KitchenAid Kitchen Aid KAR-19 User manual

TECHNICAL EDUCATION
JOB AID 4317408
KAR-19
2007 DESIGN
15q& 18qAUTOMATIC
ICE MAKERS
KUIA15NRH*11
KUIA15PRL*11
KUIA15NLH*11
KUIA15PLL*11
* Denotes Color Designation
KUIA18NNJ*11
KUIA18PNL*11
Intoductory Models

- ii -
WHIRLPOOLCORPORATIONassumesnoresponsibilityforanyrepairsmade
on our products by anyone other than In-Home Service Professionals.
FORWARD
This KitchenAid Job Aid “2007 Design 15" & 18" Automatic Ice Makers” (Part No. 4317408),
provides the In-Home Service Professional with information on the installation, operation, and
serviceof the2007 Design15" &18"AutomaticIce Makers.For specific information on the model
being serviced, refer to the “Use and Care Guide,” or “Tech Sheet” provided with the ice maker.
The Wiring Diagram and Strip Circuits used in this Job Aid are typical and should be used for
training purposes only.Always use the Wiring Diagram supplied with the product when servicing
the ice maker.
GOALS AND OBJECTIVES
The goal of this Job Aid is to provide detailed information that will enable the In-Home Service
Professional to properly diagnose malfunctions and repair the KitchenAid 2007 Design 15" & 18"
Automatic Ice Makers.
The objectives of this Job Aid are to:
• Understand and follow proper safety precautions.
• Successfully troubleshoot and diagnose malfunctions.
• Successfully perform necessary repairs.
• Successfully return the ice maker to its proper operational status.
Copyright © 2007, Whirlpool Corporation, Benton Harbor, MI 49022

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TABLE OF CONTENTS Page
GENERAL .............................................................................................................................. 1-1
Ice Maker Safety................................................................................................................ 1-1
KitchenAid Model & Serial Number Designations.............................................................. 1-2
Model & Serial Number Label Location.............................................................................. 1-3
Specifications..................................................................................................................... 1-4
INSTALLATION INFORMATION ............................................................................................ 2-1
Electrical Supply Requirements......................................................................................... 2-1
Water Supply And Drain Connections................................................................................ 2-2
THEORY OF OPERATION .................................................................................................... 3-1
Operating Systems............................................................................................................. 3-1
Operational Modes............................................................................................................. 3-5
Models With Internal Drain Pumps..................................................................................... 3-8
COMPONENT ACCESS ........................................................................................................ 4-1
Component Locations........................................................................................................ 4-1
Removing The Bin Thermistor, Cutter Grid, Evaporator Thermistor,
& Water Distributor......................................................................................................... 4-2
Removing The Electronic Control Housing Components................................................... 4-5
Removing The Water Recirculation Pump......................................................................... 4-7
Removing The Reservoir Drain Pump & Water Level Sensor............................................ 4-8
Removing The Condenser Fan Motor................................................................................ 4-9
Removing The Evaporator............................................................................................... 4-12
Removing The Measured Fill Water Valve....................................................................... 4-16
Removing The Hot Gas Valve & Solenoid ....................................................................... 4-17
Removing The Condenser............................................................................................... 4-18
Removing The Compressor............................................................................................. 4-19
Removing The Internal Drain Pump................................................................................. 4-21
Removing The Ice Maker Door & Gasket (15" Models)................................................... 4-22
Removing The Ice Maker Door & Gasket (18" Models)................................................... 4-23
COMPONENT TESTING ........................................................................................................ 5-1
Bin Thermistor.................................................................................................................... 5-1
Evaporator Thermistor ....................................................................................................... 5-1
Cutter Grid.......................................................................................................................... 5-2
Dual Transformer ............................................................................................................... 5-2
Water Recirculation Pump ................................................................................................. 5-3
Reservoir Drain Pump........................................................................................................ 5-3
Water Level Sensor............................................................................................................ 5-4
Condenser Fan Motor........................................................................................................ 5-4
Measured Fill Water Valve ................................................................................................ 5-5
Hot Gas Valve Solenoid..................................................................................................... 5-5
Compressor, Overload Protector, & Relay......................................................................... 5-6

