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USER GUIDE & SERVICE MANUAL
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
RIGHT PRODUCT. RIGHT PLACE. RIGHT TEMPERATURE. SINCE 1962.
ADA Series • 29R • 21" Solid Door Refrigerator
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USER GUIDE
u-line.com
Contents
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Intro
Safety
Safety and Warning
Disposal and Recycling
Installation
Environmental Requirements
Electrical
Cutout Dimensions
Product Dimensions
Side by Side Installation
General Installation
Integrated Panel Dimensions
Integrated Panel Installation
Grille / Plinth Installation
Troubleshooting
Warranty
Service Extended
Wire Diagram
Product Liability
Warranty Claims
Parts
Ordering Replacement Parts
System Diagnosis Guide
Compressor Specifications
Troubleshooting Extended
Defrost
Door Swing
Door Adjust
Operating Instructions
First Use
Airflow and Product Loading
Interior Shelves
Door Shelves
Maintenance
Cleaning
Cleaning Condenser
Extended Non-Use
Service
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USER GUIDE
u-line.com
WELCOME TO U-LINE
Congratulations on your U-Line purchase. Your product comes from a company with over five decades of premium modular
ice making, refrigeration, and wine preservation experience. U-Line continues to be the American leader, delivering versatility
and flexibility for multiple applications including residential, light commercial, outdoor and marine use. U-Line’s complete
product collection includes Wine Captain
Door Refrigerators, Drawer Models, Freezers, Combo® Models, and more.
U-Line has captivated those with an appreciation for the finer things with exceptional functionality, style, inspired innovations
and attention to even the smallest details. We are known and respected for our unwavering dedication to product design,
quality and selection. U-Line is headquartered in Milwaukee, Wisconsin and has shipped product to five continents for over
two decades and is proud to have the opportunity to ship to you.
PRODUCT INFORMATION
Looking for additional information on your product? User Guides, Spec Sheets, CAD Drawings, Compliance Documentation,
and Product Warranty information are all available for reference and download at u-line.com.
®
Models, Beverage Centers, Clear Ice Machines, Crescent Ice Makers, Glass & Solid
PROPERTY DAMAGE / INJURY CONCERNS
In the unlikely event property damage or personal injury is suspected related to a U-Line product, please take the following
steps:
1. U-Line Customer Care must be contacted immediately at +1.800.779.2547.
2. Service or repairs performed on the unit without prior written approval from U-Line is not permitted. If the unit has been
altered or repaired in the field without prior written approval from U-Line, claims will not be eligible.
GENERAL INQUIRIES
U-Line Corporation
8900 N. 55th Street
Milwaukee, Wisconsin 53223 USA
Monday - Friday 8:00 am to 4:30 pm CST
T: +1.414.354.0300
F: +1.414.354.7905
Email: sales@u-line.com
u-line.com
SERVICE & PARTS ASSISTANCE
Monday - Friday 8:00 am to 4:30 pm CST
T: +1.800.779.2547
F: +1.414.354.5696
Service Email: onlineservice@u-line.com
Parts Email: onlineparts@u-line.com
CONNECT WITH US
Designed, engineered and assembled in WI, USA
Introduction 1
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USER GUIDE
NOTICE
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SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Safety and Warning
Please read all instructions before installing,
operating, or servicing the appliance.
Use this appliance for its intended purpose only and follow
these general precautions with those listed throughout this
guide:
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.
DANGER
!
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 not service without consulting the
“R600a specifications” section included in the
User Guide. Do not damage the refrigerant
circuit.
WARNING
!
Service must be done by factory authorized
service personnel. Any parts shall be replaced
with like components. Failure to comply could
increase the risk of possible ignition due to
incorrect parts or improper service.
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.
Safety and Warning 1
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USER GUIDE
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SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Disposal and Recycling
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.
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 refrigeration
appliances, and follow these steps completely:
1. Remove all consumable contents from the unit.
2. Unplug the electrical cord from its socket.
3. Remove the door(s)/drawer(s).
Disposal and Recycling 1
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USER GUIDE
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SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Environmental Requirements
This model is intended for indoor/interior applications only
and is not to be used in installations that are open/
exposed to natural elements.
This unit is designed to operate between 50°F (10°C) 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 sunlight
and away from heat generating equipment.
In climates where high humidity and dew points are
present, condensation may appear on outside surfaces.
This is considered normal. The condensation will
evaporate when the humidity drops.
CAUTION
!
Damages caused by ambient temperatures of
40°F (4°C) or below are not covered by the
warranty.
Environmental Requirements 1
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USER GUIDE
NOTICE
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Electrical
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 or removing power cord,
removing power plug, or direct wiring can cause
serious injury, fire, loss of property and/or life,
and will void the warranty.
Never use an extension cord to connect power to
the unit.
Always keep your working area dry.
Electrical installation must observe all state and
local codes. This unit requires connection to a
grounded (three-prong), polarized receptacle
that has been placed by a qualified electrician.
The unit requires a grounded and polarized 115 VAC,
60 Hz, 15A power supply (normal household current). An
individual, properly grounded branch circuit or circuit
breaker is recommended. A GFCI (ground fault circuit
interrupter) is usually not required for fixed location
appliances and is not recommended for your unit because
it could be prone to nuisance tripping. However, be sure
to consult your local codes.
See CUTOUT DIMENSIONS for recommended receptacle
location.
