GE Profile WASE4220 Washer Electronic Control User Guide

GE Profile WASE4220 Washer Electronic Control

MODELS

MODEL SERIES

• WASE4220
• WBBE3300
• WBSE2090
• WBXE2070
• WCSE3100
• WCSE4230
• WJSE3110
• WNSE4200
• WPSE3120
• WPSE4200
• WPSE4270
• WSSE4220

IMPORTANT SAFETY NOTICE

The information in this service guide is intended for use by individuals possessing adequate backgrounds of electrical, electronic and mechanical experience. Any attempt to repair a major appliance may result in personal injury and property damage. The manufacturer or seller cannot be responsible for the interpretation of this information, nor can it assume any liability in connection with it’s use.

CAUTION

• To avoid personal injury, disconnect power before servicing this product.
• If electrical power is required for diagnosis or test purposes, disconnect the power immediately after performing the necessary checks.

RECONNECT ALL GROUNDING DEVICES

• If grounding wires, screws, straps, clips, nuts, or washers used to complete a path to the ground are removed for service, they must be returned to their original position and properly fastened.

Electronic Control Description

Now GE answers the need for true clothes care with the PrecisionCareWasher,the first in a series of remarkable new electronic clothes washer and dryer systems. Unlike other washers that change only the length of time spent scrubbing clothes,the unique programmed cycles change wash time, agitation speed and soak time. For the servicer the LED’s provide diagnostics indicators for most component level parts, the control knobs appear to the user as the same switch-type controls we have used on previous front service washer. However, it is operated by a PC Board Controller and a two-wire pressure switch that sends a signal to the board for water level control.

GE PrecisionCare Washer is a laundry system versatile enough to truly clean almost everything you own from heavy cottons to hand washables to dry cleanables. Specialized settings take care of a variety of fabrics. The GE Precision Care Washer has been designed to clean and care for delicates to heavy cotton. And the washer is flexible enough to handle different size loads, from a week’s worth of the family’s bed linens to a single sweater.

GE’s Precision Care washer is a completely new design, inside and out. The result of a four-year development program, the Precision Care system was put through rigorous GE Six Sigma tests for quality and durability. In addition, the GE Clothes Care Institute was established especially for this long-term project. Staffed by accredited textile experts, the Institute is dedicated to developing washing and drying methods that help prolong the “life” of fabric fibers. The GE Precision Washer is offered in the Profile™ and Profile Performance Series™ product lines.

Control Panels

Model WASE4220

Model WNSE4200

Model WPSE4200

Model WPSE4270

Model WPSE5290

Model WSSE4220

The electronic washer control replaces the current electromechanical timer and rotary selection switches. This should improve the reliability of the controls throughout the life of the washer. Primary differences from previous controls is that the cycle selection knob DOES NOT SELF ADVANCE, the units feature LED lights for cycle sta- tus, and have a Start button. The LED lights are also used as a service technicians’ diagnostics tool.

Although the model change is called L2, it con- sist of four variations. The service PC Control is WH12X10106, and will require the insertion of correct knobs and detents for the model being serviced. Instructions are shipped with the kit.

• L2B-Two knob models*
• L2C-Three knob models*
• (L2D-Four knob models )
  • ( Note: this is a separate part)
• L2S-Field service control to replace L2C or L2B.

Number of knobs doesn’t include pressure switch.

Another important change is that the pressure switch now gets its’ signal from the control board and does not carry line current. It is now a two wire connection as shown on the mini manual in the back of this service guide.

