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Maytag AFU2005BW User Manual

Maytag AFU2005BW
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Upright
Freezers
This Base Manual covers general information
Refer to individual Technical Sheet
for information on specific models
This manual includes, but is
not limited to the following:
Amana
AFU1202BW
AFU1505BW
AFU1567BW
AFU1705BW
AFU1767BW
AFU2005BW
AFU2067BW
AQU1525AEW
Maytag
MQU1554AEW
MQU1556AEW
MQU2056ARW
MQU2057AEW
Service
This manual is to be used by qualified appliance
technicians only. Maytag does not assume any
responsibility for property damage or personal
injury for improper service procedures done by
an unqualified person.
16023585
September 2004

Table of Contents

Questions and Answers:

Maytag AFU2005BW Specifications

General IconGeneral
BrandMaytag
ModelAFU2005BW
TypeUpright Freezer
ColorWhite
Defrost TypeFrost-free
Energy Star CertifiedYes
Installation TypeFreestanding
Shelving TypeWire
Reversible DoorYes
Temperature AlarmYes
LockYes
Capacity20.5 cu. ft.

Summary

Service

Upright Freezers

Overview of upright freezer models covered in the service manual.

Important Information

Important Notices for Servicers and Consumers

Key safety and procedural information for service technicians and consumers.

Customer Service Support Center

Contact details for customer support and warranty information.

Recognize Safety Symbols, Words, and Labels

Explanation of safety symbols and terms used in the manual.

Model Identification

Amana & Maytag Model Identification

Explanation of coding used in model numbers for Amana and Maytag freezers.

Installation Instructions

Unpacking

Procedure for removing protective packaging and preparing the freezer for use.

General

General guidelines for handling and preparing the freezer for installation.

Location

Recommendations for optimal placement of the freezer for efficiency and to avoid service calls.

Electrical Connection

Guidelines for safely connecting the freezer to a power source.

Installation Instructions

Door Handle

Instructions for installing or attaching the freezer door handle.

Leveling

Procedure for leveling the freezer to ensure proper operation and door seal.

Test After Installation

Checks to perform after the freezer has been installed to ensure it is functioning correctly.

General Instructions

Electrical Requirements

Specifications and safety requirements for connecting the freezer to electrical power.

Model Identification

Guidance on locating and recording model and serial number information.

Proper Disposal of your Freezer

Safety instructions for disposing of an old freezer to prevent accidents.

Operating Instructions

Setting Controls

How to set the temperature control for optimal freezer operation.

Temperature Control

Detailed explanation of the temperature control dial and its settings.

Operating Instructions

Door Lock

Instructions for using the freezer's door lock mechanism and safety warnings.

Reversible Rack (some models)

Information on how to use and position reversible racks for storage.

Freezing Guide

Guidelines for proper wrapping and storage times for various foods.

Care and Cleaning

General

Basic instructions for cleaning the freezer interior and exterior surfaces.

Adhesives

Method for removing adhesive residue from surfaces.

Door Gaskets

Procedure for cleaning and maintaining freezer door gaskets.

Odor Removal

Steps to eliminate odors from the freezer interior.

Care and Cleaning

Defrosting

Instructions for manually defrosting the freezer and cleaning after defrosting.

Light Bulb (some models)

Procedure for replacing the interior light bulb in the freezer.

General Tips

Energy Tips

Advice on operating the freezer efficiently to save energy.

Vacation Tips

Recommendations for preparing the freezer for extended periods of non-use.

Normal Operating Sounds

Description of typical sounds the freezer may make during operation.

Before Calling For Service

Troubleshooting steps to take before contacting service personnel.

General Tips

Operating Sounds

Detailed explanation and illustration of normal operating sounds from freezer components.

Component Testing

Refrigeration System Test Procedures

Methodology for testing the refrigeration system using temperature and pressure measurements.

Component Testing

Testing Main Condenser

Procedure for testing the main condenser for leaks using nitrogen.

Component Testing

Testing for Leaks

Safety warnings and procedures for testing refrigeration systems for leaks.

Electrical System

Safety precautions and checks for the freezer's electrical system.

