KitchenAid KUIA15NLH - Manual

1-2 Electrical Shock Hazard Connect green ground wire to groundscrew. Failure to do so can result in death orelectrical shock. WARNING IMPORTANT Electrostatic Discharge (ESD) Sensitive Electronics ESD problems are present everywhere.ESD may damage or weaken the elec-tronic control assembly. The new ...

1-3 KITCHENAID MODEL & SERIAL NUMBER DESIGNATIONS MODELS PRIOR TO 2003 MODEL NUMBER SERIAL NUMBER MODEL NUMBER K UI S 1 5 5 H LS 0 INTERNATIONAL SALES IND. OR MARKETING CHANNEL IF PRESENT PRODUCT GROUP K = KITCHENAID PRODUCT IDENTIFICATION UI = UNDERCOUNTER ICE MAKER MERCHANDISING SCHEME A = ARC...

1-5 MODEL & SERIAL NUMBER LABEL LOCATION The Model/Serial Number label location is shown below. Model & SerialNumber Location

1-6 AC Power Supply ........................................................... 97 to 127 VAC (rated 115VAC), 60 HzAmperage .......................................................................................................... 3.6 Amps (max)Minimum Circuit Capacity .................................

2-1 Before you move the ice maker into its finallocation, it is important to make sure you havethe proper electrical connection: 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 ...

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 waterpipe. b) Add an extra 36 ″ (91.4 cm) to ensure that you have the proper length. Makesure both ends of the coppe...

2-3 11. Thread the nut onto the coupling at the end of the copper tubing. Tighten the nutby hand. Then tighten it with a wrench twomore turns. Do not overtighten. 1. Line to ice maker 3. Ferrule (purchased) 2. Nut (purchased) 4. Coupling (purchased) 12. Remove the four screws from the lower access p...

3-1 THEORY OF OPERATION OPERATING SYSTEMS There are three operating systems in the icemaker: • Refrigeration System• Water System• Electrical System REFRIGERATION SYSTEM The refrigeration system in the ice maker isvery similar to the system used in other refrig-eration appliances. The refrigerant us...

3-2 WATER SYSTEM The water system provides: • Fresh water for ice production• Water recirculation as ice is produced The water system also flushes away mineralsand contaminates, circulates cleaning solutionduring the clean cycle, and provides drainage. The hardness of the water supplied to the icema...

3-3 ELECTRICAL SYSTEM The ice maker’s electrical system providespower for the refrigeration and water systems,and controls the operational cycling.

3-4 OPERATIONAL CYCLES There are three main operational cycles for theice maker (more detailed operation is found inthe flow chart on page 6-5): • Ice Making• Harvest• Diagnostics/Clean ICE MAKING CYCLE In addition, there are two possible “Off” cyclesfor the ice maker. They occur when: 1. The bin is...

3-5 HARVEST CYCLE Electrical System When the set temperature of the evaporatorthermistor is reached, it signals the electroniccontrol to terminate power to the condenserfan, and the water recirculating pump. Power isthen supplied to the hot gas valve and water fillvalve solenoids. If the evaporator ...

3-7 The power cord on the internal drain pump isconnected to a 120 VAC wall outlet. The icemaker is then connected to the 120 VAC outleton the drain pump. If the drain pump fails, or ifthe drain becomes blocked, power is shut off tothe 120 VAC outlet on the drain pump. When the unit is first plugged...

4-1 COMPONENT LOCATIONS This section instructs you on how to service each component inside the KitchenAid Automatic IceMaker. The components and their locations are shown below. COMPONENT ACCESS Pushbutton SwitchAssembly Electronic Control Board Light Switch Cutter Grid Cutter Grid Transformer Evapo...

4-2 REMOVING THE BIN THERMISTOR, CUTTER GRID, EVAPORATOR THERMISTOR, & WATER DISTRIBUTOR Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels beforeoperating. Failure to do so can result in death orelectrical shock. WARNING 1. Unplug ice maker or disconnect pow...

4-3 8. To remove the evaporator thermistor: a) Remove the cutter grid from the unit (see step 7 on page 4-2 for the proce-dure). b) Disconnect the evaporator thermistor connector from the bottom of the con-trol housing. c) Remove the two hex-head mounting screws from the water trough and pullthe tro...

4-4 9. To remove the water distributor: a) Remove the cutter grid from the unit (see step 7 on page 4-2 for the proce-dure). b) Pull out on the left and right water dis- tributor retainers, and remove the tabsfrom the slots in the evaporator. Pull thedistributor forward and remove the waterhose. Wat...

4-5 REMOVING THE ELECTRONIC CONTROL HOUSING COMPONENTS Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels beforeoperating. Failure to do so can result in death orelectrical shock. WARNING 1. Unplug ice maker or disconnect power. 2. Open the ice maker door. 3. Cov...

4-6 Electrical Shock Hazard Connect green ground wire to groundterminal. Failure to do so can result in death orelectrical shock. WARNING 8. To remove the cutter grid transformer: a) Disconnect the white & yellow wires from the primary terminals, and theblack/white wires from the secondarytermin...

4-7 Thumbscrew Thumbscrew Water Reservoir Screw Water Recirculation Pump Shield Drain Cap Spacer Bracket (Left Side) 18 ″ Models REMOVING THE WATER RECIRCULATION PUMP Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels beforeoperating. Failure to do so can result ...

4-8 REMOVING THE CONDENSER FAN MOTOR Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels beforeoperating. Failure to do so can result in death orelectrical shock. WARNING 1. Unplug ice maker or disconnect power. 2. Open the ice maker door. 3. Remove the ice from t...