Electrical 1
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USER GUIDE
21-1/16"
(535 mm)
Typical
Counter
Height
34-1/4"
(870 mm)
to
35-1/8"
(892 mm)
Cutout
Height
28-5/8"
(727 mm)
to
28-7/8"
(733 mm)
Filler Panel (Not Provided by U-Line) –
May Be Added Above or Below Unit
to Enclose for a Built-In Look
1-1/2" (38 mm)
7"
(178 mm)
24"
(610 mm)
Preferred location
for electrical outlet
is in adjacent
cabinet.
5/8"
(16 mm)
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Cutout Dimensions
PREPARE SITE
Your U-Line product has been designed for either free-
standing or built-in installation. When built-in, your unit
does not require additional air space for top, sides, or
rear. However, the front grille must NOT be obstructed,
and clearance is required for an electrical connection in
the rear.
CAUTION
!
Unit can NOT be installed behind a closed cabinet
door.
CUTOUT DIMENSIONS
Cutout Dimensions 1
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USER GUIDE
28 1/2"
20 7/8" (530 mm)
4 9/16" (116 mm)
23" (584 mm)
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Product Dimensions
(724 mm)
Product Dimensions 1
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USER GUIDE
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SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Side-by-Side Installation
Two units may be installed side-by-side.
Cutout width for a side-by-side installation is the cutout
dimension of a single unit times two.
No trim kit is required. However, 1/4" (6 mm) of space
needs to be maintained between the units to ensure
unobstructed door swing.
Units must operate from separate, properly grounded
electrical receptacles placed according to each unit’s
electrical specifications requirements.
Side-by-Side Installation with Bracket
1. Slide both units out so screws on top of units are easily
accessible.
3. Place bracket 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 units into position. Be careful not to
entangle the electrical cord or water line, if applicable.
5. Re-check the leveling, from front to back and side to
side. Make any necessary adjustments. The unit’s top
surface should be approximately 1/8" (3 mm) below
the countertop.
2. Remove screws as shown below.
Side-by-Side Installation 1
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USER GUIDE
NOTICE
1
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SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
General Installation
LEVELING INFORMATION
Because these units do not have leveling legs, it
is extremely important that they sit on a level
surface.
Use a level to confirm
the unit is level. Level
should be placed along
top edge and side edge
as shown.
INSTALLATION
1. Plug in the power/electrical cord.
2. Gently push the unit into position. Be careful not to
entangle the cord.
3. Re-check the leveling, from front to back and side to
side. Make any necessary adjustments.
4. Remove the interior packing material and wipe out the
inside of the unit with a clean, water-dampened cloth.
General Installation 1
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USER GUIDE
NOTICE
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SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Integrated Panel Dimensions
INSERT CUSTOM 1/4'' THICK DOOR PANEL
Insert Panel Preparation
A custom door panel may be inserted into the door frame.
Custom door panels can be flat or raised, as long as the
maximum panel thickness where inserted into the door
reveal (channel) is no more than 1/4" thick. For raised
panels, the depth of the reveal is 1/4" on all four sides.
Raised panels will reduce the door’s 90° swing/
zero clearance if the unit is installed next to a
wall or similar type of structure.
Panel Dimensions
The door panel must not weigh more than 5 lbs.
Width Height
19-13/16" (503 mm) 21-13/32" (544 mm)
Integrated Panel Dimensions 1
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USER GUIDE
NOTICE
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SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Integrated Panel Installation
This model accepts a 1/4" insert panel.
INSERT PANEL INSTALLATION
Install the insert as follows:
CAUTION
!
Use care when handling the insert. Insert edges
may be sharp.
1. Remove top hinge screw pin
with Phillips head screwdriver.
Remove door by tilting forward
and lifting off bottom hinge pin.
5. Slide custom door panel insert into 1/4" (6 mm)
channel in door front.
Use care not to damage magnet, located on door
bottom when installing door insert. Do not set
door on bottom edge when pushing insert into
place.
6. Holding door gasket out of the way, replace handle on
door, making sure it is seated properly on insert and
that screw holes line up.
7. Install two small screws removed in Step 3.
8. Starting at the corners and working inward, push door
gasket into place on door.
2. Pull door gasket out of groove
(top edge of door only). Start in
the middle and pull outward,
moving toward the edge. This
may take some force.
3. Remove two outside screws
holding door handle. Slightly
separate door handle from door.
4. Pull handle up and off.
9. Place door on bottom hinge pin and install upper hinge
screw.
Integrated Panel Installation 1
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USER GUIDE
3
1
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Grille - Plinth Installation
REMOVING AND INSTALLING GRILLE
WARNING
!
Disconnect electric power to the unit before
removing the grille.
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
1. Disconnect power to the unit.
2. Remove control knob (4).
3. Loosen the two screws (1).
4. Remove grille (2) and grille cap (3) from unit.
Installing the grille
1. Make sure grille cap (3) is behind grille in slots
provided in grille before attaching grille to unit.
2. Align cabinet and grille holes and secure, but do not
over tighten grille screws (1).
3. Install control knob (4) if equipped.
4. Reconnect power to the unit.
Grille - Plinth Installation 1
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USER GUIDE
1/4" Min. (6 mm)
90°
Door Swing
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Door Swing
All units have a zero clearance for the door to open 90°.
U-Line recommends a minimum door clearance of 1/4"
(6 mm) to accommodate the handle if the unit is installed
next to a wall.
Door Swing 1
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USER GUIDE
NOTICE
Hinge screws
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SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Door Adjustments
CHECKING DOOR ALIGNMENT
The unit’s door is aligned at the factory before shipment.