Compressor Electrical Tests

Electrical tests to perform on the compressor to diagnose issues.

Testing Compressor Direct

Method for directly testing the compressor's functionality.

Component Testing

Overload Protector

Description and function of the compressor overload protector.

Testing Overload Protector

Procedure for testing the continuity of the overload protector.

Capacitor

Method for testing the compressor start capacitor using an ohmmeter.

Component Testing

PTC Relay

Explanation of the PTC relay and its function in the compressor circuit.

Testing PTC Relay

Procedure for testing the PTC relay for continuity.

Interior Light and Switch

Troubleshooting and replacement of the interior light and its switch.

Checking Control Operation

How to check the operation of the temperature control and diagnose failures.

Component Testing

Temperature Control

Testing temperature control cut-in and cut-out temperatures.

Defrost Timer

Explanation of the defrost timer's function and cycle.

Component Testing

Checking Timer

Procedure for testing the defrost timer for proper continuity and function.

Defrost Heater and Thermostat

Testing the defrost heater and thermostat in no-defrosting models.

Component Testing

Freezer Fan No-Defrosting Models

Description of the freezer fan's location and function in no-defrosting models.

Testing Freezer Fan Motor

Procedure for testing the freezer fan motor for proper operation.

Troubleshooting

Frost build-up on freezer coil

Diagnosing and correcting frost build-up issues on the freezer coil.

Compressor does not run

Troubleshooting steps when the compressor fails to start or operate.

Excessively noisy but works

Identifying and resolving causes of excessive noise during freezer operation.

Troubleshooting

Compressor runs but freezer temperature is higher than necessary

Diagnosing why the compressor runs but the freezer is not cold enough.

Compressor does not run and no light

Troubleshooting combined issues of compressor failure and no interior light.

Sweating but freezer is working normally otherwise

Addressing condensation issues on the freezer exterior.

Troubleshooting

Compressor runs, but short cycles

Diagnosing and correcting short cycling behavior of the compressor.

Compressor runs but does not freeze

Troubleshooting compressor operation issues that prevent freezing.

Compressor runs excessively Freezer too cold

Addressing instances where the freezer becomes excessively cold.

Defrost water disposal problem

Resolving issues related to defrost water drainage.

Disassembly Procedures

Replacing Drier

Step-by-step instructions for replacing the refrigerant drier.

Replacing Compressor

Procedure for removing and installing a replacement compressor.

Disassembly Procedures

Replacing Heat Exchanger Refrigerated Shelf Models

Instructions for replacing the heat exchanger in refrigerated shelf models.

Disassembly Procedures

Replacing Heat Exchanger No-Defrosting Models

Instructions for replacing the heat exchanger in no-defrosting models.

Disassembly Procedures

Replacing Freezer Shelving Refrigerated Shelf Models

Procedure for removing and replacing freezer shelves in refrigerated shelf models.

Disassembly Procedures

Replacing Freezer Coil No-Defrosting Models

Instructions for removing and replacing the freezer coil in no-defrosting models.

Disassembly Procedures

Replacing Light Switch

Procedure for replacing the interior light switch.

Replacing Control

Steps for removing and replacing the temperature control unit.

Replacing Heater

Instructions for replacing the defrost heater component.

Disassembly Procedures

Defrost Heater and Retaining Clips

Procedure for removing the defrost heater and its retaining clips.

Replacing Freezer Fan Motor

Steps for removing and replacing the freezer fan motor.

Disassembly Procedures

Cabinet Door Assembly

Diagram and overview of the components of the freezer door assembly.

Disassembly Procedures

Removing Cabinet Door Assembly

Instructions for removing the entire freezer cabinet door assembly.

Install Cabinet Door Assembly

Procedure for reinstalling the freezer cabinet door assembly.

Install Door Liner And Gasket

Steps for installing the inner door liner and gasket.

Removing Inner Liner and Gasket

Procedure for removing the inner door liner and gasket.

Installing Inner Liner and Gasket

Steps to properly install the inner door liner and gasket.

Door Handle

Instructions for removing and installing the freezer door handle.

