Table of Contents
Advertisement
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.
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
16023585
September 2004
Advertisement
Table of Contents
Related Manuals for Maytag MQU2057AEW
Summarization of Contents
Service Manual Introduction
Model Overview and Scope
Introduces the service manual for Amana and Maytag upright freezers and lists covered models.
Important Safety Disclaimer
Warns unqualified persons against performing service procedures.
Important Notices and Safety Guidelines
Servicer and Consumer Responsibilities
Outlines responsibilities regarding service procedures and qualified technicians.
Safety Symbols and Definitions
Explains the meaning of DANGER, WARNING, and CAUTION symbols used in the manual.
Customer Support Contact Information
Lists contact details for customer service centers and websites.
Model Identification System
Decoding Amana & Maytag Model Numbers
Explains the coding system for Amana and Maytag upright freezer model numbers.
Installation Procedures
Unpacking and Location Requirements
Guides on unpacking, placement, and clearance for optimal freezer operation.
Electrical Connection Safety
Details electrical supply requirements and precautions for connecting the freezer.
Final Installation Steps
Door Handle and Leveling
Instructions for installing the door handle and leveling the freezer unit.
Post-Installation Checks
Checks to perform after installation to ensure proper operation and appearance.
General Instructions and Support
Electrical Safety and Freezer Disposal
Emphasizes electrical grounding and safe disposal procedures for old freezers.
Model Data and Customer Service
Information on recording model details and contacting customer service.
Operating Your Freezer
Setting and Adjusting Temperature Control
Guides on setting the temperature control for optimal operation and precise temperature management.
Freezer Features and Food Storage
Door Lock and Reversible Rack
Instructions for operating the door lock and using the reversible rack.
Freezing Guidelines and Food Wrapping
Provides recommended storage times and tips for proper food wrapping.
Care and Cleaning Procedures
General Cleaning and Odor Removal
Instructions for cleaning interior surfaces and eliminating odors.
Door Gasket Maintenance
Guidance on cleaning door gaskets and applying petroleum jelly.
Defrosting and Lighting Maintenance
Manual Defrosting Process
Step-by-step guide for manually defrosting the freezer.
Replacing the Interior Light Bulb
Instructions and safety precautions for replacing the freezer's interior light bulb.
General Tips for Efficient Operation
Energy, Vacation, and Sound Tips
Advice on energy efficiency, vacation preparation, and understanding normal operating sounds.
Troubleshooting Before Calling Service
Lists common issues and initial checks before contacting a service technician.
Understanding Normal Operating Sounds
Identifying Freezer Sounds with Diagram
Details various sounds like compressor hum, fan whirring, and defrost heater sizzling with illustrations.
Refrigeration System Testing
General Refrigeration Test Procedures
Outlines temperature and pressure testing procedures for the refrigeration system.
Refrigerant Flow Diagrams
Illustrates refrigerant flow for manual and automatic defrost models.
Testing the Main Condenser
Main Condenser Leak Testing
Details the process for testing the main condenser for leaks using nitrogen.
Electrical System and Compressor Testing
Electrical System Safety and Compressor Tests
Covers electrical safety, compressor tests, and common failure points.
Compressor Component Testing
Testing Overload Protector and Capacitor
Steps to test the overload protector and compressor start capacitor.
Control System Component Testing
Testing PTC Relay, Light Switch, and Control
Procedures for testing PTC relay, interior light switch, and temperature control.
Temperature Control and Defrost Timer
Calibrating Temperature Control
Details how to test and calibrate the temperature control based on specific temperatures.
Defrost Timer Operation and Circuits
Explains the defrost timer's function and provides circuit diagrams.
Timer and Defrost System Tests
Checking Defrost Timer and Heater/Thermostat
Procedures to test the defrost timer, heater, and thermostat for proper function.
Freezer Fan Motor Testing
Testing Freezer Fan Motor Operation
Instructions for testing the freezer fan motor's operation and related wiring.
Performance Data Tables
Manual and Auto Defrost Performance Specs
Provides performance data for manual and auto defrost models at control setting #4.
Troubleshooting Common Issues
Frost Build-up and Compressor Problems
Addresses frost build-up, compressor not running, and noisy operation.
Troubleshooting Operational Problems
Temperature, Lighting, and Sweating Issues
Covers high temperature, no light, compressor not running, and exterior sweating.
Troubleshooting Performance Variations
Compressor Cycling and Defrost Water Issues
Addresses short cycling, freezing problems, and defrost water disposal.
