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Whirlpool WED94HEXW1 - User Manual

Whirlpool WED94HEXW1
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PAGE 1
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DESTROY
IMPORTANT SAFETY NOTICE — “For Technicians only”
This service data sheet is intended for use by persons having electrical, electronic, and
mechanical experience and knowledge at a level generally considered acceptable in the
appliance repair trade. Any attempt to repair a major appliance may result in personal injury
and property damage. The manufacturer or seller cannot be responsible, nor assume any
liability for injury or damage of any kind arising from the use of this data sheet.
Whirlpool Control Panel ........................................ 2
Diagnostic Guide .................................................. 3
Activating the Service Diagnostic Mode ................ 3
User Interface/Control System Test ....................... 4
Install Diagnostics ................................................ 5
Software Version Display ...................................... 6
Fault/Error Codes ............................................. 6, 7
Contents
Troubleshooting Guide .......................................... 8
Troubleshooting Tests..................................... 9–20
Strip Circuits ...................................................... 21
Dryer Disassembly Instructions .................... 22, 23
Wiring Diagrams .......................................... 24, 25
Component Locations ........................................ 26
Specifications .................................................... 26
PART NO. W10306459B
IMPORTANT: Electrostatic Discharge (ESD) Sensitive Electronics
ESD problems are present everywhere. Most people begin to feel an ESD discharge at
approximately 3000V. It takes as little as 10V to destroy, damage, or weaken the main control
assembly. The new main control assembly may appear to work well after repair is finished,
but a malfunction may occur at a later date due to ESD stress.
Use an anti-static wrist strap. Connect wrist strap to green ground connection point or
unpainted metal in the appliance
-OR-
Touch your finger repeatedly to a green ground connection point or unpainted metal
in the appliance.
Before removing the part from its package, touch the anti-static bag to a green ground
connection point or unpainted metal in the appliance.
Avoid touching electronic parts or terminal contacts; handle electronic control assembly
by edges only.
When repackaging main control assembly in anti-static bag, observe above instructions.
Voltage Measurement Safety Information
When performing live voltage measurements, you must do the following:
Verify the controls are in the off position so that the appliance does not start when energized.
Allow enough space to perform the voltage measurements without obstructions.
Keep other people a safe distance away from the appliance to prevent potential injury.
Always use the proper testing equipment.
After voltage measurements, always disconnect power before servicing.

Questions and Answers

Summary

Safety and Precautions

Electrical Hazard Warnings

Critical warnings regarding electrical shock hazards and necessary precautions.

Voltage Measurement Safety

Essential safety steps for performing live voltage measurements on the appliance.

Electrostatic Discharge (ESD) Precautions

Guidance on preventing damage from static electricity to sensitive electronic components.

Important Safety Notice

Disclaimer regarding technician qualifications and manufacturer liability for service.

Whirlpool Control Panel Overview

Diagnostic Guide and Activation

Diagnostic Guide

Preliminary checks and essential information before performing diagnostic tests on the dryer.

Activating Service Diagnostic Mode

Step-by-step procedure for entering the dryer's service diagnostic mode.

User Interface;Control System Tests

Console Button and Indicator Functionality

Verifies the functionality of all control panel buttons and indicator lights.

Component System Tests

Tests the console, motor, heater, water valve, door switch, drum LED, and moisture sensor.

Install Diagnostics

L2 and L1 Detection Tests

Tests the dryer's L2 and L1 voltage detection and CCU calculation of L1 to L2.

Airflow Detection Tests

Checks the airflow detection routine and result display.

Water System and Steam Test

Initiates the water system test, activating the water valve and drum light.

Software Version and Fault Code Information

Software Version Display

Procedure to view the appliance's software revision codes for CCU and User Interface.

Fault;Error Code Display Method

Details how fault and error codes are displayed, indicating system or component issues.

Customer Fault;Error Codes

Lists common customer-reported fault codes with explanations and recommended procedures.

