U-Line U-3090WCWCOL-00 User manual

®
U-LINE.COM
SERVICE MANUAL
MODULAR 3000 SERIES
230V, 3090 MODELS
U-3090WCWCOL-00
U-3090WCWCS-00
The American Built-In Undercounter Leader Since 1962
ALL MODULAR 3000 MODELS ARE INTENDED FOR BUILT-IN INSTALLATIONS ONLY

u-line.com
INTERNATIONAL PRODUCT LIABILITY POLICY (as of 11/4/2011)
Field service engineers are authorized to make an initial assessment. If in the engineer’s judgment the damage is the result of a product
defect, the product would be removed and returned to the importer in an unaltered condition. The importer would then be authorized to
permanently replace the end-user’s product at no cost to the end-user. The importer will notify U-Line and initiate a discussion regarding
disposition along with holding the product unaltered for evaluation.
If in the engineer’s judgment, the damage is the result of installation, the end-user would be so notified and the correction would be made
by the engineer or installer without requiring removal of the product. Any claim for damages should be directed to the original installer of
the product.
Any U-Line product involved in an alleged property damage claim must remain unaltered and unrepaired, for evaluation. No service
or repairs should be performed on any product suspected to be involved in property damage. If a product has been
altered or repaired in the field prior to the evaluation, any claim for damage may be declined. The product will be held
(unaltered) at the importer for disposition until notified by U-Line.
To complete the damage claim process for the end-user, the importer must obtain the following and forward to U-Line at the email
[email protected]:
1. Pictures of the product, installation and any alleged property damage.
2. Inquire when the problem first appeared, any prior problems with the product and provide a brief description of the alleged damages.
3. To expedite the claim process, two damage repair estimates will be needed.
4. Reference the Return Authorization (RA) number and end-user name when providing this information.
If a product is returned to the importer, the importer will work with U-Line to facilitate the evaluation. U-Line reserves the right to
evaluate the product and will provide written (via email) approval for any person performing this evaluation. No field service engineer is
authorized to perform this evaluation without approval from U-Line. When a Return Authorization Number is issued, and the
product has been boxed in a U-Line carton, importer should be contacted and then will make arrangements for shipping, or designate a
truck line to have the product shipped freight collect to the importer.
If the evaluation finds the product to be defective, the damage claim will be reviewed by the U-Line Customer Assurance Department.
If the evaluation finds the product not to be defective, all claims for damage will be declined.
When a product evaluation is needed, it is the end-user’s responsibility to assure that the product is released for evaluation. If the end-user
fails to do so, or has the product repaired in the field prior to the evaluation, any claim for damage will be declined.
Website: u-line.com
Mailing Address:
P.O. Box 245040
Milwaukee, WI 53224-9540
U.S.A.
Physical Address:
8900 N. 55th St.
Milwaukee, WI 53223
U.S.A.
Phone [phone]
Fax [phone]

Table of Contents
General Information
Safety Alert Definitions.........................................................................................................................................1
General Precautions..............................................................................................................................................1
Models Covered.....................................................................................................................................................3
System Default Values...........................................................................................................................................3
Temperature Ranges of the Various Preset U-Select™ Control.......................................................................... 3
Warranty Claims Procedure ...............................................................................................................................4
Proof of Purchase...................................................................................................................................................4
Serial Number.........................................................................................................................................................4
Replacement Parts .................................................................................................................................................4
Thermistor Info ......................................................................................................................................................5
Viewing Temperature............................................................................................................................................5
Thermistor Calibration.........................................................................................................................................5
Air Flow....................................................................................................................................................................6
Initial Startup ...........................................................................................................................................................6
U-Select®Control .................................................................................................................................................6
Adjusting Temperature Settings .........................................................................................................................6
Interior Lighting......................................................................................................................................................7
Error Notification ..................................................................................................................................................7
Customer Menu .....................................................................................................................................................7
Service Menu...........................................................................................................................................................9
USB Communication...........................................................................................................................................14
Quick Guide ..........................................................................................................................................................18
Convection Cooling ............................................................................................................................................20
3000 Series Maintenance
Leveling...................................................................................................................................................................21
Removing and Installing Grille...........................................................................................................................21
Adjusting Grille.....................................................................................................................................................21
3000 Series Doors
Door Alignment and Adjustment.....................................................................................................................22
Troubleshooting
Main Control.........................................................................................................................................................23
Component Testing.............................................................................................................................................24
Customer Call Guide..........................................................................................................................................25
Troubleshooting ..................................................................................................................................................26
Compressor Information ...................................................................................................................................27
Thermistors...........................................................................................................................................................28
Thermistor Failure...............................................................................................................................................28
Reed Switch...........................................................................................................................................................28
Refrigeration System Diagnosis Guide............................................................................................................28
Fault System Diagnosis Guide ..........................................................................................................................29

