page 1: ...USER GUIDE SERVICE MANUAL Model UHRE524 SG81A...

Page 2: ...on Grille Installation Door Swing Door Stop Door Adjust Interior Adjustments Maintenance Cleaning Cleaning Condenser Extended Non Use Operating Instructions First Use Control Operation Airflow and Pro...

Page 3: ...HT PRODUCT RIGHT PLACE RIGHT TEMPERATURE PRODUCT INFORMATION Looking for additional information on your product User Guides Spec Sheets CAD Drawings and Product Warranty information are available digi...

Page 4: ...oderate 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 Do n...

Page 5: ...e 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 refriger...

Page 6: ...ures 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 sunlight and away from heat generating e...

Page 7: ...it 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 been pl...

Page 8: ...al connection in the rear CAUTION Unit can NOT be installed behind a closed cabinet door CUTOUT DIMENSIONS PRODUCT DIMENSIONS REAR FRONT TOP SIDE 4 102 mm 7 178 mm 33 7 8 860 mm to 34 7 8 886 mm 23 3...

Page 9: ...ide 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 mm of space needs to be maintained bet...

Page 10: ...roper fit Also test to make sure the door opens and closes freely 3 Remove grille and place a mark on the floor at the front of the unit Also place a mark on the floor in the center of the unit 4 Remo...

Page 11: ...ing 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 Readjust the front legs to level the unit after it is corre...

Page 12: ...t the grille must be installed WARNING DO NOT touch the condenser fins The condenser fins are SHARP and can be easily damaged Removing the grille 1 Disconnect power to the unit 2 Loosen the two screws...

Page 13: ...l 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 clearance on hinge side to allow for door h...

Page 14: ...90 2 Slide hinge pin into hole as shown Pin should slide into place stopping the door at 90 if the pin does not go into the hole shown hold the door less than 90 open and try again 3 To fully seat th...

Page 15: ...ch pair of Torx head screws both the upper and lower hinge plates 3 Square and align door as necessary 4 Tighten Torx head screws on hinge 5 Reinstall gasket into the channel starting at the corner RE...

Page 16: ...rned off during installation simply press and the unit will immediately switch on To turn the unit off press If the temperature displayed is different than selected the unit is progressing towards the...

Page 17: ...for 5 seconds The display will change units Hide Display Hold and press Display will turn off when door is closed Unit will continue to operate Repeat command to turn on display Enable Sabbath Mode Pr...

Page 18: ...rol Operations sections for details and other options For more information about BrightShield visit www u line com For more information about Vyv Antimicrobial Light Technology visit www vyv tech Test...

Page 19: ...es Not all bottles and cans will fit on every shelf and wine rack Larger diameter champagne and Magnum bottles only fit on wine racks when noted on the product specifications When determining capaciti...

Page 20: ...es Note The slides on the frame have a thin coating which is used to block moisture and provide lubrication Use care when handling Slide and Secure Storage Bin Installation 1 Insert empty storage bin...

Page 21: ...eel 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 Integrated Models To clean integrated panels us...

Page 22: ...tive 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 open position 2 in 50 mm minimum 4 Allow t...

Page 23: ...mental 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 condenser uni...

Page 24: ...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 prevent formation of mold and mildew Open...

Page 25: ...akes 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 d...

Page 26: ...ing 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 temperatures of th...

Page 27: ...ndenser fan L T Zone temp L T Door switch R B Door switch L T Evap temp R B Zone temp R B Evap temp Compressor Open Programming W I F I A n t e n n a D i a g n o s t i c s V C C C o n t r o l U s e r...

Page 28: ...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 the dat...

Page 29: ...r 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 warran...

Page 30: ...3 00 10 DRAIN PAN 80 54217 00 11 DRIER 80 54055 00 12 EVAPORATOR ASSEMBLY 80 55486 00 13 EVAPORATOR COVER 80 55485 00 14 EVAPORATOR FAN W COVER 80 55457 00 15 GASKET DOOR 80 54039 00 16 GLASS SHELF 80...

Page 31: ...ranty 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 inform...

Page 32: ...ust 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 type fi...

Page 33: ...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 system p...

Page 34: ...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 the sy...

Page 35: ...ll 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 minu...

Page 36: ...mely 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 warm Lower passes cool near ro...

Page 37: ...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 carefully an...

Page 38: ...istance 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 tec...

Page 39: ...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 Displa...

Page 40: ...ger 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 Cycle Pow...

Page 41: ...t this mode hold the light key and the power key for 5 seconds The display will flash once and beep and the degree symbol will begin to flash When the degree symbol is flashing the unit will allow the...

Page 42: ...mp alarm limit Model 55 only 1 THERMISTOR 1 ZONE This shows the pure thermistor reading with no offsets taken into account 2 THERMISTOR 2 EVAPORATOR This shows the pure thermistor reading with no offs...

Page 43: ...ODEL 54 ONLY 31 LOW TEMP ALARM LIMIT MODEL 55 ONLY 32 HIGH TEMP ALARM LIMIT MODEL 55 ONLY Display Relay Output Option 0 Exit Option 1 Relay 1 Option 2 Relay 2 Option 3 Relay 3 Option 4 Relay 4 Option...

Page 44: ...Fan 43 BD524 1A Compressor Top Left Valve Bot Right Valve Light 1 Light 2 Evap Fan Evap Fan 2 Cond Fan 48 WD524 1A Compressor Top Left Valve Bot Right Valve Light 1 Light 2 Evap Fan Evap Fan 2 Cond Fa...

Page 45: ...e operating temperature within that zone Thermistor two Evaporator Located on the evaporator It is used for defrost THERMISTOR FAILURE Zone Thermistor If the zone thermistor in the unit fails the unit...

Page 46: ...hours of compressor runtime for 45 minutes If you have verified that the unit does not have an ambient air leak refer to the Control Operation Service section and adjust unit to defrost every 9 hours...

Page 47: ...te air and clear any condensation 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...

Page 48: ...mounting location 13 Installation is the reverse of removal 14 Care must be taken to assure the bottom of the evaporator cover is reinstalled behind the front edge of the train trough 15 Use sealant g...

Page 49: ...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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