Service Fault;Error Codes

Troubleshooting Guide

Troubleshooting Tests: CCU Power Check

CCU Power Check Procedure

Tests incoming and outgoing power to the Cycle Control Unit (CCU).

CCU Connector Pinouts

Diagram showing CCU connectors and their pin assignments for testing.

Troubleshooting Tests: Supply Connections

Supply Connections Test Procedure

Verifies proper voltage at the outlet and continuity of supply connections to the CCU.

Troubleshooting Tests: Motor Circuit

Motor Circuit Test

Checks wiring and components related to the drive motor and belt switch.

Troubleshooting Tests: Heat System

Heat System Components

Lists components checked in the heating circuit for electric and gas dryers.

Troubleshooting Tests: Heat System Components

Electric Dryer Heat Components

Details checks for heaters, thermal cutoff, and thermostats in electric dryers.

Gas Dryer Heat Components

Details checks for thermal fuse, high limit thermostat, and thermal cutoff in gas dryers.

Troubleshooting Tests: Thermistors

Outlet Thermistor Test

Measures resistance of the outlet thermistor to diagnose exhaust temperature issues.

Inlet Thermistor Test

Measures resistance of the inlet thermistor to diagnose intake temperature issues.

Troubleshooting Tests: Thermal Fuse and Cut-Off

Thermal Fuse Test

Checks continuity across the thermal fuse, essential for motor and gas valve circuits.

Thermal Cut-Off Test

Verifies the status of the thermal cut-off for dryers that do not produce heat.

Troubleshooting Tests: Moisture Sensor

Moisture Sensor Diagnostic Test

Tests the moisture sensor strips and connections for proper operation.

Adjusting Customer-Focused Dryness Level

Guide to adjusting the dryer's dryness level settings for improved performance.

Troubleshooting Tests: Buttons, Indicators, and Door Switch

Buttons and Indicators Test

Diagnoses issues with unresponsive buttons, missing indicators, or no beep sound.

Door Switch Test

Verifies the functionality of the door switch and its impact on dryer operation.

Troubleshooting Tests: Drum LED and Water Valve

Drum LED Test

Checks if the drum LED lights up and verifies its driver circuit.

Water Valve Test

Tests the water valve for proper function and resistance.

Strip Circuits

Dryer Disassembly Instructions

Removing Top and Rear Panels

Steps for removing the top and rear panels to access internal components.

Removing Console and Front Panel

Procedure for removing the user interface console and the front panel assembly.

Dryer Disassembly: Front Bulkhead and Drum

Removing Front Bulkhead and Drum

Instructions for removing the front bulkhead and the dryer drum.

Electric Dryer Wiring Diagram

Gas Dryer Wiring Diagram

Component Locations and Dryer Specifications

Component Locations

Visual guide showing the physical locations of key dryer components.

Dryer Specifications

Technical details including voltage, amperage, frequency, and dimensions of the dryer.

Summary

Safety and Precautions

Electrical Hazard Warnings

Critical warnings regarding electrical shock hazards and necessary precautions.

Voltage Measurement Safety

Essential safety steps for performing live voltage measurements on the appliance.

Electrostatic Discharge (ESD) Precautions

Guidance on preventing damage from static electricity to sensitive electronic components.

Important Safety Notice

Disclaimer regarding technician qualifications and manufacturer liability for service.

Whirlpool Control Panel Overview

Diagnostic Guide and Activation

Diagnostic Guide

Preliminary checks and essential information before performing diagnostic tests on the dryer.

Activating Service Diagnostic Mode

Step-by-step procedure for entering the dryer's service diagnostic mode.

User Interface;Control System Tests

Console Button and Indicator Functionality

Verifies the functionality of all control panel buttons and indicator lights.

Component System Tests

Tests the console, motor, heater, water valve, door switch, drum LED, and moisture sensor.

Install Diagnostics

L2 and L1 Detection Tests

Tests the dryer's L2 and L1 voltage detection and CCU calculation of L1 to L2.

