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Maytag Commercial MYR20 User Manual

Maytag Commercial MYR20
88 pages
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Maytag Commercial
Multi Load Washer
SERVICE MANUAL
MYR20 MYR30
MYR25 MYR40
W11262428
TECHNICAL EDUCATION
MODELS:

Table of Contents

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Maytag Commercial MYR20 Specifications

General IconGeneral
BrandMaytag Commercial
ModelMYR20
CategoryWasher
LanguageEnglish

Summary

Forward

Goals and Objectives

Outlines the manual's purpose and aims for service professionals.

Interactive Service Manual Instructions

View Equipment & Safety Video

Link to view operational and safety videos.

General

Washer Safety

Essential safety guidelines, hazard symbols, and warnings.

Important Electrostatic Discharge (ESD)

Precautions for handling sensitive electronic components.

Model Number Designations

Serial Number Designations

Data Plate Location

Warranty for Vended Product

What Is Covered

Details warranty coverage for parts and labor.

What Is Not Covered

Lists exclusions from the warranty.

Warranty for On-Premise Product

What Is Covered

Details warranty coverage for parts and labor.

What Is Not Covered

Lists exclusions from the warranty.

Information & Specifications

Rigid Model Dimensions

Provides physical dimensions for different washer models.

Specifications

Washer Dimensions

Detailed physical measurements for washer models.

Bolt Torque Values

Basic Operation

Power

Explains the flow of electrical power to the washer.

Door Lock

Describes the door lock assembly and its operation.

Basic Operation

Water Inlet Valves

Details the function, types, and operation of water inlet valves.

Basic Operation

USB Update Procedure

Instructions for updating software using the USB port.

Chemical Injection

Describes the chemical injection inlets and supply connection.

Basic Operation

Washer Maintenance

Provides a schedule for routine washer maintenance.

Basic Operation

Belt Inspection and Adjustment

Procedure for inspecting and adjusting the drive belt.

Component Access

Top Panel Open

Instructions on how to open the top panel using a key.

Component Access

Components Accessible Under the Top Panel

Lists major components located beneath the top panel.

Component Access

Chemical Dispenser Assembly

Details the removal and servicing of the chemical dispenser.

Component Access

Top Panel Lock

Procedure for removing the top panel lock mechanism.

Component Access

Top Panel Removal

Step-by-step guide to removing the top panel.

Component Access

EMI Filter

Instructions for removing and servicing the EMI filter.

Component Access

Drive Contactor

Details the removal and servicing of the drive contactor.

Component Access

Supply Power Transformer

Instructions for removing the supply power transformer.

Component Access

Supply Power Switch

Procedure for removing the supply power switch.

Component Access

Fuse Replace

Instructions on how to replace fuses in the washer.

Component Access

Soap Signal Board

Details on accessing and servicing the soap signal board.

Component Access

Variable Frequency Drive

Instructions for removing the Variable Frequency Drive.

Component Access

Water Inlet Valve Repair

Procedure for repairing water inlet valves.

Component Access

Water Inlet Valve Removal

Step-by-step guide to removing water inlet valves.

Component Access

Control Panel Open

Instructions for accessing components within the control panel.

Component Access

Emergency Stop Button

Procedure for removing the emergency stop button.

Component Access

Coin Drop

Details on removing and servicing the coin drop acceptor.

Component Access

HMI - Connections

Diagram of Human Machine Interface (HMI) connections.

Component Access

Human Machine Interface - Removal

Procedure for removing the Human Machine Interface (HMI).

Component Access

Appliance Control Unit - ACU - Connections

Details connections for the Appliance Control Unit (ACU).

Component Access

Appliance Control Unit - Removal

Procedure for removing the Appliance Control Unit (ACU).

Component Access

Wifi Module

Instructions for removing the Wi-Fi module.

Component Access

Service Switch

Procedure for removing the service switch.

Component Access

Door Handle

Instructions for removing the door handle.

Door Strike

Instructions for removing the door strike.

Component Access

Door and Door Hinges

Procedure for removing the door and its hinges.

Component Access

Door Glass

Instructions for removing and reinstalling the door glass.

Component Access

Toe Panel

Procedure for removing the toe panel.

Component Access

Drain Valve

Detailed instructions for removing the drain valve.

Component Access

Front Panel

Procedure for removing the front panel.

Component Access

Door Lock

Instructions for removing the door lock assembly.

Component Access

Heating Elements

Procedure for accessing and removing heating elements.

Component Access

Ornament Panel

Instructions for removing the ornament panel.

Component Access

Back Panel

Procedure for removing the back panel.

Component Access

Lower Back Panel

Instructions for removing the lower back panel.

Component Access

Drive Belt

Procedure for removing the drive belt.

Temperature Sensor

Instructions for removing the temperature sensor.

Component Access

Speed Sensor

Procedure for removing the speed sensor.

Component Access

Drive Motor

Instructions for removing the drive motor.

Component Access

Bearing Housing

Procedure for removing the bearing housing.

Component Access

Bearing and Basket Replacement - Preferred Method

Detailed steps for replacing the bearing and basket.

Component Testing

Component Resistance Values

Lists resistance values for key components.

Door Lock

Procedure for testing the door lock assembly.

Component Testing

ACU Door Lock Connections

Wiring diagram for ACU and door lock.

Component Testing

Variable Frequency Drive

Instructions for testing the Variable Frequency Drive.

Component Testing

Variable Frequency Drive Wiring

Wiring diagrams for the Variable Frequency Drive.

Component Testing

Drive Contactor

Details on testing the drive contactor.

Component Testing

Coin Drop Acceptor

Procedure for testing the coin drop acceptor.

Diagnosis and Troubleshooting

Service Diagnostics

How to enter and use diagnostic modes for testing.

Diagnostic Cycle Chart

Sequence and components tested in diagnostic cycles.

Diagnosis and Troubleshooting

Error Codes

List of error codes and their descriptions.

Wiring Diagram

Single Phase

Wiring diagram for single phase models.

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