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DIAGNOSTICS & TROUBLESHOOTING ............................................................................. 6-1
Water And Its Effect On Making Ice ................................................................................... 6-1
Troubleshooting Chart........................................................................................................ 6-2
Diagnostic Flow Chart For Ice Maker Control Board ......................................................... 6-5
WIRING DIAGRAM & STRIP CIRCUITS ............................................................................... 7-1
Wiring Diagram .................................................................................................................. 7-1
Strip Circuits....................................................................................................................... 7-2
TECH TIPS ............................................................................................................................. 8-1
Cleaning The Ice Maker..................................................................................................... 8-1
Cleaning The Evaporator Plate....................................................................................... 8-1
Page

1-1
GENERAL
ICE MAKER SAFETY
Your safety and the safety of others are very important.
We have provided many important safety messages in this manual and on the appliance.
Always read and obey all safety messages.
This is the safety alert symbol.
This symbol alerts you to potential hazards that can kill or hurt you and others.
All safety messages will follow the safety alert symbol and either the word
“DANGER” or “WARNING.” These words mean:
All safety messages will tell you what the potential hazard is, tell you how to reduce the chance
of injury, and tell you what can happen if the instructions are not followed.
You can be killed or seriously injured if you don’t
immediately follow instructions.
You can be killed or seriously injured if you don’t
follow instructions.
WARNING
WARNING
DANGER
DANGER

1-2
KITCHENAID MODEL & SERIAL NUMBER DESIGNATIONS
MODEL NUMBER
SERIAL NUMBER
MODEL NUMBER K UI A 15 NR H S 0
INTERNATIONAL SALES IND.
OR MARKETING CHANNEL
IF PRESENT
PRODUCT GROUP
K = KITCHENAID
PRODUCT IDENTIFICATION
UI = UNDERCOUNTER ICE MAKER
MERCHANDISING SCHEME
A = ARCHITECT C = CULINARY & ARCHITECT II
S = STANDARD O = OUTDOOR
V = SIGNATURE SERIES
CAPACITY / SIZE / SERIES / CONFIGURATION
15 = 15" WIDE
18 = 18" WIDE
FEATURES
PR = PUMP, RIGHT HAND DOOR SWING
PL = PUMP, LEFT HAND DOOR SWING
PN = PUMP, NON-REVERSIBLE DOOR SWING
NR = NON-PUMP, RIGHT HAND DOOR SWING
NL = NON-PUMP, LEFT HAND DOOR SWING
NN = NON-PUMP, NON-REVERSIBLE DOOR SWING
YEAR OF INTRODUCTION
H = 1999, J = 2000, K = 2001, L = 2002, S = 2006, T = 2007
COLOR CODE
B = BLACK, W = WHITE, S = STAINLESS
T = BISCUIT, M = METEORITE
ENGINEERING CHANGE (NUMERIC)
SERIAL NUMBER E T 04 54321
DIVISION RESPONSIBILITY
E = EVANSVILLE, IN
YEAR OF PRODUCTION
T = 2006, U = 2007
WEEK OF PRODUCTION
04 = 4th WEEK
PRODUCT SEQUENCE NUMBER

1-3
MODEL & SERIAL NUMBER LABEL LOCATION
The Model/Serial Number label location is shown below.
Model & Serial
Number Location