However, its alignment could have been disturbed during
shipment.
Properly aligned, the door’s gasket should be
firmly in contact with the cabinet all the way
around the door (no gaps).
1. Carefully examine the door’s gasket to ensure that it is
firmly in contact with the cabinet.
2. When inspecting door alignment, make sure the door
gasket is not pinched on the hinge side of the door.
To reverse the door mounting, perform the following:
1. Remove grille (see GRILLE-PLINTH INSTALLATION).
2. Remove top hinge from cabinet (three screws). Hold
door to keep it from falling.
3. Lift the door off the bottom hinge.
ALIGNMENT AND ADJUSTMENT
1. Loosen (do not remove) top and bottom hinge screws.
2. Align door squarely with cabinet. Make sure gasket is
firmly in contact with cabinet all the way around the
door (no gaps).
3. Tighten bottom hinge screws.
4. Tighten top hinge screws.
REVERSING THE DOOR
Location of the unit may make it desirable to mount the
door on the opposite side of the cabinet.
The hinge hardware will be removed and reinstalled on the
opposite side of the cabinet.
4. Remove bottom hinge from cabinet (two screws).
5. Remove screws on opposite side of cabinet.
Door Adjustments 1
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USER GUIDE
1
Plastic
Hole Plug
Plastic
Hole Plug
Screw
Right Side
Door Swing
Right Side
Invert
Invert
Left Side
Door Swing
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SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
6. Install hinge on opposite side at bottom of cabinet.
Align hinge outer edge with cabinet before tightening
screws.
7. Relocate plastic spacer/bushing on top and bottom of
door to opposite side. Clean out bushing hole in door
bottom with a screwdriver if necessary.
9. Remove plastic hole plug from door handle and
relocate to opposite side. Lift the handle slightly and
press on the locking tab, then gently pry the hole plug
out of the hole, being careful not scratch the top cap.
Hinge
Hinge
Screw
Hinge
10.Remove pivot screw from top hinge, invert screw and
reinstall pivot screw in top hinge.
Press in locking tab, then
lightly pry up to remove
hole plug and move to
opposite side
8. Using a Phillips screwdriver, remove the two screws
holding the handle.
11.Place door on lower hinge pin. Invert and install upper
hinge on door. Fasten upper hinge to unit (three
screws). Partially tighten screws.
12.Adjust door to ensure proper seal. Tighten upper and
lower hinge screws securely.
13.Fill holes with remaining screws.
14.Replace the grille.
Door Adjustments 2
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USER GUIDE
NOTICE
OFF
ON
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First Use
All U-Line controls are preset at the factory. Initial startup
requires no adjustments.
U-Line recommends allowing the unit to run
overnight before loading with product. As warm
air rises, the temperature inside the unit tends
to be slightly warmer at the top and slightly
cooler at the bottom.
To turn the unit on or off:
Press the rocker switch located below the temperature
control dial in the center of the grille.
CONTROL DIAL
The control dial sets a single continuous temperature.
This set point temperature is a base setting used by the
controller to maintain the temperature zone in the unit.
The factory default MID setting, number 3 or 4 set point,
is approximately 38°F (3°C). The set point temperature is
a gauge for further temperature adjustments.
First Use 1
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USER GUIDE
NOTICE
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SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Airflow and Product Loading
The unit requires proper airflow 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 evaporator and
product loaded. Anything in direct contact with
the evaporator is subject to freezing.
When properly loaded, your U-Line unit will store up to 48
(12 oz. [330 ml]) cans or 35 (12 oz. [330 ml]) bottles.
Airflow and Product Loading 1
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USER GUIDE
NOTICE
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SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Interior Shelves
REMOVING AND INSTALLING INTERIOR
SHELVES
For models equipped with glass shelves having shelf
supports, remove the shelves as follows:
1. Open door completely.
2. Grasp the shelf edge in the center and slide the shelf
from the unit.
Insert the shelves as follows:
1. With the door still fully opened, reposition the shelf as
required, ensure the raised white edge strip is toward
the rear of the unit and slide the shelf back into
position.
Make sure the shelves are inserted fully into the
unit.
The edge strip toward the rear prevents cans
and bottles from freezing against the cold
evaporator.
Interior Shelves 1
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USER GUIDE
1
2
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SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Door Shelves
REMOVING AND INSTALLING DOOR SHELVES
To remove the door shelf:
1. Grasp shelf in center, and lift until the shelf notches (1)
clear the pins (2).
2. Carefully pull the shelf away from the door.
To install the door shelf:
1. Holding the shelf in the center, center the shelf in the
door at the desired location, slightly above the pins
(2).
2. Lower the shelf onto the pins (2).
Door Shelves 1
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USER GUIDE
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SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Cleaning
EXTERIOR CLEANING
Vinyl Clad (Black or White)
Clean surfaces with a mild detergent and warm water
solution. Do not use solvent-based or abrasive cleaners.
Use a soft sponge and rinse with clean water. Wipe with a
soft, clean towel to prevent water spotting.
Clean any glass surfaces with a non-chlorine glass
cleaner.
Stainless Models
Stainless door panels, handles and frames can discolor
when exposed to chlorine gas, pool chemicals, saltwater
or cleaners with bleach.
Keep your stainless unit looking new by cleaning with a
good quality all-in-one stainless steel cleaner and polish
monthly. For best results use Claire
Polish and Cleaner. Comparable products are acceptable.
Frequent cleaning will remove surface contamination that
could lead to rust. Some installations may require cleaning
weekly.