Disassembly Procedures: Drier and Compressor
Replacing the Refrigerant Drier
Step-by-step guide for replacing the refrigerant drier.
Replacing the Compressor
Detailed instructions for removing and installing a replacement compressor.
Disassembly Procedures: Heat Exchanger
Replacing Heat Exchanger (Refrigerated Shelf Models)
Instructions for removing and replacing the heat exchanger in refrigerated shelf models.
Disassembly Procedures: Heat Exchanger (No-Defrost)
Replacing Heat Exchanger (No-Defrosting Models)
Guide for replacing the heat exchanger in no-defrosting freezer models.
Disassembly Procedures: Freezer Shelving
Replacing Freezer Shelving (Refrigerated Shelf Models)
Instructions for removing and replacing freezer shelves.
Disassembly Procedures: Freezer Coil (No-Defrost)
Replacing Freezer Coil (No-Defrosting Models)
Steps for removing and replacing the freezer coil in no-defrosting models.
Component Replacement Procedures
Replacing Light Switch, Control, and Heater
Instructions for replacing the light switch, temperature control, and defrost heater.
Disassembly: Heater and Fan Motor
Removing Defrost Heater and Fan Motor
Procedures for removing the defrost heater and freezer fan motor.
Cabinet Door Assembly Components
Exploded View of Door Assembly
Illustrates the various components of the freezer's cabinet door assembly.
Cabinet Door and Lock Assembly Procedures
Removing and Installing Cabinet Door
Steps for detaching and reattaching the freezer door assembly.
Door Handle and Lock Assembly Procedures
Instructions for removing and installing the door handle and lock mechanism.
Door Seal, Alignment, and Hinge Adjustments
Improving Gasket Seal and Door Alignment
Guidance on checking, improving the gasket seal, and aligning the door.
Hinge Adjustments for Door Alignment
Procedures for adjusting door hinges to correct alignment issues.
Cabinet Construction and Drain System
Cabinet Shell, Liner, and Drain System Details
Describes cabinet construction and the freezer's drain system for different models.
Service Information: System Operation Issues
Diagnosing System Operation and Component Failures
Discusses issues like failed compressor, restrictions, moisture, and incorrect charge.
Service Information: Operating Pressures
Checking and Interpreting Refrigeration Pressures
Guides on checking pressures and diagnosing system issues based on readings.
Service Information: Operational Checks
Operational Testing, Noise, and Insulation Voids
Covers operational testing, normal noises, and diagnosing insulation voids.
Service Information: Refrigeration Complaints
Common Refrigeration Complaints and Diagnosis
Lists common complaints like temperature, compressor start, and running time issues.
Service Information: Refrigerant Leaks
Identifying and Locating Refrigerant Leaks
Details symptoms and methods for finding both external and internal refrigerant leaks.
Service Information: HFC134a Handling
Evacuation, Charging, and HFC134a Precautions
Provides precautions for HFC134a systems and evacuation/charging procedures.
HFC134a Refrigerant and Safety
HFC134a Properties, Safety, and Handling
Covers HFC134a properties, safety, handling, and comparison with CFC12.
Service Equipment and Drier Replacement
HFC134a Service Equipment and Drier Replacement
Lists HFC134a service tools and the procedure for replacing the drier.
Compressor Replacement and Leak Testing
Replacing HFC134a Compressor and Leak Testing
Steps for compressor replacement, refrigerant charge, and leak testing.
Evacuation and Charging Procedures
Detailed Evacuation and Charging Steps with Diagram
Comprehensive guide on evacuating and charging the system with refrigerant, including a diagram.
System Dehydration and Brazing
Dehydrating Systems and Brazing Precautions
Explains system dehydration, brazing techniques, and refrigerant precautions.
Line Piercing Valves and Altitude Adjustment
Using Line Piercing Valves and Adjusting Temperature Control
Information on line piercing valves and adjusting the temperature control for altitude.
Cabinet Construction and Drain System
Cabinet Shell, Liner, and Drain System Details
Describes cabinet construction and the freezer's drain system for different models.
Wiring Diagrams and Schematics
Manual Defrost Model Wiring Diagram
Provides the wiring diagram for manual defrost models.
Wiring Diagrams and Schematics
Frost Free Model Schematic Diagram
Presents the schematic diagram for frost-free freezer models.
Need help?
Do you have a question about the MQU2057AEW and is the answer not in the manual?
Questions and answers