1-4
AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97 to 127 VAC (rated 115VAC), 60 Hz
Amperage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.5 Amps (max)
Minimum Circuit Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15Amps
Ice Production per 24 hours (Approximate)
SPECIFICATIONS
Ice Shape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/4" x 3/4" Square
Ice Thickness @ Normal Setting (Approximate) . . . . . . . . . . . . . . . . . . . . . . . . .0.32" (8.1 mm)
Ice Thickness @ Thin Setting (Approximate) . . . . . . . . . . . . . . . . . . . . . . . . . . .0.28" (7.0 mm)
Ice Thickness @ Thick Setting (Approximate). . . . . . . . . . . . . . . . . . . . . . . . . . 0.39" (9.9 mm)
15 Inch Storage Capacity (Approximate). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 lbs. (11.3 kg)
18 Inch Storage Capacity (Approximate). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35 lbs. (15.9 kg)
Exterior Dimensions (W x D x H). . . 15" or 18" x 24" x 34" (381 or 457.2 x 609.6 x 863.6 mm)
Exterior Finish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stainless Steel or Painted Steel
Net Weight. . . . . . . . . . . . . . . . . . . . . . . . . . 15" = 94 lbs. (42.6 kg) 18" = 123 lbs. (55.8 kg)
Cube Thickness Control . . . . . . . . . . . . . . . . . . . Water Level Sensor & Control Board Setting
Harvest Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Thermistor under Evaporator
Bin Ice Level Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Thermistor on side of Bin
Refrigerant. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R134a
Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 to 100⋅F
Water Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 to 120 psig
Water Consumption (Dependent On Water Pressure) . . . . . . . . . . 6 to 10 gallons per 4 hours
Water Temperature
60⋅F (15⋅C)
70⋅°F (21°C) 46 lbs (21 kg)
80⋅°F (27°C) 47 lbs (21 kg)
90⋅°F (32°C) 40 lbs (18 kg)
100⋅°F (38°C) 40 lbs (18 kg)
110⋅°F (43°C) 38 lbs (17 kg)
Ambient Temperature

2-1
Before you move the ice maker into its final
location, it is important to make sure you have
the proper electrical connection:
• A115Volt,60Hz,AConly15-or20-ampelectri-
calsupply,properlygroundedinaccordance
with the National Electrical Code and local
codes and ordinances, is required.
• It is recommended that a separate circuit,
servingonlytheicemaker,beprovided.Use
a receptacle which cannot be turned off by
a switch or pull chain.
INSTALLATION INFORMATION
ELECTRICAL SUPPLY REQUIREMENTS
Electrical Shock Hazard
Plug into a grounded 3 prong outlet.
Do not remove ground prong.
Do not use an adapter.
Do not use an extension cord.
Failure to follow these instructions can
result in death, fire, or electrical shock.
IMPORTANT: If this product is connected to
a GFCI (Ground Fault Circuit Interrupter) pro-
tected outlet, nuisance tripping of the power
supply may occur, resulting in the loss of cool-
ing. Ice quality may be affected. If nuisance
tripping has occurred, and if the condition of
the ice appears poor, dispose of it.
Recommended Grounding Method
For personal safety, this appliance must be
grounded. This appliance is equipped with a
powersupplycordhavinga3-pronggrounding
plug. To minimize possible shock hazard, the
cord must be plugged into a mating, 3- prong,
grounding-type wall receptacle, grounded in
accordance with the National Electrical Code
and local codes and ordinances. If a mating
wall receptacle is not available, it is the per-
sonal responsibility of the customer to have
a properly grounded, 3-prong wall receptacle
installed by a qualified electrician.
WARNING
WARNING

2-2
WATER SUPPLY AND DRAIN CONNECTIONS
8. Use 1/4" (6.35 mm) O.D. copper tubing
for the cold water supply and:
a)Measure from the connection at the
back of the ice maker to the cold water
pipe.
b)Add an extra 36" (91.4 cm) to ensure
that you have the proper length. Make
sure both ends of the copper tubing are
cut square.
c)Slip a compression sleeve and com-
pressionnutovertheendsofthecopper
tubing.
d)Insert the end of tubing into the water
shutoff outlet as far as it will go, and
screw the compression nut onto the
outlet. Tighten the compression nut
with an adjustable wrench, but do not
overtighten it.
9. Placethefreeendofthecoppertubinginto
a container or sink, and turn on the main
water supply. Flush the tubing until water
is clear, and then turn off the shutoff valve
onthewaterpipe.NOTE:Alwaysdrainthe
waterlinebeforemakingthefinalconnec-
tion to the inlet of the water valve to avoid
a possible water valve malfunction.
10. Bend the copper tubing to meet the water
line inlet, located on the back of the ice
maker cabinet, as shown below.
CONNECTING THE WATER LINE
1. Turn off the main water supply.
2. Turn on the nearest faucet and allow it to
run long enough to clear line of water.
3. Find a 1/2"(12.70 mm) to 1-1/4" (3.18
cm) vertical cold water pipe near the ice
maker.
NOTE: A horizontal pipe will work, but drill on
the top side of the pipe, not the bottom. This
will keep water away from the drill motor, and
also keeps normal sediment from collecting in
the valve.
4. Using a grounded drill, a 1/4" (6.35 mm)
hole in the cold water pipe you have se-
lected.
5. Fasten a shutoff valve to the cold water
pipewithapipeclamp.Makesurethatthe
outlet end is firmly in the 1/4" (6.35 mm)
drilled hole, and that the washer is under
the pipe clamp.
IMPORTANT: Do not use a piercing-type, or
a 3/16" (4.76 mm) saddle-type valve. These
can reduce water flow and easily become
clogged.
6. Tighten the packing nut.
7. Tighten the pipe clamp screws carefully
and evenly so that the washer makes a
watertight seal. Do not overtighten the
pipe clamp. If the water line is soft copper
tubing, you could crush it.