About the control settings

1. Load Size
   • The water level should just cover the clothes. Adjust the load size accordingly. Loosely load clothes no higher than the top row of holes in the washer tub.
2. Custom Care Wash/Spin Speeds
   • The agitator moves clothes around for a cleaner wash: the basket spins later in the cycle to release water from the load. The Wash/Spin Speed dial set the speed of both the agitator and the basket With Normal wash speed, the agitator moves faster. Use for cottons, denims and play clothes. With Gentle wash speed, the agitator moves slower. Use for delicate and knit items.
   • The Fast spin sped is for durable items. The slow spin speed is for delicate items like sweaters and lingerie. When using the Slow Spin speed, clothes will be less dry than when using Fast spin speed.
   • The Handwash wash speed is for items labeled handwashable.
3. Temperature
   • Select the water temperature for the wash and rinse cycles. Always follow fabic manufacturers care label or instructions when laundering. Follow the water temperature guide on the washer lid.
4. Wash Cycle
   • The wash cycle controls the length of the washing process. When choosing the cycle, the Cycle Selector knob can be pointed anywhere within the colored box. The knob can be turned in either direction. Turing the Cycle Selector knob after starting a cycle will stop the washer and rest the cycle to the new selection. Press START to begin the new cycle selection.
   • The Cycle indicator Lights show what stage the washer is in. The wash time is the length of the wash agitation. The 6 MIN light will remain lit during drain and spin. When the Selector knob is set to a new cycle the Indicator Lights will flash momentarily, showing what stages the cycle will go through.
   • The chart below will help you match the wash cycle setting with your clothing
     • COTTONS: For heavy to lightly soiled cottons, household linens, work and play clothes.
     • EASY CARE: For wrinkle-free and permanent press items, and knits.
     • HANDWASH: For lingerie and items labeled handwashable with light soils. Provides periods of agitation and soak durina wash and rinse
     • DELICATES: For lingerie and special-care fabrics with light to normal soil.
     • EXTRA HEAVY: For heavily soiled and heavy-duty fabrics. This cycle provides a longer agitation.
     • 15 MIN/30 MIN AUTO SOAK: For heavily soiled clothes. Begins with a brief agitation, soaks for a specified period of time, then moves through the rest of the cycle automatically.
5. START
   • Press START to begin the cycle. Pressing START again or raising the lid will PAUSE the cycle and the CYCLE indicator light will blink.

About washer features

• 2nd Rinse Option (on some models)
  • When you use extra detergent or bleach to clean heavily soiled clothes, you may want to use the 2nd Rinse option. It provides a second deep cold rinse.
• Extended Spin Option (on some models)
  • Use this option to extract more water from your clothes. Clothes will be drier when this option is selected.
• Signal Off Option (on some models)
  • Some models have a signal that will sound at the end of the cycle. Use this option to turn off the signal.

Spot Spray (on some models)

When you open the washer lid and press SPOT SPRAY button, you will see a short stream of cold water.

1. Open the washer lid.
2. Press the SPOT SPRAY button. (You will see a short stream of water.)
3. Dampen your soiled garment with the SPOT SPRAY option and rub your favorite pretreatment product into soiled area

NOTE: The SPOT SPRAY option will not work if

• the washer lid is down
• the washer tub is filling
• the water has already reached the level you selected.

Perfectemp

• Perfectemp senses the incoming water temperature and adjusts the fill water to obtain a more precise temperature range for all three wash temperatures. You may select cold, warm or hot.
• For example, in a Cold Wash selection, some warm water may be added to reach a temperature needed to better dissolve detergents. Often, detergents are not completely dissolved in very cold water, especially in cooler climates.

NOTE: Perfectemp will not adjust the fill on WARM WASH unlessthe washer lid disclosed. Be sure to start the washer after the lid is closed.

TO REMOVE PC BOARD

1. Remove 4 screws from top of backsplash as shown.
2. Remove all control knobs by gently pulling them off of switch shaft.
3. Remove harness connectors, and Model selector harness plug. Save plug to reinstall in new PC Board. See plug location and picture this page.
   • NOTE: It is CRITICAL that you retain and reinstall the original MODEL SELECTOR HARNESS PLUG, when reinstalling the new PC Board. This plug signals the board as to model number, features etc.
4. Remove 4 to 6 1/4″ hex screws (depends on model being serviced) from control board as shown.
5. Remove pressure switch wiring from board, and then carefully lift out PC Board.

TO REINSTALL PC BOARD

1. To prevent electrostatic discharge, ground your- self out to washer cabinet, or use ESD wrist band.
2. Align PC Board to backsplash mounting plate making sure that they correctly align, and rein- stall the 4 to 6 1/4″ hex screws. Make sure LED’s are aligned and showing through control panel when reassembled.
3. Reconnect pressure switch wiring.
4. Insert MODEL SELECTOR HARNESS PLUG that you retained from original PC Board.
5. Reinstall harness connectors.
6. Reinstall backsplash to back panel with 4 screws.
7. Reinstall control knobs.

