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Amana AB1924PEK Series User Manual

Amana AB1924PEK Series
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International
Bottom Mount
Refrigerators
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
AB1924PEK*
AB2026PEK*
AB2225PEK*
AB2226PEK*
AB2526PEK*
G32026PEK*
G32526PEK*
GB1924PEK*
GB2225PEK*
GB2526PEK*
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.
16023324
July 2004

Table of Contents

Questions and Answers:

Amana AB1924PEK Series Specifications

General IconGeneral
BrandAmana
CategoryRefrigerator
ModelAB1924PEK
TypeTop Freezer
ColorWhite
ShelvesAdjustable Glass

Summary

Important Information

Important Notices for Servicers and Consumers

Guidelines for safe and proper appliance servicing and consumer interaction.

Customer Service Support Center

Contact information for customer support and assistance.

Recognize Safety Symbols, Words, and Labels

Explanation of safety symbols, warning words, and hazard labels.

Product Design

Refrigeration System

Details the process of cooling using refrigerant, compressor, condenser, and evaporator.

Temperature Controls

Explains how freezer and fresh food compartment temperatures are regulated.

Defrost System

Describes the mid-level electronic defrost system and its operation.

Component Testing

Compressor

Procedures for testing compressor resistance, ground, and operation.

Capacitor

Instructions for testing capacitor resistance, including good, open, shorted, and high resistance states.

Condenser

Information on condenser function and leak detection methods.

Overload / Relay

Testing procedures for overload and relay components in the compressor circuit.

Control board

References section for control board troubleshooting information.

Ice maker

Optional component; references section for service information.

Evaporator fan motor

Tests for evaporator fan motor resistance and voltage.

Electric damper control

Procedure to check resistance of the electric damper control.

Switch, refrigerator light

Testing procedure for refrigerator light single pole, single throw switch.

Switch, freezer light

Testing procedure for freezer light double throw switch.

Switch, water dispenser

Testing procedure for water dispenser single pole, single throw switch.

Drier

Guidance on drier replacement and handling, noting R12 vs R134a compatibility.

Evaporator

Procedure for testing evaporator for leaks and refrigerant expansion.

Evaporator heater (defrost)

Tests for evaporator heater continuity and defrost system operation.

Thermostat (defrost)

Testing defrost thermostat continuity and operation in the defrost circuit.

Thermistor

Instructions to check thermistor resistance across leads at different temperatures.

Condenser motor

Check resistance across coil for condenser fan motor.

ECM condenser motor

Check resistance across coil for ECM condenser motor.

Service Procedures

Service Equipment

Lists essential equipment required for servicing HFC134a refrigeration systems.

Drier Replacement

Step-by-step instructions for replacing the drier filter in HFC134a systems.

Refrigerant Precautions

Warnings and cautions regarding safe handling of refrigerants.

Line Piercing Valves

Information on the use and limitations of line piercing valves.

Open Lines

Precautions to prevent moisture ingress when refrigeration lines are open.

Compressor Operational Test

Procedure for performing an operational test on the compressor.

Dehydrating Sealed Refrigeration System

Explains the importance of removing moisture and its chemical reactions in the system.

Leak Testing

Procedures for leak testing systems with or without a refrigerant charge.

Testing Systems Containing a Refrigerant Charge

Methods for detecting leaks in systems with existing refrigerant.

Testing Systems Containing No Refrigerant Charge

Procedure for leak testing systems after refrigerant has been removed.

Restrictions

Discusses symptoms and causes of restrictions in the sealed system.

Testing for Restrictions

Steps to identify and diagnose restrictions within the refrigeration system.

Evacuation and Charging

Overview of evacuation and charging procedures for refrigeration systems.

Evacuation

Detailed steps for evacuating a sealed refrigeration system to remove air and moisture.

Charging

Instructions for charging the refrigeration system with the correct amount of refrigerant.

Refrigerant Charge

Emphasizes the critical nature of exact refrigerant charge for system performance.

HFC134a Service Information

Details on HFC134a refrigerant, its properties, and differences from CFC12.

Health, Safety, and Handling

Covers health, safety, and handling considerations for HFC134a.

Spill management

Procedures for managing spills of refrigerants.

Disposal procedures

Guidance on proper disposal of refrigerants and related materials.

Comparison of CFC12 and HFC134a Properties

Table comparing properties like ODP, GWP, and boiling points.

Replacement Service Compressor

Instructions for installing a replacement service compressor.

Compressor Testing Procedures

Methods for testing compressor operation, including temperature and wattage.

Brazing

Guidelines and materials for brazing refrigeration system connections.

Refrigerant Flow

Bottom Mount Refrigerant Flow Diagram

Diagram illustrating the flow path of refrigerant through the system.

Cabinet Air Flow

Bottom Mount Cabinet Air Flow Diagram

Diagram showing air circulation within the refrigerator and freezer compartments.

Machine Compartment Air Flow

Two Way Bottom Mount Machine Compartment Air Flow Diagram

Diagram illustrating two-way airflow in the machine compartment.

Machine Compartment Air Flow

One Way Bottom Mount Machine Compartment Air Flow Diagram

Diagram illustrating one-way airflow in the machine compartment.

Typical External Sweat Pattern

CLASSIFICATION OF CONDENSATION

Defines classifications for condensation patterns observed on the unit exterior.

Troubleshooting Chart

Unit does not run

Lists possible causes and corrective actions for a unit that does not operate.

Refrigerator section too warm

Identifies causes and fixes for a refrigerator compartment that is too warm.

Refrigerator section too cold

Possible causes and remedies for a refrigerator section that is too cold.