Airflow Detection Tests

Checks the airflow detection routine and result display.

Water System and Steam Test

Initiates the water system test, activating the water valve and drum light.

Software Version and Fault Code Information

Software Version Display

Procedure to view the appliance's software revision codes for CCU and User Interface.

Fault;Error Code Display Method

Details how fault and error codes are displayed, indicating system or component issues.

Customer Fault;Error Codes

Lists common customer-reported fault codes with explanations and recommended procedures.

Service Fault;Error Codes

Troubleshooting Guide

Troubleshooting Tests: CCU Power Check

CCU Power Check Procedure

Tests incoming and outgoing power to the Cycle Control Unit (CCU).

CCU Connector Pinouts

Diagram showing CCU connectors and their pin assignments for testing.

Troubleshooting Tests: Supply Connections

Supply Connections Test Procedure

Verifies proper voltage at the outlet and continuity of supply connections to the CCU.

Troubleshooting Tests: Motor Circuit

Motor Circuit Test

Checks wiring and components related to the drive motor and belt switch.

Troubleshooting Tests: Heat System

Heat System Components

Lists components checked in the heating circuit for electric and gas dryers.

Troubleshooting Tests: Heat System Components

Electric Dryer Heat Components

Details checks for heaters, thermal cutoff, and thermostats in electric dryers.

Gas Dryer Heat Components

Details checks for thermal fuse, high limit thermostat, and thermal cutoff in gas dryers.

Troubleshooting Tests: Thermistors

Outlet Thermistor Test

Measures resistance of the outlet thermistor to diagnose exhaust temperature issues.

Inlet Thermistor Test

Measures resistance of the inlet thermistor to diagnose intake temperature issues.

Troubleshooting Tests: Thermal Fuse and Cut-Off

Thermal Fuse Test

Checks continuity across the thermal fuse, essential for motor and gas valve circuits.

Thermal Cut-Off Test

Verifies the status of the thermal cut-off for dryers that do not produce heat.

Troubleshooting Tests: Moisture Sensor

Moisture Sensor Diagnostic Test

Tests the moisture sensor strips and connections for proper operation.

Adjusting Customer-Focused Dryness Level

Guide to adjusting the dryer's dryness level settings for improved performance.

Troubleshooting Tests: Buttons, Indicators, and Door Switch

Buttons and Indicators Test

Diagnoses issues with unresponsive buttons, missing indicators, or no beep sound.

Door Switch Test

Verifies the functionality of the door switch and its impact on dryer operation.

Troubleshooting Tests: Drum LED and Water Valve

Drum LED Test

Checks if the drum LED lights up and verifies its driver circuit.

Water Valve Test

Tests the water valve for proper function and resistance.

Strip Circuits

Dryer Disassembly Instructions

Removing Top and Rear Panels

Steps for removing the top and rear panels to access internal components.

Removing Console and Front Panel

Procedure for removing the user interface console and the front panel assembly.

Dryer Disassembly: Front Bulkhead and Drum

Removing Front Bulkhead and Drum

Instructions for removing the front bulkhead and the dryer drum.

Electric Dryer Wiring Diagram

Gas Dryer Wiring Diagram

Component Locations and Dryer Specifications

Component Locations

Visual guide showing the physical locations of key dryer components.

Dryer Specifications

Technical details including voltage, amperage, frequency, and dimensions of the dryer.

Whirlpool WED94HEXW1 Specifications

General IconGeneral
BrandWhirlpool
Model NumberWED94HEXW1
Appliance CategoryDryer
Fuel TypeElectric
Dryer TypeFront Load
Capacity7.4 cu. ft.
ColorWhite
Sensor DryYes
Steam CycleYes
Energy Star CertifiedYes
Drying Cycles10
Control TypeElectronic
Number of Cycles10
Number of Options5
Wrinkle Shield OptionYes
Steam FunctionYes
Voltage240 V
Amperage30 A
Width27 in

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