®
Stainless Steel
If any surface discoloring or rusting appears, clean it
quickly with Bon-Ami
and a nonabrasive cloth. Always clean with the grain.
Always finish with Claire
Cleaner or comparable product to prevent further
problems.
Using abrasive pads such as Scotchbrite™ 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.
Integrated Models
To clean integrated panels, use household cleaner per the
cabinet manufacturer’s recommendation.
INTERIOR CLEANING
Disconnect power to the unit.
Clean the interior and all removed components using a
mild nonabrasive detergent and warm water solution
applied with a soft sponge or non-abrasive cloth.
®
or Barkeepers Friend Cleanser®
®
Stainless Steel Polish and
Do not clean with steel wool pads.
Do not use stainless steel cleaners polishes on
any glass surfaces.
Clean any glass surfaces with a non-chlorine glass
cleaner.
Do not use cleaners not specifically intended for
stainless steel on stainless surfaces (this
includes glass, tile and counter cleaners).
Rinse the interior using a soft sponge and clean water.
Do not use any solvent-based or abrasive
cleaners. These types of cleaners may transfer taste to
the interior products and damage or discolor the interior.
DEFROSTING
Under normal conditions this unit does not require manual
defrosting. Minor frost on the rear wall or visible through
the evaporator plate vents is normal and will melt during
each off cycle.
If there is excessive build-up of 1/4" (6 mm) or more,
manually defrost the unit.
Ensure the door is closing and sealing properly.
Cleaning 1
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USER GUIDE
NOTICE
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SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
High ambient temperature and excessive humidity can
also produce frost.
CAUTION
!
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.
The drain pan was not designed to capture the
water created when manually defrosting. To
prevent water from overflowing the drain pan,
place towels or other absorbent materials over
the interior drain trough (under the evaporator)
before defrosting.
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 the frost to melt naturally.
5. After the frost melts completely clean the interior and
all removed components. (See INTERIOR CLEANING).
6. When the interior is dry, reconnect power and turn unit
on.
Cleaning 2
Page 24
USER GUIDE
NOTICE
Condenser
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Cleaning Condenser
INTERVAL - EVERY SIX MONTHS
To maintain operational efficiency, keep the front grille
free of dust and lint, and clean the condenser when
necessary. Depending on environmental conditions, more
or less frequent cleaning may be necessary.
WARNING
!
Disconnect electric power to the unit before
cleaning the condenser.
WARNING
!
DO NOT touch the condenser fins. The condenser
fins are SHARP and can be easily damaged.
DO NOT use any type of cleaner on the
condenser unit.
1. Remove the grille. (See GRILLE-PLINTH
INSTALLATION).
2. Clean the condenser coil using a using a soft brush
with a “combing” action or vacuum cleaner. Do not
touch the condenser coil.
3. Install the grille.
Cleaning Condenser 1
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USER GUIDE
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Extended Non-Use
VACATION/HOLIDAY, PROLONGED SHUTDOWN
The following steps are recommended for periods of
extended non-use:
1. Remove all consumable content from the unit.
2. Disconnect the power cord from its outlet/socket and
leave it disconnected until the unit is 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 prevent formation of
mold and mildew. Open door a minimum of 2"
(50 mm) to provide the necessary ventilation.
WINTERIZATION
If the unit will be exposed to temperatures of 40°F (5°C)
or less, the steps above must be followed.
For questions regarding winterization, please
call U-Line at +1.800.779.2547.
CAUTION
!
Damage caused by freezing temperatures is not
covered by the warranty.
Extended Non-Use 1
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USER GUIDE
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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 +1.800.779.2547.
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.
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.
• 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
Interior Light
Does Not
Illuminate.
Light Remains
on When Door Is
Closed.
Unit Develops
Frost on Internal
Surfaces.
Unit Develops
Condensation on
External
Surfaces.
Product Is
Freezing.
If the unit is cooling, it may be in Sabbath
mode.
Turn off light switch if equipped.
Adjust light actuator bracket on bottom of
door.
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.
The unit is exposed to excessive humidity.
Moisture will dissipate as humidity levels
decrease.
Because product in contact with the rear wall
may freeze, ensure no product is touching the
rear wall.
Adjust the temperature to a warmer set point.
• Compressor: The compressor makes a hum or pulsing
sound that may be heard when it operates.
Troubleshooting 1
Page 27
USER GUIDE
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Problem Possible Cause and Remedy
Product Is Not
Cold Enough.
Air temperature does not indicate product
temperature. See CHECKING PRODUCT
TEMPERATURE below.
Adjust the temperate 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.
CHECKING PRODUCT TEMPERATURE
Causes which affect the internal temperatures of
the cabinet include:
• Temperature setting.
• Ambient temperature where installed.
• Installation in direct sunlight or near a heat source.
• The number of door openings and the time the door is
open.
• The time the internal light is illuminated. (This mainly
affects product on the top rack or shelf.)
• Obstruction of front grille or condenser.
To check the actual product temperature in the
unit:
1. Partially fill a plastic (nonbreakable) bottle with water.
2. Insert an accurate thermometer.
3. Tighten the bottle cap securely.
4. Place the bottle in the desired area for 24 hours.
5. Avoid opening the unit during 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).
Troubleshooting 2
Page 28
USER GUIDE
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
U-Line Corporation (U-Line) Limited Warranty
One Year Limited Warranty
For one year from the date of original purchase, this U-Line product warranty covers all parts and labor to repair or replace any part of the
product that proves to be defective in materials or workmanship. For products installed and used for normal residential use, material
cosmetic defects are included in this warranty, with coverage limited to 60 days from the date of original purchase. All service provided by U-
Line under the above warranty must be performed by U-Line factory authorized service, unless otherwise specified by U-Line. Service
provided during normal business hours.