Freezer and refrigerator sections too warm

Troubleshooting steps for both compartments being too warm.

Freezer section too cold

Causes and solutions for a freezer section that is too cold.

Unit runs continuously

Addresses issues where the unit runs constantly without cycling.

Frost or ice on evaporator

Diagnoses causes of frost or ice buildup on the evaporator.

Unit starts and stops frequently (cycles on and off)

Troubleshooting for units that cycle on and off erratically.

System Diagnosis

Refrigerant Overcharge

Symptoms and indicators of too much refrigerant in the system.

Shortage of Refrigerant

Symptoms and indicators of insufficient refrigerant in the system.

Partial Restriction

Symptoms and diagnosis of a partial blockage in the refrigerant system.

Air in System

Indicators of air contamination within the sealed refrigeration system.

Low Ambient Installations

Effects of low ambient temperatures on system performance.

Additional Heat Load

Impact of increased heat load on system operation and pressures.

Inefficient Compressor

Symptoms and diagnosis of a compressor that is not operating efficiently.

Symptoms of an Overcharge

Detailed symptoms associated with refrigerant overcharge.

Symptoms of Refrigeration Shortage

Detailed symptoms associated with a refrigerant shortage.

Symptoms of a Restriction

Detailed symptoms and diagnostic methods for refrigerant system restrictions.

Symptoms of Air in System

Detailed symptoms and diagnostic methods for air in the refrigeration system.

Symptoms of Low or High Ambient Temperature Installation

How ambient temperature affects refrigeration system performance.

Heat Load

Factors contributing to heat load and their impact on the system.

Disassembly Procedures

Door Removal

Step-by-step guide for removing refrigerator and freezer doors.

Fresh Food Door

Detailed procedure for removing the fresh food compartment door.

Freezer Door (some models)

Instructions for removing the freezer compartment door.

Freezer Drawer (some models)

Procedure for removing the freezer drawer.

Refrigerator Compartment

Disassembly of components within the refrigerator compartment.

Light Bulb

Instructions for removing the refrigerator light bulb cover.

Light Bulb Assembly

Procedure for removing the refrigerator light bulb assembly and related parts.

Light Bulb Sockets

Steps to disconnect and remove light bulb sockets.

PC Control Board

Instructions for accessing and removing the PC control board.

Electronic Temp-Assure™ Damper Control

Procedure for removing the electronic damper control assembly.

Light Switch

Steps to disconnect and remove the light switch.

Fresh Food Thermistor (some models)

Procedure for accessing and removing the fresh food thermistor.

Water Tank (some models)

Instructions for removing the water tank assembly.

Water Dispenser (some models)

Procedure for removing the water dispenser assembly.

Freezer Compartment

Disassembly of components within the freezer compartment.

Freezer Thermistor (some models)

Steps to remove the freezer compartment thermistor.

Light Socket

Procedure for removing the freezer light socket.

Light Switch

Steps to remove the freezer light switch.

Freezer Back Panel

Instructions for removing the freezer compartment back panel.

Evaporator Fan, Evaporator Motor

Procedure for removing the evaporator fan and motor assembly.

Defrost Terminator (Thermostat)

Steps to remove the defrost terminator (thermostat) from evaporator tubing.

Defrost Heater

Procedure for removing the defrost heater from the evaporator.

Evaporator Removal

Instructions for removing the evaporator, including refrigerant reclaim.

Drawer Assembly (some models)

Procedure for removing the drawer assembly.

Drawer Rails

Steps to remove the drawer rails from the retainer.

Rack and Pinion Gear

Procedure for removing the rack and pinion gear assembly.

Bottom of Cabinet

Disassembly of components located at the bottom of the cabinet.

Front Roller Assembly

Instructions for removing the front roller assembly.

Rear Roller Assembly

Procedure for removing the rear roller assembly.

Machine Compartment

Disassembly of components within the machine compartment.

Condenser Fan & Fan Motor

Steps to remove the condenser fan and motor.

Compressor

Instructions for removing the compressor, including disconnecting lines.

Overload/Relay/Capacitor

Procedure for removing the overload, relay, and capacitor assembly.

Condensate Drain Pan

Steps to remove the condensate drain pan.

Condensate Drain Tube

Procedure for removing the condensate drain tube.

Condenser Removal

Instructions for removing the condenser and related tubing.

Control Board (Mid Level)

Programming Mode

Steps to enter and use the programming mode for setting codes.

Defrost Operation

Explanation of how the control board manages defrost cycles.

Forced Defrost Mode

Procedure to activate the forced defrost mode using the keypad.

Forced Defrost Mode

Continued procedure for entering and operating the forced defrost mode.

Service Test Mode

Instructions for entering and navigating the service test mode.

Service Test 1 - Defrost Thermostat & Defrost Circuit Test

Test to verify defrost thermostat and circuit operation.

Service Test 2 – Compressor/Condenser Fan Test

Test to evaluate compressor and condenser fan circuit operation.

Service Test 3 – Evaporator/Freezer Fan Test

Test to operate and inspect the evaporator/freezer fan.

Service Test 4 - Fresh Food Thermistor Test

Test to check the fresh food thermistor for Pass, Open, or Short results.

Service Test 5 - Freezer Thermistor Test

Test to check the freezer thermistor for Pass, Open, or Short results.

Service Test 6 – Open Damper Test

Test to check the refrigerator damper position and function.

Service Test 7 – FF Performance Adjustment

Allows adjustment of fresh food performance points (warmer/colder).

Service Test 8 – FZ Performance Adjustment

Allows adjustment of freezer performance points (warmer/colder).

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