2-3
11. Thread the nut onto the coupling at the
end of the copper tubing. Tighten the nut
byhand.Thentightenitwithawrenchtwo
more turns. Do not overtighten.
CONNECTING THE DRAIN
Gravity Drain System
Connect the ice maker drain to your drain
in accordance with all state and local codes
and ordinances. If the ice maker is provided
with a gravity drain system, use the following
guidelines when installing the drain lines. This
will avoid water from flowing back into the ice
maker storage bin and potentially flowing onto
the floor, causing water damage.
• Drain lines must have a minimum of 5/8"
(15.88 mm) inside diameter.
• Drain lines must have a 1" drop per 48"
(2.54 cm drop per 122 cm) of run, or 1/4"
drop per 12" (6.35 mm per 30.48 cm) and
not have any low points where water can
settle.
• The floor drains must be large enough to
accommodate drainage from all drains.
• The ideal installation has a standpipe with a
1-1/2" (3.81 cm) to 2" (5.08 cm) PVC drain
reducer installed directly below the outlet of
thedraintube,asshown.Youmustmaintain
a1"(2.54cm)airgapbetweenthedrainhose
and the standpipe.
• It may be desirable to insulate the drain line
up to the drain inlet.
SIDE VIEW
1. Drain Hose
2. 1" (2.54 cm) Air Gap
3. PVC Drain Reducer
4. Center of drain should be 20" (50.8 cm) back on
15" models from front of door and 23" (58.4cm)
back on 18" models from front of door, with or
without the 3/4" (1.91 cm) panel on the door.
15" Models
18" Models

2-4
Drain Pump System (On Some Models)
Connect the ice maker drain to your drain in
accordance with the International Plumbing
Code and any local codes and ordinances.
NOTE: If the drain hose becomes twisted and
water cannot drain, the ice maker will not oper-
ate.
Connecting the Drain
After ensuring that the drain system is ad-
equate, follow these steps to properly place
the ice maker:
Electrical Shock Hazard
Plug into a grounded 3 prong outlet.
Do not remove ground prong.
Do not use an adapter.
Do not use an extension cord.
Failure to follow these instructions can
result in death, fire, or electrical shock.
WARNING
WARNING
1. Plug in ice maker or reconnect power.
WARNING
WARNING
Excessive Weight Hazard
Use two or more people to move and
install ice maker.
Failure to do so can result in back or
other injury.
2. Style 1 - For gravity drain system, push
the ice maker into position so that the ice
maker drain tube is positioned over the
PVC drain reducer. Style 2 - For drain
pump system connect the drain pump
outlet hose to the drain. See “Drain Pump
System” earlier in this section.
3. Recheck the ice maker to be sure that it
is level.
4. If it is required by your local sanitation
code, seal the cabinet to the floor with
an approved caulking compound after
all water and electrical connections have
been made.

3-1
THEORY OF OPERATION
OPERATING SYSTEMS
There are three operating systems in the ice
maker:
• Refrigeration System
• Water System
• Electrical System
REFRIGERATION SYSTEM
The refrigeration system in the ice maker is
very similar to the system used in other refrig-
erationappliances.Therefrigerantusedinthis
unit is R134a.
There are two very important additions to the
refrigeration system in the ice maker: the Hot
Gas Valve, and the Condenser Accumulator
Tube. The components operate as follows:
• Hot Gas Valve - Allows high pressure
refrigerantgastobypass the condenser
and flow through the condenser accu-
mulator tube.
• CondenserAccumulatorTube - Hotgas
pushes liquid refrigerant through the
accumulator tube into the evaporator,
helping to evenly heat the evapora-
tor plate so that the ice slab releases
quickly and evenly.