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General Information
NOTICE
• PLEASE READ all instructions before installing,
operating, or servicing the appliance.
• Proper installation procedures must be followed when
completing an installation or relocation of a unit. An
INSTALLATION GUIDE for the unit, providing complete
installation information, is available from U-Line
Corporation direct. Consult the installation guide before
any installation begins. U-Line contact information
appears on the rear cover of this guide.
• This unit requires connection to a dedicated 15 Amp
grounded (three-prong), polarized receptacle, installed by
a qualified electrician, compliant with applicable electrical
codes.
Safety Alert Definitions
Throughout this guide are safety items labeled with a Danger,
Warning or Caution based on the risk type:
DANGER
!
Danger means that failure to follow this safety statement will
result in severe personal injury or 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 result in minor or moderate personal injury, property
or equipment damage.
General Precautions
Use this appliance for its intended purpose only and follow these
general precautions with those listed throughout this guide:
DANGER
!
RISK OF CHILD ENTRAPMENT. Before you throw away your
old refrigerator or freezer, take off the doors and leave shelves
in place so children may not easily climb inside.
This appliance is not intended for use by persons (including children)
with reduced physical, sensory or mental capabilities, or lack of
experience or knowledge, unless they have been given supervision or
instruction concerning use of the appliance by a person responsible
for their safety. Children should be supervised to ensure that they do
not play with this appliance.
Do not store explosive substances such as aerosol cans with a
flammable propellant in this appliance.
WARNING
!
SHOCK HAZARD - Electrical Grounding Required.
• Never attempt to repair or perform maintenance on
the unit until the electricity has been disconnected.
• Never remove the round grounding prong from the
plug and never use a two-prong grounding adapter.
• Altering, cutting of electric cord, removal of electric
cord, removal of electric plug, or direct wiring can
cause serious injury, fire and/or loss of property and/or
life, and will void the warranty.
• Never use an extension cord to connect electric
current to the unit.
• Always keep your working area dry.
If the detachable type electric supply cord is damaged, it must be
replaced by an equivalent cord available from the manufacturer or its
service agent.
WARNING
!
Install provided Anti-Tip kit on all 3000 series models.
WARNING
!
Do not store explosive substances such as aerosol cans
with flammable propellant in this appliance.
WARNING
!
Requirement for an external switch in the fixed wiring is
specified.
General Information

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General Information
CAUTION
!
• Use care when moving and handling the unit. Use gloves
to prevent personal injury from sharp edges.
• If your model requires defrosting, DO NOT use an ice pick
or other sharp instrument to help speed up defrosting.
These instruments can puncture the 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
Do not lift unit by door handle.
• Never install or operate the unit behind closed doors. Be
sure front grille (plinth strip/base fascia) is free of
obstruction. Obstructing free airflow can cause the unit to
malfunction and will void the warranty.
• Failure to clean the condenser every six months can cause
the unit to malfunction. This could void the warranty.
• Allow unit temperature to stabilize for 24 hours before
use.
• Do not Block any internal Fans.
Use only genuine U-Line replacement parts. Imitation parts
can damage the unit, affect its operation or performance
and may void the warranty.
This appliance is intended to be used in household and similar
applications such as:
• Staff kitchen areas in shops, office and other working
environments.
• Farm houses and by clients in hotels, motels and other residential
type environments.
• Bed and breakfast type environments.
• Catering and similar non-retail applications.

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General Information
Models Covered
This guide covers the following models:
System Default Values
Temperature Ranges of the Various
Preset U-Select™ Control
Deli
• 1°C – 4°C, set point 2°C
• meats, fish, cheeses, dairy, butter, garlic, oils, nuts, condiments,
drinks
Fresh
• 1°C – 4°C, set point 3°C
• fruits, vegetables, berries, lettuce
Pantry
• 1°C – 21°C, set point 6°C
• dry goods, breads, baking items, spices, seasonings
Root Cellar
• 7°C – 13°C, set point 10°C
• root vegetables, potatoes, onions, lemon, lime, melon,
peppers, beans, cucumber, cut/open veggies
Drinks
• 1°C – 18°C, set point 3°C
Sparkling Wine
• 4°C – 10°C, set point 7°C
White Wine
• 7°C – 13°C, set point 10°C
Red Wine
• 13°C – 18°C, set point 13°C
Cabinet Configuration
Model Door Configuration Left Zone Right Zone
U-3090WCWCOL-00 Overlay Glass Doors Wine Racks Wine Racks
U-3090WCWCS-00 Stainless Steel Glass Doors Wine Racks Wine Racks
Available Modes Default Mode Offset
Model Left
Zone
Right
Zone
Left
Zone
Right
Zone
Left
Zone
Left
Evap
Right
Zone
Right
Evap
Ambient
U-3090WCWCOL-00 Red Wine,
Sparkling, White
Wine
Red Wine,
Sparkling, White
Wine
Red Wine White Wine 5 0 0 0 0
U-3090WCWCS-00 Red Wine,
Sparkling, White
Wine
Red Wine,
Sparkling, White
Wine
Red Wine White Wine 5 0 0 0 0
Differential Set Points Fan Delay
Model Left Right Left
Zone
Left
Evap
Right
Zone
Right
Evap
Fan 1
On
Fan 1
Off
Fan 2
On
Fan 2
Off
U-3090WCWCOL-00 2 2 12 7 10 7 1 2 1 2
U-3090WCWCS-00 2 2 12 7 10 7 1 2 1 2

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General Information
Warranty Claims Procedure
NOTICE
Warranty claims must be filed within 60 days after the
completion of the service call.
When submitting claims for warranty payment, please see
u-line.com/intl.
Proof of Purchase
If a copy of the Proof of Purchase/Proof of Install is not available, the
technician should record the following information on the Labor
Invoice:
Name of the selling dealer
Date of purchase/installation
Sales order or Invoice number
Description of verification document (i.e. Store Receipt, Closing
Papers, Sign-Off of Building Permit, Final Walk Through, etc.)
Confirm model and serial number
Serial Number
The serial number is divided into four segments. A typical serial
number is 1214997-08-0005.
Replacement Parts
Please refer to your importer for replacement parts or see
u-line.com/intl.
1214997-08-0005
Year Month Factory
Use Only
Factory
Use Only