Available Second Year Limited Warranty
Beyond the standard one year warranty outlined above, U-Line offers an extension of the one year warranty coverage for an additional
second year from the date of purchase, free of charge. To take advantage of this second year warranty, you must register your product with
U-Line within two months from the date of purchase at u-line.com providing proof of purchase.
Five Year Sealed System Limited Warranty
For five years from the date of original purchase, U-Line will repair or replace the following parts, labor not included, that prove to be
defective in materials or workmanship: compressor, condenser, evaporator, drier, and all connecting tubing. All service provided by U-Line
under the above warranty must be performed by U-Line factory authorized service, unless otherwise specified by U-Line. Service provided
during normal business hours.
Terms
These warranties apply only to products installed in any one of the fifty states of the United States, the District of Columbia, or the ten
provinces of Canada. The warranties do not cover any parts or labor to correct any defect caused by negligence, accident or 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 the U-Line User Guide.
The remedies described above for each warranty are the only ones that U-Line will provide, either under these warranties or under any
warranty arising by operation of law. U-Line will not be responsible for any consequential or incidental damages arising from the breach of
these warranties or any other warranty, whether express, implied, or statutory. Some states do not allow the exclusion or limitation of
incidental or consequential damages, so the above limitation or exclusion may not apply to you. These warranties give you specific legal
rights, and you may also have other rights which vary from state to state.
Any warranty that may be implied in connection with your purchase or use of the product, including any warranty of merchantability or any
warranty fit for a particular purpose is limited to the duration of these warranties, and only extends to five years in duration for the parts
described in the section related to the five ye ar limited warranty above. Some states do not all ow limitations on how long an implied warranty
lasts, so the above limitations may not apply to you.
• The warranties only apply to the original purchaser and are non-transferable.
• The second year and five year warranties cover products installed and used for normal residential or designated marine use only.
• The warranties apply to units operated outside only if designed for outdoor use by model and serial number.
• Replacement water filters, light bulbs, and other consumable parts are not covered by these warranties.
• The start of U-Line’s obligation is limited to four years after the shipment date from U-Line.
• In-home instruction on how to use your product is not covered by these warranties.
• Food, beverage, and medicine loss are not covered by these warranties.
• If the product is located in an area where U-Line factory authorized service is not available, you may be responsible for a trip charge
or you may be required to bring the product to a U-Line factory authorized service location at your own cost and expense.
• Units purchased after use as floor displays
no coverage is provided for cosmetic defects.
• Signal issues related to Wi-Fi connectivity are not covered by these warranties.
, and/or certified reconditioned units, are covered by the limited one year warranty only and
For parts and service assistance, or to find U-Line factory authorized service near you, contact U-Line:
8900 N. 55th Street, Milwaukee, WI 53223 • u-line.com • onlineservice@u-line.com • +1.800.779.2547
Copyright © 2014/2017 U-Line Corporation. All Rights Reserved. | Publication Number 30379 | 10/2017 Rev. L
Warranty 1
Page 29
USER GUIDE
42341_A WIRING DIAGRAM
GROUND:
GREEN or GREEN W/ YELLOW
115
VOLT
PLUG
220-240 VOLT
PLUG
CONTROL
SEE COMPRESSOR
DIAGRAMS
BLUE
BLACK-HOT
(SMOOTH)
BLACK-NEUTRAL
(RIBBED)
BLACK
WHITE
FAN
WHITE
BLACK
RED
BLUE
BROWN
NEUTRAL
HOT
RELAY
EMBRACO
COMPRESSOR
GREEN or
GREEN W/ YELLOW
GROUND:
OVERLOAD
CAP
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Wire Diagram
u-line.com
Wire Diagram 1
Page 30
USER GUIDE
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Product Liability
Field service technicians are authorized to make an initial
assessment in the event of reported damages. If there are
any questions about the process involved, the technician
should call U-Line for further explanation.
While inspecting for defects or installation issues, photos
should be taken to document any damages or issues
found.
During the assessment, if the service technician is able to
find the source of the damage and it can be resolved by
replacement of 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 the
unit it was removed from, the date, and the servicer who
removed the part.
If the service technician determines the damage is the
result of installation issues (water connection/drain, etc.),
the consumer would be notified and the issues shall be
resolved at the direction of the consumer.
If damage is evident and the service technician is unable
to find the source, U-Line must be contacted at 1-800-
799-2547 for further direction
8900 N. 55th Street • Milwaukee, WI 53223
T: +1.414.354.0300 • F: +1.414.354.354.5696
Website: www.u-line.com
Right product. Right place.
Right temperature Since 1962.
Product Liability 1
Page 31
USER GUIDE
14 30911 1 2 XXXX
Year
Month
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Warranty Claims
The following information defines the parameters for filing
a warranty claim:
• Valid serial number needed
• Valid model number needed
• Narda (or equivalent) form or submitted online at
www.u-line.com
• 60 day submittal deadline from date of completed
service
• Only one repair or unit per warranty claim
• Refrigerant should be labeled and included on the labor
submittal
warranty status. We also accept the following
information to verify warranty status:
• New Construction Occupancy Documents
•Closing Paperwork
• Final Billing – Remodel
Noting all of the following on the warranty claim will be
considered proof of purchase, hard copy will not be
required:
• Name of the selling Dealer
• Date of purchase/installation
• Order or Invoice number (if available)
• Door and water level adjustments are covered 30 days
from install date.
