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KitchenAid KUIA18NNJ - User Manual

KitchenAid KUIA18NNJ
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TECHNICAL EDUCATION
JOB AID 4317339
KAR-14
15 & 18 AUTOMATIC
ICE MAKERS
KUIS155H,
KUIA15NRH, KUIA15NLH,
KUIA15RRL, KUIA15PLL,
KUIS15NRH, KUIS15PRH
KUIS185J,
KUIA18NNJ, KUIA18PNL,
KUIS18NNJ, KUIS18PNJ,
KUIV18NNM

Table of Contents

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Summary

General Information and Safety

Safety First

Importance of safety messages, symbols, and precautions.

Electrical Power Supply & Grounding Requirements

Requirements for safe electrical connection and proper grounding.

Electrostatic Discharge (ESD) Sensitive Electronics

Handling precautions for ESD sensitive electronic components to prevent damage.

Model & Serial Number Label Location

Location of the model and serial number label on the appliance.

KitchenAid Model & Serial Number Designations

Models Prior To 2003

Designation breakdown for models manufactured before 2003.

Models Starting With 2003

Designation breakdown for models manufactured from 2003 onwards.

Specifications

KitchenAid Ice Maker Warranty

Installation Information

Electrical Supply Requirements

Specifies the required electrical supply and grounding for safe operation.

Connecting the Water Line

Step-by-step instructions for connecting the water supply line to the ice maker.

Connecting the Drain

Guidelines for installing the gravity drain system for the ice maker.

Drain Pump System

Instructions for connecting the drain pump system if applicable.

Theory of Operation

Operating Systems

Overview of the refrigeration, water, and electrical systems.

Water System

Details the water supply, recirculation, and flushing mechanisms.

Electrical System

Explains the electrical power, control, and cycling of the ice maker.

Operational Cycles

Ice Making Cycle

Describes the process of making ice, including conditions and off cycles.

Harvest Cycle

Explains the cycle where ice is released and collected.

Diagnostics; Clean Cycle

Details the diagnostic and cleaning modes for the ice maker.

New Ice Maker Control Board (#6100499)

Models with Internal Drain Pumps

Component Access

Component Locations

Illustrates the location of various components within the ice maker.

Removing the Electronic Control Housing Components

Instructions for accessing and removing components from the control housing.

Removing the Water Recirculation Pump

Detailed steps for removing the water recirculation pump.

Removing the Condenser Fan Motor

Procedure for safely removing the condenser fan motor.

Removing the Evaporator

Step-by-step instructions for removing the evaporator unit.

Removing the Water Inlet Valve

Instructions for disconnecting and removing the water inlet valve.

Removing the Hot Gas Valve & Solenoid

Guide for removing the hot gas valve and its solenoid.

Removing the Condenser

Steps to safely remove the condenser unit.

Removing the Compressor

Procedure for removing the compressor and its associated parts.

Removing the Internal Drain Pump

Instructions for removing the internal drain pump from specific models.

Removing the Ice Maker Door & Gasket (15 Models)

Steps for removing the door and gasket on 15-inch models.

Removing the Ice Maker Door & Gasket (18 Models)

Instructions for removing the door and gasket on 18-inch models.

Component Testing

Bin Thermistor

Procedure and resistance values for testing the bin thermistor.

Evaporator Thermistor

Procedure and resistance values for testing the evaporator thermistor.

Cutter Grid

Steps and resistance values for testing the cutter grid.

Cutter Grid Transformer

Procedure and resistance values for testing the cutter grid transformer.

Water Recirculation Pump

Procedure and resistance values for testing the water recirculation pump.

Condenser Fan Motor

Procedure and resistance values for testing the condenser fan motor.

Water Inlet Valve Solenoid

Procedure and resistance values for testing the water inlet valve solenoid.

Hot Gas Valve Solenoid

Procedure and resistance values for testing the hot gas valve solenoid.

Compressor, Overload Protector, & Relay

Procedure for testing compressor windings and related components.

Pushbutton Switch Assembly

Procedure and readings for testing the pushbutton switch assembly.

Diagnosis & Troubleshooting

Water and Its Effect on Making Ice

Explains how water quality impacts ice production and appearance.

Troubleshooting Chart

A table listing common problems, causes, and test actions.

Diagnostic Flow Chart for Ice Maker Control Board #6100499

A visual guide to diagnosing issues using the control board.

Wiring Diagram & Strip Circuits

Wiring Diagram

Schematic showing electrical connections and components.

Strip Circuits - Operational Modes

Simplified circuit diagrams for ice making and harvest modes.

Strip Circuits - Diagnostics;Clean Modes

Simplified circuit diagrams for diagnostic/clean modes.

Tech Tips

Cleaning the Ice Maker

Recommendations and procedures for cleaning the ice maker.

Adjusting the Ice Thickness

How to adjust ice thickness using control board jumpers.

Product Specifications and Warranty Information Sources

KitchenAid KUIA18NNJ Specifications

General IconGeneral
Power115V
FinishStainless Steel
Control TypeElectronic
Refrigerant TypeR134a
ENERGY STAR QualifiedNo
Frequency60 Hz
ColorStainless Steel
Width18 inches
Storage Capacity25 lb
Ice Cube TypeClear

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