3-2
WATER SYSTEM
The water system provides:
• Fresh water for ice production
• Water recirculation as ice is produced
• Water removal after ice is produced
The water system circulates water to freeze
into ice on the evaporator during the freeze
cycle. During the harvest cycle, it drains away
minerals and contaminates. During the clean
cycle, cleaning solution is circulated to clean
the system of minerals and contaminates.
The hardness of the water supplied to the ice
maker will affect the quality of the ice that is
produced. It may also affect the operation of
the water system.
Awatersoftener,orpolyphosphatefeeder,will
notcurealloftheproblemsassociatedwithhard
water, but they can be used to reduce scale
buildup in the ice maker. NOTE: Some poly
phosphate feeders will cause a slime buildup
inthewatersystemwhenthewatersupplyhas
a low mineral content.
The ice maker’s water system is shown on
next page.

3-3
Water Distributor
Evaporator
Water Recirculation
Pump
Reservoir Pan
Water Level Sensor
Reservoir Drain Pump
Water Return Tube
Water Valve Outlet Tube
Measured Fill
Water Inlet Valve
From Water Supply
Bin Drain
Manual Drain
Drain Overflow
WATER SYSTEM COMPONENT LOCATIONS

3-4
ELECTRICAL SYSTEM
The ice maker’s electrical system provides power for the refrigeration and water systems, and
controls the operation of each component.

3-5
OPERATIONAL MODES
There are four main operational modes for the
ice maker (more detailed operation is found in
the flow chart on page 6-5):
• Freeze
• Harvest
• Clean
• Service (Diagnostics)
ICE MAKING CYCLE
Inaddition,therearethreepossible“Off”cycles
for the ice maker. They occur when:
1.The bin is full of ice and the LED is il-
luminated “ON/OFF” (Idle mode).
2.The "On/OFF” control switch has been
held for three seconds. The ON/OFF
LED will go out.
3. The Holiday Mode.
Electrical System
LineVoltageissuppliedtotheelectricalcontrol
switchesandtheprimarysideofthestep-down
dualtransformer.Thedualtransformerreduces
120 VAC to 8.75 VAC for the cutter grid and
thebinlightand 12 VAC for thedrainandrecir-
culating pumps. The electronic control board
directs 12 VAC to the water recirculating and
reservoir drain pumps, and 120 VAC to the
hot gas solenoid, condenser fan motor, and
compressor. The measured fill water valve will
alwayshave120VAContheBKandWHwires
and 14 VDC on the OR/WH and BK/RD wires.
Anevaporatorthermistorsuppliestemperature
informationtotheelectroniccontroltodetermine
when to terminate the harvest cycle.
Refrigeration System
Thehotgasrefrigerant,underhighpressure,is
forcedthroughthecondenser,whereitchanges
into a liquid, and flows through the drier and
capillary tube into the evaporator. Under low
pressureintheevaporator,theliquidrefrigerant
absorbs heat from the water flowing over the
evaporator as the refrigerant evaporates into
a gas. As a low pressure gas, the refrigerant
flows back through the suction line of the heat
exchanger, to the compressor.
During the Freeze mode, some of the hot gas
that is in the condenser accumulating tube,
condenses to a liquid, and remains in the ac-
cumulating tube.
Duringthelaterstagesofthe Freeze mode, as
the ice slab forms on the evaporator freezing
plate, some of the refrigerant passing through
theevaporatorwillnotevaporateintoagas,but
will remain a liquid. This liquid refrigerant will
settle in the accumulator, while the refrigerant
vapor is sucked off through the suction tube at
the top of the accumulator. This accumulated
liquid refrigerant will eventually be directed to
the evaporator to quickly warm the evaporator
plate during the Harvest mode.
NOTE:Itisveryimportantthattheaccumulator
isnottiltedoutofahorizontalposition.Ifmoved,
it could cause compressor failure.
Water System
Thewaterrecirculatingpumpmovesthewater
from the reservoir pan up to the distributor,
where it flows out over the evaporator freez-
ing plate.
Water that does not freeze on the evaporator
platerunsoffthe frontedge,andfallsback into
the reservoir, where it is recirculated back to
the water distributor.
Astheiceslabforms,themineralsinthewater
are on the surface of the ice. The water flow-
ing over the top of the ice slab washes these
mineralsbackintothewaterreservoirpan.The
water continues to recirculate until the water
levelin thereservoir drops tothe bottomof the
waterlevelsensor. Whenthewaterlevelinthe
reservoir drops below the sensor, the control
terminates the freeze mode and initiates the
harvest mode.
Thecontrolsignalsthemeasuredfillvalvetofill
to the selected water level setting. The mea-
sured fillvalveusesaflowmetertoaccuratelyfill
tothecorrectvolume. ThinIceuses32ounces
(954cc), Normal Ice 37 ounces (1106cc), and
Thick Ice 42.5 ounces (1258cc).