BASIC WASHER OPERATION

The main wash functions are still accomplished through a single or two speed motor, hot and cold- water valves, and a pump. The components are controlled by the electronic control, pressure switch, and rotary or push button (high end) selector switches.

Basic specifications for the motor, pump and water valves are:

• FILL: timed 20 minute maximum
• AGITATION: 12 minutes
• PUMP OUT: 3 minutes
• SPIN: 3 minutes
• RINSE FILL: timed, 40 minute maximum
• RINSE: 3 minutes
• PUMP OUT: 3 minutes
• FINAL SPIN: 6 minutes
• Electrical:
  • Motor: 1/2hp, 10 amps, 70 amps in-rush, 120VAC
  • Pump:  3.2 amps, 120VAC
  • Water Valves: 0.1 amps each, 120VAC Relays are 12V DC

The lid switch pauses all washer operations excepting water fill, when the lid is raised. The lid switch cuts power to the D.C. relay coil for the motor. The pressure switch is in series with the AC power line of both water valves. The two wire system for the pressure switch, reads OPEN with water in the tub.

WASHER MODES

FILL

Fill mode activates the water valves according to temperature selected. The cycle advances to the next mode as soon as the pressure switch opens (trips). A fail safe system is built into the control to prevent serious flooding due to a failure in the pressure switch system. The fill is timed, and the water valves are de-energized after 40 minutes if the pressure switch has not been tripped. At that point the cycle stops and pauses. If the user changes temperature during fill, it occurs immediately at the change. The fill LED light is on in wash and rinse, when the washer is filling.

WASH, RINSE, EXTRA RINSE AGITATION MODES

Wash, rinse, and extra rinse operate the motor in agitate at the selected wash speed. Relays switch speed, motor direction for spin or agitate, and main power to the motor. When speed is changed and the motor is running, relays go through the turn off sequence, and then turn on at the newly selected speed. During the wash fill, one of four lights will be on, indicating selection, and progresses as the cycle advances. The wash light remains on during pump and spin when the washer is in the rinse cycle. The rinse and extra rinse lights are on during fill, rinse, and pump, while the washer is in the extra rinse cycle.

DRAIN PUMP OUT

The control board has circuitry that detects through the pump control relay, a measurement of current of the pump motor. That current describes the torque the motor is outputting. That measurement can determine if the pump motor is pumping water, and when it is finished pumping water and is pumping air.

Multiple samples of the current reading are taken by the PCB, and if acceptable allow the cycle to continue to spin. If it didn’t meet the proper readings, PCB will continue to sample, up to a period of 3 minutes. If after 3 minutes the PCB doesn’t detect a decrease in the pump current, but the pressure switch reset, the spin mode will be started. If during the spin, the pressure switch trips, the PCB will revert back to pump mode for a second 3 minute pump period, and looks for a decrease in current. If that is not successful the PCB will put washer in idle. This could be indi- cator of a pump motor that is blocked, or a standpipe too high.

IDLE

• The idle mode has no LED’s or relays on, the control is waiting for the consumer to touch a keypad or switch.

PAUSE/STOP

• Pause mode occurs when the consumer presses the stop button during the cycle, the lights that were on indicating current cycle blink. If the start button is not pushed in 24 hours, the control initiates drain, and final spin.

POWER OUTAGE

• In the event of a power outage, and the washer is NOT in idle, the cycle status, and modes are saved in EEPROM. When the power resumes, the washer resumes where it left off. (Start but- ton doesn’t have to be pressed).

AUTOMATIC TEMPERATURE CONTROL

The high end models have an Automatic Temperature Control, ATC. It uses a mathematical system to control cold, warm and hot fills by turning the hot and cold water valves on and off during the fill. The formula limits the number of times the valve is cycled to control noise, and wear.