Serial Number Requirements:
A typical serial number is shown above. The first two
digits of the first segment, 14, represents the production
year. The number between the dashes, 12, represents the
production month. In most cases, warranty status can be
verified by the production date information within the
serial number.
• Description of document reviewed (i.e. store receipt,
closing paperwork, etc)
Parts and labor claims are paid separately. Indicate part
numbers and description for parts used in the warranty
repair. Include the purchase invoice and name of the parts
supplier used to procure the parts.
• Alternatively, a Proof of Purchase (or equivalent) may
submitted with the warranty claim to document
Warranty Claims 1
Page 32
12
17
Parts
7
U-29RB-00A
Item Description U-Line P/N
1 Back panel 80-54505-00
2 Bottle retainer, long 80-54530-00
3 Bottle retainer, short 80-54533-00
1
16
4
14
20
19
2
3
4 Compressor electricals only 80-54149-00
5 Compressor w/electricals 80-54150-00
6 Condenser assembly 80-54521-00
7 Condenser fan w/screws 80-54014-00
8 Control assembly 80-54192-00
9 Control knob 80-54382-00
10 Door assembly w/o hinges 80-54514-00
11 Drain pan 80-54217-00
12 Drain trough 80-54520-00
13 Drier 80-54055-00
14 Evap assembly 80-54518-00
15 Gasket, door 80-54515-00
16 Glass shelf (1) 80-54525-00
17 Glass shelf (1), btm 80-54527-00
18 Grille w/ screws 80-54522-00
10
19 Handle w/screws 80-54539-00
20 Hinges (2) w/screws 80-54513-00
21 Legs (4) 80-54529-00
22 Packaging 80-54517-00
23 Power cord 80-54528-00
15
24 Transformer 80-54203-00
11
8
18
9
5
6
21
Parts 1
Page 33
USER GUIDE
NOTICE
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Ordering Replacement Parts
If you have a purchasing account, please utilize our
service website to order parts.
Orders may also be placed by Fax or phone. See our
contact information below:
www.U-LineService.com (with service login)
FAX Number: +1.414.354.5696
Phone Number: +1.800.779.2547
Use only genuine U-Line replacement parts. The
use of non-U-Line parts can reduce speed of ice
production, cause water to overflow from ice
maker mold, damage the unit, and void the
warranty.
Warranty parts will 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 requires the return of original parts, we will
inform you when the parts order is taken. This
requirement will be noted on your packing list. A prepaid
shipping label will be included with the replacement part.
Please enclose a copy of the parts packing list and any
labor claims with your return. Please be sure the model
and serial numbers are legible on the paperwork. Tag the
part with the reported defect.
When ordering a non-warranty part, you will need an open
account and tax exemption on file at U-Line. Another
option would be to visit www.u-line.com to locate an
authorized parts distributor in your area.
Ordering Replacement Parts 1
Page 34
USER GUIDE
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
System Diagnosis Guide
REFRIGERATION SYSTEM DIAGNOSIS GUIDE
System
Condition
Normal Normal Slightly below
Overcharge Higher than
Undercharge Lower than
Partial
Restriction
Complete
Restriction
No Gas 0 PSIG to 25" Room
Suction
Pressure
normal
normal
Somewhat
lower than
normal vacuum
In deep
vacuum
Suction
Line
room
temperature
Very cold may
frost heavily
Warm-near
room
temperature
Warm - near
room
temperature
Room
temperature
(cool)
temperature
(cool)
Compressor
Discharge
Very hot Very hot Warm Cold Normal
Slightly warm
to hot
Hot Warm Warm Extremely cold
Very hot Top passes
Room
temperature
(cool)
Cool to hot Room
Condenser Capillary
Hot to warm Cool Cold Higher than
warm - Lower
passes cool
(near room
temperature)
due to liquid
Room
temperature
(cool)
temperature
(cool)
Tube
Room
temperature
(cool) or
colder
Room
temperature
(cool)
Room
temperature
(cool)
Evaporator Wattage
normal
Lower than
near inlet -
Outlet below
room
temperature
Extremely cold
near inlet -
Outlet below
room
temperature
backing up
No refrigeration Lower than
No refrigeration Lower than
normal
Lower than
normal
normal
normal
System Diagnosis Guide 1
Page 35
USER GUIDE
C
S
R
OVERLOAD PROTECTOR
STARTING RELAY
CAPACITOR
RELAY COVER
ULIN_0368_A
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Compressor Specifications
DANGER
!
Electrocution can cause death or serious injury.
Burns from hot or cold surfaces can cause
serious injury. Take precautions when servicing
this unit.
EMU30HSC
Disconnect the power source.
Do not stand in standing water when working
around electrical appliances.
Make sure the surfaces you touch 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.
Refrigerant R134a
Voltage 115 VAC
Frequency 60 Hz
Run Cap 12μF/180 VAC
Start Winding 70 Ohm at 77°F
Run Winding 8.4 Ohm at 77°F
LRA 5.5 A
FLA 1.0 A
Starting Device 8EA14C
Overload 4TM197NFBYY-53
* All resistance readings are ±10%
Handle circuit boards carefully and avoid
touching components.
To measure the start winding resistance, measure across
the C and S pins.
To measure the run winding resistance, measure across
the C and R pins.