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General Information
Thermistor Info
There are 5 thermistors used with the 3090 models.
• Left Zone Thermistor - Located on the right hand wall in the left
zone and is used to maintain temperature.
• Right Zone Thermistor - Located on the right hand wall in the
right zone and is used to maintain temperature.
• Left Evaporator Thermistor - Located on the back of the
evaporator plate in the left zone and is used during defrost.
• Right Evaporator Thermistor - Located on the back of the
evaporator plate in the right zone and is used during defrost.
• Ambient Thermistor - Located in the base of the unit on the
condenser and is used to monitor ambient air temperatures.
Viewing Temperature
Note: The display shows set point NOT the actual temperature.
The 3000 series is equipped with an advanced electronic display and
control. Thermistor readings can be obtained through both the
customer and service menu. The customer menu will display readings
while using offset calculations. It is important to note that the system
will use these adjusted readings when determining cooling and
defrost cycles. The service menu will display the actual thermistor
reading while disregarding offsets.
Customer Menu
To view the adjusted temperature of each available thermistor, follow
the steps below.
1. Initiate the customer menu by holding Select
for 5 seconds.
2. Use Down to scroll to “Actual Temperatures”.
3. Press select .
4. Use Up or Down to scroll through available information.
Service Menu
To view the actual temperature without having the offsets taken into
consideration, follow the steps below.
1. Initiate the service menu by holding both up and
Zone Toggle
.
2. Use Up or Down to scroll to “Actual Temperatures”.
3. Press select .
Use Up or Down to scroll through available information.
Thermistor Calibration
While thermistors generally do not require calibration, over time
contact corrosion and or element wear may make calibration
necessary.
Calibration
To calibrate a thermistor one must first prepare an ice water of
crushed ice and water in a suitable container. Allow the ice water
temperature to stabilize for at least 5 minutes before beginning.
NOTICE
Offsets are preset at the factory to efficiently maintain
product temperature. If modifying offset, existing values
must be taken into consideration.
NOTICE
Customer Care must be notified before any changes are
made to factory set offsets. Failure to notify Customer Care
will void the warranty.
1. Enter the service menu and record existing offset values for each
thermistor to be calibrated. See page 12. Some models have a
factory offset setting of 0.
2. Change offset of each thermistor to be calibrated to 0.
3. Enter “Actual Temps” through the
Customer Menu . See
“Viewing Temperature”.
4. Submerge the thermistor in the ice
water . The temperature read
out through the menu should be 0°C (32°F). If different, record
difference.
5. Enter “Offsets” through the service menu and set the value
recorded in step 4 to the thermistor to be calibrated.
6. Enter “Actual Temps” through the Customer Menu , the
temperature readout should now be 0°C (32°F). If the readout is
still incorrect reset the offset to 0 and perform steps 4 & 5 again.
7. Enter the “Offsets” menu and add the value recorded in step 1 to
the new offset setting. For example, if after the ice
water an offset
of 1 was needed and the existing offset value recorded in step 1
was -2 the new offset value would be -1. If the calculated value is
outside the maximum range capable in the offset menu the
thermistor must be replaced. The offset menu has a maximum
range of -5°C through 5°C.
Note: If a mistake is made in the calibration process a Factory Reset
will restore offsets to their factory pre-set values. See “Factory
Default” on page 13.

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General Information
Air Flow
NOTICE
The unit requires proper air flow to perform at its highest
efficiency. Do not block the front grille, internal fans or vents
at any time, or the unit will not perform as expected. Do not
install the unit behind a door.
Initial Startup
All U-Line controls are preset at the factory. Initial startup requires
no adjustments.
NOTICE
U-Line recommends allowing the unit to run overnight
before loading refrigerator with product.
To power the unit on simply press POWER and the unit will
immediately switch on.
To power the unit down, press and hold POWER for 5 seconds
and release. The display will show a countdown to switching the unit
off.
U-Select®Control
Digital Display
The 3000 Series units are controlled by a feature rich, advanced
OLED display control unit. The control panel allows adjustment to
temperature set point, access to Energy Saver Mode, internal
temperature readings, and many other features.
Note: A U-Line Control Simulator is available on-line. It is located on
the service website. To access this website you must have a user
name and password. Please go to http://www.u-line.com/control-
simulator/ to access the U-Line Control Simulator.
Adjusting Temperature Settings
Each zone has a Series of Mode Settings with a default value for each
setting. Each Mode Setting can be further customized by fine tuning
the temperature set point. See the table below for a description of
each Mode and temperature ranges. Mode selection will vary by
model.
The 3090 Models have two independently controlled zones. Each
zone may have its own Mode and set point.
1. In order to adjust set points you must first select a Zone to
adjust. To select, press Zone Toggle . The left side Zone
Setting will flash. Pressing Zone Toggle again will select the
right side and the right side Zone Setting will flash.
2. Pressing Select will cycle through each available mode.
Reference the Mode Settings Chart above for each Setting’s
default set point and range.
3. Once you have selected your desired mode, the default set
temperature will display. You may further fine tune the
temperature by pressing Up or Down .
Quick Chill
CAUTION
!
Quick chill is designed to quickly pull warm beverages and
foods down to optimum storage temperature. It is
important to only initiate quick chill modes when the zone
has been fully loaded with warm product. Failure to follow
this notice could result in food or beverages that are cooled
to a point below optimum or frozen.
The Quick Chill feature allows the user to rapidly cool their product
by cooling the cabinet to the lowest zone setting for the duration of 4
hours. After 4 hours, the temperature will return to the previous set
point before Quick Chill activation. Quick Chill is activated by
pressing the down button until “Quick Chill” is displayed.
Door Removed For Illustration Purposes
Internal Air Flow And Unit Ventilation Diagram
Mode Settings Chart
Setting Default (°C) Range (°C)
Red Wine 12° 12° - 18°
White Wine 10° 7° - 12°
Sparkling Wine 7° 3° - 10°
Drinks 3° 1° - 18°
Fresh 3° 1° - 4°
Vegetable 10° 7° - 12°
Pantry 5° 1° - 21°
Deli 2° 1° - 4°