3-6
HARVEST MODE
Electrical System
When the water level in the reservoir drops
below the water level sensor it signals the
electronic control to terminate power to the
condenserfan,andthenthewaterrecirculating
pump. The reservoir drain pump is activated
to fully drain the reservoir. Power is then sup-
plied to the hot gas valve and a fill request is
sent to the measured fill valve. The fill valve
fills to the requested volume while the hot gas
valve is energized for the balance of the har-
vest mode.
If the evaporator thermistor is unplugged, the
evaporator defaults to a timed 4 minute har-
vest.
If the water level sensor is disconnected or
open, the control defaults to 25 minutes of
freeze time. The cleaning indicator LED fea-
ture will not function if the water level sensor
is disconnected.
Refrigeration System
The hot gas valve opens, allowing high pres-
sure refrigerant gas to bypass the condenser,
and flow through the condenser accumulating
tube. The hot gas pushes the liquid refrigerant
that has accumulated in the accumulator tube
upintotheevaporator.Thehotliquidrefrigerant
evenly heats the evaporator plate so that the
ice slab releases quickly and evenly.
The ice slab, when released, slides off of the
evaporator plate onto the cutter grid.
Water System
The electronic control board sends a signal to
thewatervalve.Thesignaltellsthewatervalve
how much water to be filled, allowing water to
flow into the water reservoir pan. The water
fill volume is determined by the ice thickness
setting.
Asaresultofthehotgasflowandtheicesliding
off the evaporator plate, the evaporator tem-
perature begins to rise. When the evaporator
thermistorreachesthesettemperature(52°F),
the unit switches to the Freeze mode. This cy-
cling between Freeze and Harvest, continues
until the ice bin is full.
Theelectroniccontrol board operates thevari-
ouscomponentsandsystemsintheicemaker
for each of the Freeze and Harvest modes.
CLEAN MODE
Electrical System
The electronic control board operates the
various components and systems during the
Clean mode.
For the order of the components cycled, see
the flow chart on page 6-13.
Water System
Whentheservicecontrolswitchisinthe“Clean”
position,thewaterrecirculatingpumpcirculates
thecleaningsolutionthathasbeenaddedtothe
reservoir,uptothewaterdistributor,acrossthe
evaporator, and back into the reservoir, where
it is recirculated. The compressor and hot gas
valve operate to heat the evaporator.
DIAGNOSTIC MODE
1. Donotcontinuewiththediagnosisoftheice
maker if a fuse is blown, a circuit breaker
istripped, or ifthereis less thana120 volt
power supply at the wall outlet.
2. Allunitsthathavefailedduringthefirstfew
days of use should be checked for loose
connections or miswiring.
Entering and Navigating — Manual
Diagnostics
• Turn the product on. Within 10 seconds of
Power On, press and hold the On and the
Clean buttons. Release both buttons when
all user interface LEDs begin to flash.
• Within 5 seconds of all LEDs flashing, push
any other button on the user interface. This
begins manual diagnostics.
• If no button is pressed within 5 seconds, the
product goes into the automatic diagnostic
mode used at the assembly plant. Each
component is cycled for 5 seconds.
• The Service button (or Off button on some
models) is used to advance through each
step.
• Toexitmanualdiagnostics,pressthe Power
button (or On button on some models)