Also check S to R and you should get the sum of the run
and start windings.
To ensure the windings are not shorted, check the S and R
to ground.
Compressor Specifications 1
Page 36
USER GUIDE
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Troubleshooting - Extended
SPECIFIC ERRORS & ISSUES
CAUTION
!
Never attempt to repair or perform maintenance
on the unit until the main electrical power has
been disconnected from the unit.
TROUBLESHOOTING GUIDE
Concern Potential Causes Suggested Remedy
Not Cooling Compressor overheating Verify proper air flow through condenser. (Refer to Airflow/General
Compressor not operating Test overload and relay, replace as needed.
Compressor operating - no cooling Refer to Refrigeration System Diagnosis Guide Section of this manual.
Evaporator fan not operating, convect cool
models only
Frozen Product Control set too cold Refer to Adjusting Air Temperature Section of this manual.
Frost Buildup
Inside Unit
Internal Lights
Not Working
Noisy Refrigeration tubing touching cabinet Carefully reposition tubing.
Ice Buildup In
Drain Trough or
Drain Problem
Door ajar or restricted from closing Inspect/Repair door closure, adjust as needed.
Door switch misaligned or defective Check light switch, wiring and actuator. Adjust as needed.
Door switch misaligned or defective
electronic control models only
Fan blade obstruction (wiring, foam
insulation, packaging material)
Obstructed drain cup or tube Clear as needed, test flow.
Kinked condensate drain line Reroute condensate drain line and test flow.
Drain trough and cup misaligned Trough is slotted for adjustment. Loosen retainers and adjust as needed.
information Section of this manual)
Confirm condenser fan operation. (Refer to Airflow/General information
Section of this manual)
Refer to Convection Cooling Section of this manual. convect cool models
only
Refer to Reed Switch Section of this manual.
electronic control models only
Remove obstruction.
Troubleshooting - Extended 1
Page 37
USER GUIDE
DOES THE UNIT REFRIGERATE?
Sealed System Leak
Electrical Failure
Compressor Failure
Fan Motor Failure
Defrost System Failure
Low Voltage
Voltage Drop
Wiring
Temperature Control Failure
Water Adjustment
Bin Switch Failure
NO
NO
EVERYWHERE
INTERMITTENT
AT 3:00
YES
NO
AT 12:00
DOES THE UNIT HARVEST ICE
IF THE EJECTOR BLADES ARE
MOVED BY HAND OR WITH A
WRENCH ?
WHERE DO THE
EJECTOR BLADES
STOP?
Mold Heater Failure
Solenoid Valve Failure
Ice Motor Failure
Hold Switch Failure
Limit Switch Failure
Binding Cam/Ejector
Water Switch Failure
IS THERE VOLTAGE AT THE
SOLENOID VALVE TERMINALS
DURING HARVEST?
UL183-11
YES
YES
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
ICE MAKER DIAGNOSIS FLOW CHART
Troubleshooting - Extended 2
Page 38
USER GUIDE
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
PRODUCT TEMPERATURE
Causes which affect the internal temperatures of
the cabinet include:
• Temperature setting.
• Ambient temperature where installed.
• Installation in direct sunlight or near a heat source.
• The number of door openings and the time the door is
open.
• The time the internal light is illuminated. (This mainly
affects product on the top rack or shelf.)
• The front grille or condenser are obstructed.
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.
• 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.
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
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.
Troubleshooting - Extended 3
Page 39
USER GUIDE
FREEZE CYCLE
SWITCH
LIMIT
orange
black
black
black
MOTOR
MAKER
ICE
MOLD HEATER
WATER
SWITCH
FILL
C
NC
MOTOR
FAN
LOAD
OVER
black
RELAY
START
COMP.
SWITCH
OFF
ON
black
black
blue
black
CONTROL
TEMP.
NC
black
orange
3
yellow
2
orange
SWITCH
BIN
red
NO
1
C
NO
brown
black
white
C
SWITCH
HOLD
VALVE
WATER
ground
UL183-4
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
REFRIGERATION SYSTEM DIAGNOSIS GUIDE
System
Condition
Suction
Pressure
Suction
Line
Normal Normal Slightly below
room
temperature
Overcharge Higher than
normal
Very cold -
may frost
heavily
Undercharge Lower than
normal
Warm -
near room
temperature
Partial
Restriction
Somewhat
lower than
normal -
Warm -
near room
temperature
in vacuum
Complete
Restriction
In deep
vacuum
Room
temperature
(cool)
No Gas 0 PSIG to 25" Room
temperature
(cool)
ICE MAKER OPERATING CYCLES
Compressor
Discharge
Condenser Capillary
Tube
Evaporator Wattage
Very hot Very hot Warm Cold Normal
Slightly warm
to hot
Hot Warm Warm Extremely cold
Hot to warm Cool Cold Higher than
normal
Lower than
near inlet -
normal
outlet below
room
temperature
Very hot Top passes warm
lower passes
cool (near room
temperature due
to liquid
Room
temperature
(cool) or colder
Extremely cold
near inlet -
outlet below
room
temperature
Lower than
normal
backing up
Room
temperature
(cool)
Cool to hot Room
Room
temperature
(cool)
temperature
(cool)
Room
temperature
(cool)
Room
temperature
(cool)
No refrigeration Lower than
normal
No refrigeration Lower than
normal
Power to the compressor.
Freeze Cycle
Temperature control terminals 2 and 3 are closed.
Power to the condenser fan.