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General Information
To Initiate quick chill
1. Use Zone Select
to select the desired zone, left or right.
2. Press Select to select the desired mode setting.
3. Press Down until the temperature set point reads “Quick”.
The quick chill feature will then begin for the period of time dictated
by the mode type. To cancel quick chill simply select a set point other
then “quick”.
Note: There may be a delay before quick chill is activated. If the
opposite zone is currently in a cooling cycle and quick chill is
selected, the cooling cycle on the opposite side will first be
completed before beginning quick chill.
Note: When quick chill is activated, the zone opposite the active quick
chill zone will not return to a cooling cycle until quick chill is
complete. If storing product in the opposite zone, it is important to
limit the number of times the door is opened in the zone not
currently under quick chill.
Interior Lighting
U-Line 3000 Series unit uses a state of the art theatre style LED
lighting system.
Note: Lighting system is designed to fade in and out when switching
states.
1. To begin, press U-Select Lighting to enter the lighting menu.
2. The unit initially defaults to control the lighting in both Zones
simultaneously. To select a single zone press Zone Toggle .
Notice the arrows on top of the display changing state. Pressing
Zone Toggle once will select the left side zone, pressing it
again will select the right side zone, pressing it a third time will
select both zones again.
3. Use Up or Down to cycle through each available
brightness setting; Low, Medium, or High.
4. Use U-Select Lighting to cycle through each available timer
setting. Selections include “On With Door”, “On 3 Hours”, “On
6 Hours”, or “On 24 Hours”.
5. To exit, press Select or simply wait for the menu to time out.
Error Notification
The 3000 model series continuously monitors a series of inputs and
parameters to ensure proper and efficient operation of the unit. Should
the system detect a fault, an error notification will be displayed on the
user interface. See below for a list of errors.
Customer Menu
The 3000 Series of U-Line undercounter refrigeration appliances
contain a feature rich customer menu. The Customer Menu allows
access to a series of advanced features including Energy Saver Mode,
Sabbath mode, Actual Temperature readings as well as a method to
restore factory defaults.
1. To access the Customer Menu hold down Select for 5
seconds.
2. Use Up or Down to scroll through available selections.
3. Use Select to enter selected sub-menu.
4. To exit Customer menu, Use Down to scroll to the bottom
of the display and use Select to Select “Exit.”
Up Zone Indicator Zone Indicator Zone Toggle
Select
Down U-Select Lighting
Power
3036 Model Display Shown
U-SELECT LIGHTING
ON WITH DOOR
LIGHTING
HIGH
LEVEL
ID Description Solution
No Comm Unit lost
communication to the
display.
Inspect Customer UI and
Data Cable (if defective
replace entire door)
(L) (R) Zone T
Open
Left or right zone
thermistor circuit
open.
Check connection.
Replace if necessary.
Amb Thrm Open Ambient thermistor
circuit open.
Check connection.
Replace if necessary.
(L) (R) Zone T
Short
Left or right zone
thermistor circuit
shorted.
Check connection.
Replace if necessary.
Amb Thrm Short Ambient thermistor
circuit shorted.
Check connection.
Replace if necessary.
(L) (R) Temp Hi
6H+
Left or right Zone
temperature +5° over
set point for over 6
hours.
Verify door is closed and
sealing. Contact customer
care if persistent.
(L) (R) Temp Hi
12H+
Zone temperature +5°
over set point for over
12 hours.
Check compressor,
evaporator fan and related
relays and DC outputs.
(L) (R) Temp Lo
6H+
Zone temperature
-5° under set point for
over 6 hours.
Check compressor,
evaporator fan and related
relays and DC outputs.
(L) (R) Temp Lo
12H+
Zone temperature
-5° under set point for
over 12 hours.
Check compressor,
evaporator fan and related
relays and DC outputs.
(L) (R) Door
Open 5M
Door switch open for
more then 5 minutes.
Verify door is closed and
sealing. Check reed switch
and related connections.
Up
Select
Down
WELCOME TO THE
CUSTOMER MENU. USE
UP/DOWN ARROWS TO
SCROLL SETTINGS.

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General Information
Actual Temps
The “Actual Temps” option displays the offset corrected temperature
of each zone, evaporator, as well as ambient temperature.
1. To view actual temperatures first select “Actual Temps” from the
customer menu.
2. Use Up or Down to scroll through available information.
3. To exit, Select Return to Menu.
Energy Saver
Energy Saver mode reduces overall energy consumption by altering
user set point, differential, lighting and tone settings. When in Energy
Saver mode a small leaf icon will be displayed on the main screen.
1. To enter Energy Saver first select Energy Saver from the
Customer Menu.
2. Use Down to select “Off” in the menu.
3. Press Select .
4. Use Up or Down to change the selection from Off to On.
5. Press Select to confirm your selection.
6. To exit Energy Saver mode simply return to the Customer Menu,
Select Energy Saver mode and change “On” to “Off”.
Sabbath Mode
The U-line 3000 Series of models offer a Sabbath mode for users
who celebrate certain Sabbaths. Sabbath mode disables system
responses to user initiated activities and all external functions;
including lighting, display and audible alarms. The unit will still
maintain internal temperatures and set points.
1. To enter Sabbath Mode, select Sabbath Mode from the Customer
Menu.
2. Use Down to select “Off”.
3. Press Select , “Off” will begin to flash.
4. Use Up or Down to change “Off” to “On”.
5. Press Select to Confirm your selection.
The Display will fade out as the unit enters Sabbath Mode. Sabbath
remains active until Power is pushed.
Languages
The U-Line 3000 Series of models supports a number of Display
Languages including English, Spanish, French and German.
To Change Display Language select Languages from the Customer
Menu.
1. Use Down to select “English”.
2. Press Select , “English” will begin to flash.
3. Use Up or Down to cycle through the available Languages.
4. Press Select to confirm your choice.
Up
Select
Down
3090 Model Display Shown
RETURN TO MENU
ACTUAL TEMPS
LEFT ZONE = 3°C
RIGHT ZONE = 3°C
WHITE WINE WHITE WINE
99
CC
100
OO OO
Up
Select
Down
Power
3090 Model Display Shown
Energy Saver Mode
Indicator
Up
Select
Down
RETURN TO MENU
SABBATH MODE
OFF
Up
Select
Down
RETURN TO MENU
LANGUAGES
ENGLISH