ATC in the WARM setting is not allowed, it is allowed when the lid is closed, this prevents the consumer from having rapid temperature changes on their hands in water stream, when the lid is open. When the ATC is engaged the water tempera- ture in the tub should be maintained within the ranges specified in the table below for the different wash/rinse settings.

FILL IN GALLONS

• Low fill is 9 gallons, and the maximum fill is 22 gallons. A 50 ohm thermistor is located in the outlet stream of the water valve.
• The thermistor is accurate to ‡3%, and is used to estimate the temperature of the water in the tub.

SPOT

• When the SPOT button is pressed, the cold water valve is turned on for 8 seconds.
• The button works in pause or run mode only, when the lid is raised and the pressure switch is closed. (not a tub full of water).

Diagnostics Mode

L2 DIAGNOSTICS MODE

The new electronics pc board has an on board diagnostics system. To place the washer in the FIELD SERVICE MODE and EXIT the FIELD SERVICE MODE, follow the sequence shown below.

The following steps are performed by turning the cycle selector clockwise to the next click (detent).

1. All LED’s light.
2. Model Code Identifier
3. Error Code Identifier (see Problem Diagnostics – Error Codes.)
4. Hot water valve activation.
5. Cold water valve activation.
6. Slow speed dry agitation.
   • ( NOTE: Being in either speed agitation and holding the start button in for 2 seconds will require disable DRY AGITATION and require FILLING WITH WATER before agitation.
7. Fast-speed Dry Agitation.
8. Pump Activation.
9. Spin Activation.

LIGHT INDICATORS

The eight lights above the cycle control knob provide digital indicators of the faults, model, and function. The chart below and continued next page shows first LID SWITCH confirmation, then model code, error codes, and then functional component operation, as cycled through the field test Mode. The front service washer major components are the same as previous model except the two wire pressure switch, and lid switch.

Step

• 0: LED check
  • Note: If lift Lid, LEDS will blink (confirms Lid Switch)

Model code

Confirms/ LEDs ok

ID Plug Wire Colors

• orange/white
• red/white
• blacklblacklbluelblue
• red/red
• red/red
• orange black black
• black/black
• yellow
• blue
• orange
• yellow/white
• white
• black black/white
• gray black black
• yellow/red
• black/black/yellow
• yellow
• blue
• white
• black/black
• red/white
• orange/white
• red/red

Error code

Error /Problem

• EEPROM bad (replace board)
• Thermistor bad or disconnected Flooded

  • 3 minute pump out

  • 40 minute Fill maximum

• Pumping air with Pressure Switch closed Stuck pushbutton

Hot Water Valve on

• Hot Water Valve

Cold Water Valve on

• Cold Water Valve

Low Speed Agitate

• Low Speed Agitate

High Speed Agitate

• High Speed Agitate

Pump Out

• Pump

High Speed Spin

• High Speed Spin

To exit the Field Test Mode

• Depress Start button, rotate Cycle Selector Knob 180 degrees, release Start button
• Unplug washer

The washer is the current front service model with Electronic control, two- wire pressure switch, and lid switch redesign. The pressure switch is now signaling the PC board and can be checked at pin 4 (wire color white with red tracer), and pin 7 (wire color ex-brown) of the pin connector based on the model, check your mini manual for a product being serviced.

FAULT LIGHT TROUBLESHOOTING

175D2750G151-175D2750G151

MODEL DEPENDANT

1. LED ON
   • LED OFF
   • DEPRESS START BUTTON WILL CHANGE DRY TO WET
2. LED ON IF TUB FULL (PRESS SATISFIED)

Exploded View

Exploded View (sample)

MODEL(S)

• WASE4220AOAA
• WNSE4200AOWW
• WASE4220AOWW
• WTSE4210AOWW
• WMSE4230AOWW
• WNSE4200AOAA

The exploded views and catalog numbers are for illustration purposes only. For full parts and catalog numbers refer to GE Illustrated Parts Catalog, or Microfiche

CONTROLS & BACKSPLASH

NOTE: HARNESS WIRE WH19X0163

PARTS CATALOG

GE Consumer Service Training
Technician Service Guide
Copyright © 2000

All rights reserved. This service guide may not be reproduced in whole or in part in any form without written permission from the General Electric Company.

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