Troubleshooting - Extended 4
Page 40
USER GUIDE
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Harvest-1 Cycle
Temperature control terminals 2 and 3 are open - 2 and 1
close.
No power to the compressor or condenser fan.
HARVEST-1 CYCLE
(Hold Switch In Normal Position)
ON
OFF
SWITCH
LIMIT
SWITCH
black
black
black
COMP.
START
RELAY
FAN
MOTOR
OVER
LOAD
black
orange
black
C
black
WATER
FILL
SWITCH
blue
NC
MOLD HEATER
black
ICE
MAKER
MOTOR
If bin arm is down, power goes through bin arm switch to
the ice maker motor. If bin arm is up, the ice maker will
not harvest.
black
ground
orange
black
brown
3
TEMP.
CONTROL
yellow
WATER
VALVE
HOLD
SWITCH
NC
2
NO
red
BIN
1
SWITCH
white
C
NO
C
orange
UL183-5
Troubleshooting - Extended 5
Page 41
USER GUIDE
HARVEST-2 CYCLE
(Hold Switch In Switched Position)
SWITCH
LIMIT
orange
black
black
black
MOTOR
MAKER
ICE
MOLD HEATER
WATER
SWITCH
FILL
C
NC
MOTOR
FAN
LOAD
OVER
black
RELAY
START
COMP.
SWITCH
OFF
ON
black
black
blue
black
CONTROL
TEMP.
NC
black
orange
3
yellow
2
orange
SWITCH
BIN
red
NO
1
C
NO
brown
black
white
C
SWITCH
HOLD
VALVE
WATER
ground
UL183-6
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Harvest-2 Cycle
Ice maker ejector blades reach approximately 2:00
position and cam depresses the hold switch. Power goes
through the hold switch to the ice maker motor and mold
heater.
Ejector blades stall on ice and ice maker motor pulsates
until mold heater warms and ice releases.
Troubleshooting - Extended 6
Page 42
USER GUIDE
WATER FILL CYCLE
SWITCH
LIMIT
orange
black
black
black
MOTOR
MAKER
ICE
MOLD HEATER
WATER
SWITCH
FILL
C
NC
MOTOR
FAN
LOAD
OVER
black
RELAY
START
COMP.
SWITCH
OFF
ON
black
black
blue
black
CONTROL
TEMP.
NC
black
orange
3
yellow
2
orange
SWITCH
BIN
red
NO
1
C
NO
brown
black
white
C
SWITCH
HOLD
VALVE
WATER
ground
UL183-7
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Water Fill Cycle
Ice maker ejector blades reach approximately 10:00
position and cam depresses the water fill switch.
Power to the water valve. Ice maker mold fills.
Eject Cycle
Ejector blades push ice into bucket and stop at 12:00
position.
Temperature control terminals 2 and 3 have closed during
harvest cycle.
Next freeze cycle begins with power to the compressor
and condenser fan.
Troubleshooting - Extended 7
Page 43
USER GUIDE
YELLOW WIRE
CONNECTION
RED WIRE
CONNECTION
BLUE/BLACK WIRE
CONNECTION
ICE MAKER CONTROL
2
1
3
183-8
22
1
3
1
3
FREEZE POSITION ICE HARVEST POSITION
CYCLE
CLOSED
CIRCUIT
OPEN
CIRCUIT
FREEZE 2 - 1 2 - 3
HARVEST 2 - 3 2 - 1
183-9
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
TEMPERATURE CONTROL SPECIFICATIONS
These temperature controls are double throw, single pole
controls. The sensing tube is inserted into the ice maker
mold and senses mold temperature. After ice is sensed in
the mold, the 2-3 contacts open (stopping the
compressor) and the 2-1 contacts are closed (starting the
ice maker motor). The 2-3 contacts close (2-1 contacts
open) before the end of the ice harvest cycle. The hold
switch prevents power going back to the compressor. This
prepares the control for the next cycle.
Troubleshooting - Extended 8
Page 44
USER GUIDE
28.12
3.00
183-10
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
LIMIT SWITCH SPECIFICATIONS
Normally closed Bi-metal switch
Open temperature: 104°F
Close temperature: 83°F
The function of this switch is to open in the event of an
overheating condition. This bi-metal thermostat is
normally closed and does not initiate the ice harvest
cycle. The ice harvest cycle is initiated by a double throw,
single pole temperature located remotely from the ice
maker assembly.
Troubleshooting - Extended 9
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SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
FROST FREE REFRIGERATION
Cooling Mode
Bypass solenoid closed.
Evaporator fan operating.
Refrigerant flows through capillary tubes.
Normal vapor/compression cycle refrigeration.
Defrost Mode
Bypass solenoid valve open.
Refrigerant flows through bypass system.
Vapor flows from condenser to evaporator without a phase
change.
Drain heater on (U-CO29F only).
COMPRESSOR
CONDENSER
DRYER
FLOW WHEN SOLENOID
VALVE IS CLOSED
CAPILLARY TUBE
SOLENOID VALVE
EVAPORATOR
FLOW WHEN SOLENOID
VALVE IS OPEN
ULIN_0369_A
Troubleshooting - Extended 10
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Air flow in at
evaporator blade
Air flow out at
evaporator outlet
Air passes though
fin tube evaporator
Condensate drains down past the
evaporator, into drain pan, and into
condensate pan through drain hose.
The drain trough is warmed during
defrost by contact with evaporator
fins. On U-CO29F model, drain
trough is also warmed by drain
heater attached to the drain pan.
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SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
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 cooling.
Defrost 1
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