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General Information
Sound Level
Audible alarms and alert tones support four different Sound Level
settings, High, Medium, Low, and Off.
To select a new sound level, enter the Sound Level menu from the
Customer Menu.
1. Use
Down to select the current sound level.
2. Press Select , the current setting will begin to flash.
3. Use Up or Down to select a different level.
4. Use Select to confirm your choice.
Celsius / Fahrenheit
Temperature and set point information can be displayed in either
Fahrenheit or Celsius.
To change from Celsius to Fahrenheit enter the Fahrenheit / Celsius
menu from within the Customer Menu.
1. Use Down to select “Degrees”.
2. Press Select . The selection will begin to flash.
3. Use Up or Down to select between °F (Fahrenheit) or °C
(Celsius).
4. Press Select to confirm your choice.
Factory Default
Factory Default will restore all settings to their factory default.
To access Factory Default
1. Use Down to select “Factory Default”.
2. Press Select .
To restore settings to their factory default
3. Use Down to select “Restore?” and press Select
4. “Restore?” will change to “Restoring...” while settings are
restored. When restoration is complete, “Restoring...” will return
to “Restore?”.
To exit Factory Default use Up to select “Return to Menu” and
press Select to confirm.
Help
To access the Help menu select Help from the Customer Menu. Use
Up or Down to scroll through available information. The Help
screen displays the following.
•Model.
• U-Line contact information.
•Softwareversion.
•SerialNumber.
To exit the Help menu use Up to select “Return to Menu” and
press Select to confirm.
Service Menu
In addition to a feature rich customer menu, the 3000 series also
offers a service menu with the ability to fine tune and monitor unit
operation.
To initiate the Service menu hold both Up and Zone Toggle
for 5 seconds.
Actual Temps
The Actual Temp option in the service menu will display raw
thermistor readings without calculating offsets.
1. Use Down to select “Actual Temps”.
2. Press Select .
3. Use Up and Down to scroll through available thermistor
readings.
Up
Select
Down
RETURN TO MENU
TONE LEVEL
HIGH
Up
Select
Down
RETURN TO MENU
FARENHEIT/CELSIUS
DEGREES = °C
Up
Select
Down
RETURN TO MENU
FACTORY DEFAULT
RESTORE?
Up
Select
Down
RETURN TO MENU
Help
Model 3045WC
1-800-779-2547
Up
Select
Down
3090 Model Display Shown
RETURN TO MENU
ACTUAL TEMPS
LEFT ZONE = 3°C
RIGHT ZONE = 3°C

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General Information
To exit the Actual Temps menu use Up to select “Return to
Menu” and press Select to confirm.
All Errors
The All Errors option keeps record of any system errors. When an
error occurs it is recorded to all errors. The number next to the
error indicates the number of recorded instances. Errors in the log
may not be currently active. The error log memory is non volatile and
is persistent should power be lost and restored to the unit. See
below for a list of logged errors and their respective descriptions.
To access All Errors follow the steps below.
1. Use Down to select “All Errors”.
2. Press Select .
3. Use Up and Down to scroll through available information.
To clear the error log use Down to select “Clear Errors” and
press Select to confirm.
To exit the Actual Temps menu use Up to select “Return to
Menu” and press Select to confirm.
Relay Status
Relay status displays the current state of each relay. While all available
relays are displayed, only a portion are used.
Note: The Cond (Condenser Fan) will switch state with the
compressor relay, however the condenser fan is actually powered
through a DC output. Condenser fan status can be viewed through
the “Output” service menu option.
To access Relay Status
1. Use Down to select “Relay Status”.
2. Press Select .
3. Use Up and Down to scroll through available information.
To exit the Relay Status simply press Select to exit.
ID Description Solution
No Comm Unit lost communication to the
display.
Check display cable. Replace
if necessary.
L Zone T
Open
Left Zone thermistor circuit
open.
Check connection. Replace
if necessary.
R Zone T
Open
Right Zone thermistor circuit
open.
Check connection. Replace
if necessary.
L Evap T
Open
Left evaporator thermistor circuit
open.
Check connection. Replace
if necessary.
R Evap T
Open
Right evaporator thermistor
circuit open.
Check connection. Replace
if necessary.
Amb Thrm
Open
Ambient thermistor circuit open. Check connection. Replace
if necessary.
L Zone T
Short
Left Zone thermistor circuit
shorted.
Check connection. Replace
if necessary.
R Zone T
Short
Right Zone thermistor circuit
shorted.
Check display cable. Replace
if necessary.
L Evap T
Short
Left evaporator thermistor circuit
short.
Check connection. Replace
if necessary.
R Evap T
Short
Right evaporator thermistor
circuit short.
Check connection. Replace
if necessary.
Amb Thrm
Short
Ambient thermistor circuit
shorted.
Check connection. Replace
if necessary.
L Temp Hi
6H+
Left Zone temperature +5° over
set point for over 6 hours.
Check compressor,
evaporator fan and related
relays and DC outputs.
R Temp Hi
6H+
Right Zone temperature +5° over
set point for over 6 hours.
Check compressor,
evaporator fan and related
relays and DC outputs.
L Temp Hi
12H+
Left Zone temperature +5° over
set point for over 12 hours.
Check compressor,
evaporator fan and related
relays and DC outputs.
R Temp Hi
12H+
Right Zone temperature +5° over
set point for over 12 hours.
Check compressor,
evaporator fan and related
relays and DC outputs.
L Temp Lo
6H+
Left Zone temperature -5° under
set point for over 6 hours.
Check compressor,
evaporator fan and related
relays and DC outputs.
R Temp Lo
6H+
Right Zone temperature -5°
under set point for over 6 hours.
Check compressor,
evaporator fan and related
relays and DC outputs.
Up
Error ID
Number
Of Occurrences Select
Down
RETURN TO MENU
ALL ERRORS
NO COMM 0
ZONE T OPEN 0
ID Description Solution
L Temp Lo
12H+
Left Zone temperature -5°
under set point for over 12
hours.
Check compressor, evaporator
fan and related relays and DC
outputs.
R Temp Lo
12H+
Right Zone temperature -5°
under set point for over 12
hours.
Check compressor, evaporator
fan and related relays and DC
outputs.
L Door
Open 5M
Left door switch open for
more then 5 minutes.
Check compressor, evaporator
fan and related relays and DC
outputs.
R Door
Open 5M
Right door switch open for
more then 5 minutes.
Check compressor, evaporator
fan and related relays and DC
outputs.
ID Description Status
Mull Mullion Heater Not Used
Cond Condenser Fan Not Used
Def Defrost Valve Not Used
LVLV Le ft Val ve Us ed
RVLV Right Valve Used
Pan Pan Heater Not Used
Comp Compressor Used
Up
Select
Down
RETURN TO MENU
RELAY STATUS
MULL COND DEF LVLV
OFF OFF OFF OFF