4-11 REMOVING THE EVAPORATOR Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels beforeoperating. Failure to do so can result in death orelectrical shock. WARNING 1. Unplug ice maker or disconnect power. 2. Open the ice maker door. 3. Remove the ice from the stora...

4-15 REMOVING THE WATER INLET VALVE Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels beforeoperating. Failure to do so can result in death orelectrical shock. WARNING 1. Unplug ice maker or disconnect power. 2. Open the ice maker door. 3. Disconnect the water a...

4-16 REMOVING THE HOT GAS VALVE & SOLENOID Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels beforeoperating. Failure to do so can result in death orelectrical shock. WARNING 1. Unplug ice maker or disconnect power. 2. Tip the front of the cabinet back and p...

4-17 REMOVING THE CONDENSER Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels beforeoperating. Failure to do so can result in death orelectrical shock. WARNING 1. Unplug ice maker or disconnect power. 2. Tip the front of the cabinet back and propit up (see steps...

4-18 REMOVING THE COMPRESSOR Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels beforeoperating. Failure to do so can result in death orelectrical shock. WARNING 1. Unplug ice maker or disconnect power. 2. Open the ice maker door. 3. Remove the ice from the stora...

4-20 REMOVING THE INTERNAL DRAIN PUMP (ONLY ON SOME MODELS) Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels beforeoperating. Failure to do so can result in death orelectrical shock. WARNING 1. Unplug ice maker or disconnect power. 2. Remove the ice from the st...

4-21 REMOVING THE ICE MAKER DOOR & GASKET (15 ″ MODELS) 2. To remove the door gasket: a) Open the ice maker door.b) Pull the gasket out of the door track. NOTE: Be sure to check the new gas-ket for a proper seal after you install it. Top Door Screw 1. To remove the door, remove the top door scre...

5-1 COMPONENT TESTING Before testing any of the components, performthe following checks: • Control failure can be the result of corrosion on connectors. Therefore, disconnecting andreconnecting wires will be necessary through-out test procedures. • All tests/checks should be made with a VOM or DVM h...

5-2 WARNING Electrical Shock Hazard Disconnect power before servicing.Replace all parts and panels before operating.Failure to do so can result in death or electrical shock. CUTTER GRID Refer to page 4-2 for the procedure for servic-ing the cutter grid. 1. Unplug ice maker or disconnect power. 2. Se...

5-3 WATER RECIRCULATION PUMP Refer to page 4-7 for the procedure for servic-ing the water recirculation pump. 1. Unplug ice maker or disconnect power. 2. Set the ohmmeter to the R x 100 scale. 3. Touch the ohmmeter test leads to theoutside water recirculation pump wire con-nector pins. The meter sho...

5-4 WARNING Electrical Shock Hazard Disconnect power before servicing.Replace all parts and panels before operating.Failure to do so can result in death or electrical shock. HOT GAS VALVE SOLENOID Refer to page 4-16 for the procedure for servic-ing the hot gas valve solenoid. 1. Unplug ice maker or ...

5-7 WARNING Electrical Shock Hazard Disconnect power before servicing.Replace all parts and panels before operating.Failure to do so can result in death or electrical shock. PUSHBUTTON SWITCH ASSEMBLY Refer to page 4-5 for the procedure for servic-ing the pushbutton switch assembly. 1. Unplug ice ma...

6-1 DIAGNOSIS & TROUBLESHOOTING WATER AND ITS EFFECT ON MAKING ICE Quality ice is defined as solid, clear, and free oftaste or odor. All ice makers can provide thistype of ice only if the water used to produce the ice is pure, and free of mineral contamination.The following charts show some of t...

6-2 TROUBLESHOOTING CHART Problem Probable Cause Test Procedure-Action No power at wall outlet Check circuit breaker/fuses No power at drain pump power outlet Check for kinked drain hose, blocked screen or blocked vent outlet or hose. Open selector switch Check for continuity from terminals 1 - 2 on...

6-5 DIAGNOSTIC FLOW CHART FOR ICE MAKER CONTROL BOARD #6100499 Freeze Mode begins (See page 6-8) Service Mode begins (See page 6-11) Harvest Mode begins (See page 6-9) Idle Mode begins (See page 6-7) Flush Mode begins (See page 6-6) When t i me, o r t emp er at u r e i s sat i s f i ed g o thi s d i...

6-10 Failure Mode: This mode will last indefinitely until the failure is corrected. Control checks bin thermistor The “ Cleaning ” LED flashes off/on indefinitely in 1/2 second intervals The “ Cleaning ” LED flashes off/on indefinitely in 1 second intervals NOTE: If the LED is flashing in 1/2 second...

7-1 WIRING DIAGRAM & STRIP CIRCUITS WIRING DIAGRAM

7-2 STRIP CIRCUITS ICE MAKING MODE HARVEST MODE ON/OFF/CLEAN SWITCH ELECTRONIC CONTROL WATER RECIRCULATING PUMP CONDENSER FAN OVERLOAD COMPRESSOR RELAY Y Y BU OR R BU W W W BK NOTE: If the unit is run through the Ice Making mode with no water running across the evaporatorplate, a complete frost patt...

8-1 TECH TIPS CLEANING THE ICE MAKER Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels beforeoperating. Failure to do so can result in death orelectrical shock. WARNING NOTES: • KitchenAid recommends cleaning the ice maker at least once a year. More frequentclea...

8-3 ADJUSTING THE ICE THICKNESS Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels beforeoperating. Failure to do so can result in death orelectrical shock. WARNING Control board #6100499 with Code Date MGR/ 0245 (45th week, 2002), or higher, will allow icethickn...