Door Lock Assembly

Procedure for removing and installing the door lock assembly.

Disassembly Procedures

Removing Door Lock Assembly

Detailed steps for removing the door lock assembly from the door panel.

Cabinet Door Alignment

Criteria and methods for aligning the freezer cabinet door correctly.

Checking Gasket Seal

Methods to check the effectiveness of the door gasket seal.

Improving Gasket Seal

Techniques to improve the door gasket seal for better efficiency.

Hinge Adjustments

Adjustments to hinges to correct door alignment and sealing issues.

Disassembly Procedures

Cabinet Assembly

Diagrams illustrating the components of the freezer cabinet assembly.

Service Information

System Operation

Overview of normal system operation and potential issues.

Failed Compressor

Causes and symptoms of compressor failure and diagnosis.

Incorrect Refrigerant Charge

Diagnosing and resolving issues related to incorrect refrigerant levels.

Partial Restriction in Low Side Tubing

Identifying and addressing restrictions in the low side refrigerant tubing.

Pressure Unloading in System

Explanation of pressure unloading phenomena in the refrigeration system.

Full Down Over Load

Understanding 'full down overload' conditions affecting the compressor.

Service Information

Checking Operating Pressures

Procedure for checking refrigeration system pressures and interpreting readings.

Service Information

Operational Testing

Steps for performing comprehensive operational checks on the freezer.

Service Hints

Tips and advice for servicing the freezer, including owner's manual usage.

Usage

Common usage patterns that may lead to service calls.

Compressor 'On' And 'Off' Periods

Information on normal compressor cycle times and variations.

Noise

Description of normal operating noises and unusual sounds.

Voids In Urethane Foam Insulation

Diagnosing and addressing issues related to foam insulation voids.

Service Information

Refrigeration System Complaints

Common refrigeration system issues and diagnostic steps.

Service Information

Refrigerant Leaks

Safety precautions and methods for detecting refrigerant leaks.

Finding Internal Leak

Procedure for pressure testing to locate internal refrigerant leaks.

Condenser Leak (Internal)

Identifying and handling internal leaks within the condenser.

Evaporator Leak (Internal)

Identifying and handling internal leaks within the evaporator.

Service Information

Evacuation and Charging Procedures

Detailed procedures for evacuating and charging HFC134a refrigeration systems.

Service Information

HFC134a Service Information

Information specific to HFC134a refrigerant and its properties.

Health, Safety, and Handling

Health, safety, and handling considerations for HFC134a refrigerant.

Service Information

Service Equipment

List of tools and equipment required for servicing HFC134a systems.

Drier Replacement

Procedure for replacing the drier filter in HFC134a systems.

Service Information

Replacement HFC134a Service Compressor

Instructions for replacing the HFC134a service compressor.

Refrigerant Charge

Information on correct refrigerant charge amounts for proper performance.

Leak Testing

Methods for testing the sealed system for leaks after repairs.

Evacuation and Charging

Safety warnings and procedures for evacuation and charging.

Service Information

Evacuation and Charging Typical Setup

Diagram and explanation of the typical setup for system evacuation and charging.

Service Information

Dehydrating Sealed Refrigeration System

Procedure for dehydrating the sealed refrigeration system to prevent acid formation.

Brazing

Precautions and materials required for brazing refrigeration system connections.

Refrigerant Precautions

Safety warnings and precautions for handling refrigerants.

Open Lines

Guidelines for preventing contamination when lines are open to the atmosphere.

Service Information

Line Piercing Valves

Use and limitations of line piercing valves for diagnosis.

Altitude Adjustment

Procedure for adjusting the temperature control for altitude variance.

Service Information

Cabinet Shell

Description of the freezer's outer cabinet construction and features.

Cabinet Liner (Food)

Description of the freezer's inner cabinet liner and attached components.

Drain System

Explanation of the freezer's drain system for defrost water.

Wiring Diagram and Schematic

Manual Defrost Models

Wiring diagram and schematic for manual defrost freezer models.

Wiring Diagram and Schematic

Frost Free Models

Wiring diagram and schematic for frost-free freezer models.

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