u-line.com 11
General Information
Relay Toggle
Relay toggle is used to manually switch the state of each relay to test
for proper operation. In addition to the AC relays, DC switches may
also be toggled. Relay toggle can also be used to force the unit into a
particular state. For example, to force a 3090 into a cooling cycle
activate LVLV, Comp, F1, and F3.
To a c c e s s R e l ay To g g l e
1. Use Down to select “Relay Toggle”.
2. Press Select .
3. Use Up and Down to scroll through each relay and DC
output.
4. Press Select to toggle.
To exit the Relay Toggle menu use Up to select “Return to Menu”
and press Select to confirm.
Input Status
Input status displays the current state of each available input as well as
the current USB connection state.
Note: USB status shows current connection state. In order to make a
successful connection, USB connection type must be properly set in
“USB Port” under the service menu.
To access Input Status
1. Use Down to select “Input Status”.
2. Press Select .
3. Use Up and Down to scroll through available information.
To exit the Input Status menu use Up to select “Return to Menu”
and press Select to confirm.
Outputs
Outputs is used to monitor the state of DC outputs.
To access Outputs
1. Use Down to select “Outputs”.
2. Press Select .
3. Use Up and Down to scroll through available information.
ID Description Type
Mull Mullion Heater (Not Used) AC
Cond Fan (Not Used) AC
Def Defrost Valve (Not Used) AC
LVLV Left Valve AC
RVLV Right Valve AC
Pan Pan Heater (Not Used) AC
Comp Compressor AC
F1 Left Evaporator Fan DC
F2 Right Evaporator Fan DC
F3 Condenser Fan DC
L1 Left Zone Lighting DC
L2 Right Zone Lighting DC
Up
Select
Down
RETURN TO MENU
RELAY TOGGLE
MULL OFF
COND OFF
ID Description States
Left Door Left Door Switch Open - Closed
Right Door Right Door Switch Open - Closed
Test Input Factory Test Input Open
USB USB Connection State Flash - Com Port
ID Description States
L Evap Fan Left Evaporator Fan 0 - 100%
R Evap Fan Right Evaporator Fan 0 - 100%
Condenser Fan Condenser Fan 0 - 100%
L Light Left Zone Lighting Off - Low - Med - High
R Light Right Zone Lighting Off - Low - Med - High
Up
Select
Down
RETURN TO MENU
INPUT STATUS
DOOR OPEN
IN2 OPEN
Up
Select
Down
RETURN TO MENU
OUTPUTS
EVAP FAN=0%
CONDENSER FAN=0%