3-7
ERROR DISPLAYS
These errors will occur at any time during normal operation if a thermistor fails.
2 Blinks — Service Light is blinking twice in repeating intervals – This signifies a bin thermistor
failure. Check that the bin thermistor is plugged in to the control box. Check that the bin thermis-
tor is not open or shorted. Replace the thermistor if it is open or shorted.
3 Blinks — Service Light is blinking three times in repeating intervals – This signifies a harvest
failure. Check that the evaporator thermistor is connected to the sealed system tubing. If the
thermistor is plugged in, ensure that it is fully connected to the control box. (The ice maker will
operate on a timed cycle if the evaporator thermistor is unplugged.) Check the resistance of the
thermistor. If the thermistor checks good, then look for a frost pattern on the evaporator plate.
The unit may be low on refrigerant.
HOLIDAY MODE
The Holiday Mode feature is designed for the traveler or for those whose religious observances
require turning off the lights and the ice maker. By selecting this feature, ice production and the
interior lights will be disabled. Press and hold the Holiday Mode button to turn on the Holiday
Mode feature. Press and hold the button again to turn off the feature.
The Holiday mode LED is lite constantly in this mode.
Order Component On/Off LED
(On for some
models)
Service LED
(Off for some
models)
Clean LED Feature Light (for
some models)
1 Entry into Test
Mode ON ON ON ON
2 Bin Thermistor ON Solid--OK
2 blinks--Open
4blinks--Short
OFF OFF OFF
3 Evaporator
Thermistor OFF OFF ON Solid--OK 2blinks--Open
4blinks--Short
OFF
4a Water Valve
4 min time out
Service button
press will advance
to step 6
OFF ON Solid--reservoir full
Blinking--reservoir
empty
ON OFF
4b Water Level
Sensor OFF ON Solid--reservoir full
Blinking--reservoir
empty
ON OFF
5 Recirculation
Pump ON ON ON OFF
6 Reservoir Drain
Pump ON OFF OFF OFF
7 Compressor and
Condenser Fan
Motor
ON Solid while cooling Blinking when evap
thermistor reaches
4.5ºF; full frost pattern
should be visible
ON OFF
8 Compressor and
Hot Gas Valve ON Solid while heating ON Solid while heating Blinking when evap
thermistor reaches 52ºF
ON Solid while heating OFF
9 Twice Ice OFF OFF ON Solid--No delay
Blinking--10 min delay
between cycles
Press Clean button to
cycle between settings
OFF
10 Ice Thickness OFF 2 Blinks--Thin
4 Blinks--Normal
6 Blinks--Thick
Press Clean button to
cycle between settings
OFF OFF
Diagnostic Chart
After pressing any button to enter manual diagnostics all LEDs will illuminate for 5 seconds. The
controls will then automatically move to the first component.

3-8
The power cord on the internal drain pump is
connected to a 120 VAC wall outlet. The ice
makeristhen connected to the120VAC outlet
on the drain pump. If the drain pump fails, or if
the drain becomes blocked, power is shut off
to the 120 VAC outlet on the drain pump.
When the unit is first plugged in, the drain
pump will run for 20 seconds. The power can
bedisconnectedandreconnectedtoverifythat
the pump is operating properly.
Water from the ice maker reservoir, or melting
icefromthebin,drainsdownthebindraintube
intothepumpinlet,andthenintothedrainpump
chamber.Asthewaterlevelrises,itbridgesthe
“full”contacts,andthepumpstarts torun.The
pump discharges the water through the outlet
andthecheckvalve.Whenthe“full”connection
isremoved,thepumprunsfor an additional 12
seconds to empty the tank.
If the water level in the drain pump continues
to rise, due to a slow or blocked drain, or a
blocked vent hose, and touches the “overfill”
contact, power will be turned off to the drain
pump’s 120 VAC outlet, causing the ice maker
to turn off.
MODELS WITH INTERNAL DRAIN PUMPS
Full Contacts
Overfill Contact
Pump Inlet
Contacts Sense Continuity
Through The Water
Screen
Washer
White
Black
Green
Pump Outlet &
Check Valve
Connector Hose
(Contains Screen Washer)
Vent Outlet