12 u-line.com
General Information
To exit the Input Status menu use Up to select “Return to Menu”
and press Select to confirm.
Offsets
NOTICE
Customer care MUST be notified and approve of any
changes to the differential before they are made. Failure to
notify customer care will void the warranty.
Offsets are used to adjust or correct thermistor readings. Offset
values are added to the current thermistor reading and are then used
by the control board to determine cooling and defrost cycle times.
Offsets have a range of +/- 5°C. Corrected values may be viewed
through the customer “All Temps” menu or TTY output.
To access Offsets
1. Use Down to select “Offsets”.
2. Press Select .
3. Use Up and Down to scroll through available thermistors.
To change offset
4. Press Select , the selected thermistor will begin to flash.
5. Use Up or Down to modify offset value.
6. Press Select to confirm setting.
To exit the Offset menu use Up to select “Return to Menu” and
press Select to confirm.
Self Test
Self test is used to initiate a self diagnostic report. Any system faults
will be displayed under Self test. If no errors are present “no errors”
will be displayed and the main control board is functioning properly.
The main control board is extremely robust and should rarely require
service. Most issues are external to the control. Reference
troubleshooting for more information.
To access Self Test
1. Use Down to select “Self Test”.
2. Press Select .
3. Use Up and Down to scroll through available information.
To exit the Self Test use Up to select “Return to Menu” and press
Select to confirm.
Differentials
Differentials are used to determine the maximum variation from set
point and have a range of 0 through 5. The table below shows the
effect of differentials on cooling cycles with a set point of 10°.
Note: Air temperature does not reflect product temperatures.
The graph below shows a unit’s cooling cycle over time with various
differentials.
Up
Select
Down
RETURN TO MENU
OFFSETS
ZONE = 1°C
EVAP = 1°C
Up
Select
Down
RETURN TO MENU
SELF TEST
NO ERRORS
try “RELAY TOGGLE”
Differential Cycle Start Cycle End
0 11° 9°
1 12° 8°
2 13° 7°
3 14° 6°
4 15° 5°
5 16° 4°
Up
Select
Down
RETURN TO MENU
DIFFERENTIALS
ZONE = 1°C
45° Set Point
1° Differential
2° Differential
3° Differential
Temperature (°C)

u-line.com 13
General Information
Set Points
The Set points menu contains options to modify both the Zone and
Evap set points. Changes to the zone set point will be reflected on
the main screen. Changes to the evap set point alter the temperature
the evaporator needs to meet during a defrost cycle.
To access Set Points
1. Use Down to select “Set Points”.
2. Press Select .
3. Use Up and Down to scroll through available set points.
To change set point
4. Press Select , the selected set point will begin to flash.
5. Use Up or Down to modify the value.
6. Press Select to confirm setting.
To exit the Set Points menu use Up to select “Return to Menu”
and press Select to confirm.
Factory Default
Factory Default will restore all settings to their factory default.
To access Factory Default
1. Use Down to select “Factory Default”.
2. Press Select .
To restore settings to their factory default
3. Use Down to select “Restore?” and press Select .
4. “Restore?” will change to “Restoring...” while settings are
restored. When restoration is complete, “Restoring...” will return
to “Restore?”.
To exit Factory Default use Up to select “Return to Menu” and
press Select to confirm.
Re-Select Model
NOTICE
Before altering model selection U-Line customer service
must be notified. Failure to notify customer service will
result in voiding of the manufacturer warranty. Call U-Line
Customer Service for assistance.
Re-Select Model allows the unit’s model information to be modified.
Changing the unit’s model completely reprograms available zones,
relay assignments, DC output assignments, etc.
To access Re-Select Model
1. Use Down to select “Re-Select Model”.
2. Press Select .
To alter model setting
3. Use Down to select “Model=” and press Select . “Model”
will begin to flash.
4. Press Up or Down to scroll through each available model.
5. Press Select to confirm.
To exit Re-Select Model use Up to select “Return to Menu” and
press Select to confirm.
Up
Select
Down
RETURN TO MENU
SET POINTS
ZONE = 3°C
EVAP = 5°C
Up
Select
Down
RETURN TO MENU
FACTORY DEFAULT
RESTORE?
Up
Select
Down
RETURN TO MENU
RE-SELECT MODEL #
3018R

14 u-line.com
General Information
Fan Delay
The Fan Delay menu option allows the modification of fan run times
during and after a cooling cycle. In order to allow time for the
evaporator to properly cool, the evaporator fan is delayed from
starting with the cooling cycle for a given amount of time. In order to
remove as much warmth as possible from the cabinet, the evaporator
fan will continue to run at the end of the cooling cycle for a given
amount of time.
Fan Delay On=
“Fan Delay On” is the amount of time in minutes the fan will be
delayed from starting from the beginning of a cooling cycle.
Fan Delay Off=
“Fan Delay Off” is the amount of time in minutes the fan will
continue to run at the end of a cooling cycle.
To access Fan Delay
1. Use Down to select “Fan Delay”.
2. Press Select .
To alter fan settings
3. Use Down to select either “Fan Delay On” or “Fan Delay
Off” and press Select . The chosen option will begin to flash.
4. Press Up or Down to change settings.
5. Press Select to confirm.
To exit Fan Delay use Up to select “Return to Menu” and press
Select to confirm.
USB Communication
The 3000 series uses an advanced USB logging feature for system
logging and diagnostics. The controller outputs 41 separate data
points per second to either a USB flash disk or transmits over USB
via TTY to a client PC. To prepare the unit for logging, first verify the
USB port is set to the proper configuration. See “USB Port” for
information on configuring the USB port.
Flash Mode:
Suitable for logging directly to a USB flash disk.
PC Link Mode:
Suitable for communicating directly with another PC via USB.
USB Communication (Flash)
The main control can host a wide range of flash disks up to a max
capacity of 8GB. After verifying the USB port is set to “Flash”, simply
insert a flash disk in to the USB port located above the grille. The
flash disk activity light (located on the flash disk) will begin flashing
immediately as data is recorded to the drive. Data is recorded in one
second increments and is only limited by the capacity of the flash disk.
The system will create a file named “uline.csv” on the flash disk. In
the event the file already exists, new data will automatically be
appended to the end of the existing file. The file is output in a comma
delineated text format and may be viewed in a wide variety of simple
text readers or spreadsheet programs.
For information on identifying each data point, see the
“Communication Data” table on page 16.
USB Communication (PC Link)
Data can be transmitted directly to a client PC via a serial
connection. Verify the USB port is set to “PC Link”. Use a Type A to
Type A male to male USB cable to connect the system to a
Windows®compatible PC. It is necessary to install communication
drivers to the client PC. Drivers may be downloaded at
u-lineservice.com. Establish a connection using a Telnet / TTY
terminal application. U-Line recommends PuTTY. PuTTY is available
for download at u-lineservice.com. Once the connection is
established, the controller will output a series of 41 data points in 1
second increments. For information on identifying each data point,
see the “Communication Data” table on page 16.
USB Port
The USB Port menu option allows the selection of a communication
mode. The 3000 Series can communicate either via TTY to a PC or
log diagnostic information directly to a USB flash disk.
NOTE: Unit ships in PC link mode.
To alter communication settings
1. Use Down to select the current setting and press Select .
2. Press Up or Down to change settings.
3. Press Select to confirm.
Up
Select
Down
RETURN TO MENU
FAN DELAY
FAN DELAY ON = 1
FAN DELAY OFF = 2
ID Communication
PC Link PC TTY
Flash USB Flash Drive
Up
Select
Down
RETURN TO MENU
USB PORT
PC Link
USB
Grille

u-line.com 15
General Information
To exit “USB Port” use Up to select “Return to Menu” and press
Select to confirm.
To access USB Port
4. Use Down to select “USB Port”.
5. Press Select .
Showroom Mode
Showroom displays a number of features and allows the unit to be
powered on without running the cooling system.
To toggle showroom mode
1. Use Down to select “Showroom Mode”.
2. Press Select .
3. Use Down to select “Off” and press Select . “Off” will
begin to flash.
4. Press Up or Down to toggle between off and on.
5. Press Select to confirm.
If set to “on” showroom mode will begin immediately. To exit
showroom mode press and release Power .
To exit the showroom mode menu use Up to select “Return to
Menu” and press Select to confirm.
Up
Select
Down
RETURN TO MENU
SHOWROOM MODE
OFF

16 u-line.com
General Information
Communication Data ID Table (Sample Temperatures shown in F)
Field 12345678910
ID Time
Live
Left Zone
Te m p
Right Zone
Te m p
Left Evap
Te m p
Right Evap
Te m p
Ambient
Te m p
Proc
Te m p
Left Zone
ID
Left Set
Point
Left
Differential
Sample
Data 1525 36 40 5 25 85 111 Beverage 34 1
Field 11 12 13 14 15 16 17 18 19 20
ID Left Zone
Offset
Left Evap
Offset
Right Zone
ID
Right Set
Point
Right Zone
Differential
Right Zone
Offset
Right Evap
Offset
L Door
Indicator
R Door
Indicator
Relay 1
Indicator
Sample
Data 0 0 Beverage 34 1 0 0 --- --- ---
Field 21 22 23 24 25 26 27 28 29 30
ID Relay 2
Indicator
Relay 3
Indicator
Relay 4
Indicator
Relay 5
Indicator
Relay 6
Indicator
Relay 7
Indicator
Fan 1
Indicator
Fan 2
Indicator
Fan 3
Indicator
Left Lamp
Power
Sample
Data 2 --- 4 --- --- 7 1 --- 3 0
Field 31 32 33 34 35 36 37 38 39 40
ID Right Lamp
Power
Energy
Saver
Sabbath
Indicator
Power
Indicator
Comp
Timer
Comp
Cum Time
Defrost
Timer
Fan 1
Timer
Fan 2
Timer
Left Limp
Timer
Sample
Data 0 --- --- --- 32 1523 0 0 0 0
Field 41
ID Right Limp
Timer
Sample
Data 0

u-line.com 17
General Information
Field Descriptions:
Note: Relay 2 will cycle with relay 7, this is considered normal.
Field Value Field Value
1 Time in seconds since unit plugged in. 22 Relay 3 (unassigned). “3” = active, “---” = inactive.
2 Temperature of Left Zone in °F/°C. 23 Left Valve Relay “4” = active, “---” = inactive.
3 Temperature of Right Zone in °F/°C. 24 Right Valve Relay 5. “5” = active, “---” = inactive.
4 Left evaporator temperature in °F/°C. 25 Relay 6 (unassigned). “6” = active, “---” = inactive.
5 Right evaporator temperature in °F/°C. 26 Compressor relay. “7” = active, “---” = inactive.
6 Ambient temperature in base of unit °F/°C. 27 Left evaporator fan. “1” = active, “---” = inactive.
7 Board processor temperature. 28 Right evaporator fan. “2” = active, “---” = inactive.
8 Left Zone identification tag. 29 Condensor fan. “3” = active, “---” = inactive.
9 Left Zone set point in °F/°C. 30 Left LED intensity, provided in %.
10 Left Zone Differential value in °F/°C. 31 Right LED intensity, provided in %.
11 Left Zone offset value in °F/°C. 32 Energy Saver mode indicator. “E” = active.
12 Left evaporator offset value in °F/C. 33 Sabbath mode indicator. “S” = active.
13 Right Zone identification tag. 34 Soft power indicator. “P” = unit in “On” mode.
14 Right Zone set point in °F/°C. 35 Compressor state change timer, in seconds.
15 Right Zone Differential value in °F/°C. 36 Compressor cumulative run time, in seconds.
16 Right Zone offset value in °F/°C. 37 Max remaining defrost time, in seconds.
17 Right evaporator offset value in °F/C. 38 Left Evaporator fan state change timer, in seconds.
18 Left door indicator. “L” = Open, “---” = closed. 39 Right Evaporator fan state change timer, in sec.
19 Right door indicator. “R” = Open, “---” = closed. 40 L Cumulative time spent in limp mode, in seconds.
20 Relay 1 (unassigned). “1” = “active”, “---” = inactive. 41 R Cumulative time spent in limp mode, in seconds.
21 Relay 2 (unassigned). “2” = “active”, “---” = inactive.