SHARP p060331 Service Manual

PRODUCT TRAINING

WM2688H*M Discovery Steam Washer

WM2688H*M Steam Washer Training

Contact Information


Customer Service (and Part Sales)		(800) 243-0000
Technical Support (and Part Sales)		(800) 847-7597
USA Website	us.lgservice.com
Customer Service Website	us.lgservice.com
B2B Service Website	biz.lgservice.com
LG CS Academy	lgcsacademy.com

Published March 2006 by LG Technical Support and Training

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Preliminary Matters (The Fine Print)

IMPORTANT SAFETY NOTICE

The information in this training manual is intended for use by persons possessing an adequate background in electrical equipment, electronic devices, and mechanical systems. In any attempt to repair a major appliance, personal injury and property damage can result. The manufacturer or seller maintains no liability for the interpretation of this information, nor can it assume any liability in conjunction with its use. When servicing this product, under no circumstances should the original design be modified or altered without permission from LG Electronics. Unauthorized modifications will not only void the warranty, but may lead to property damage or user injury. If wires, screws, clips, straps, nuts, or washers used to complete a ground path are removed for service, they must be returned to their original positions and properly fastened.

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Preliminary Matters (The Fine Print)

CAUTION

To avoid personal injury, disconnect the power before servicing this product. If electrical power is required for diagnosis or test purposes, disconnect the power immediately after performing the necessary checks. Also be aware that many household appliances present a weight hazard. At least two people should be involved in the installation or servicing of such devices. Failure to consider the weight of an appliance could result in physical injury.

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Preliminary Matters (The Fine Print)

ESD NOTICE

Some of the electronic in appliances are electrostatic discharge (ESD) sensitive. ESD can weaken or damage the electronics in these appliances in a manner that renders them inoperative or reduces the time until their next failure. Connect an ESD wrist strap to a ground connection point or unpainted metal in the appliance. Alternatively, you can touch your finger repeatedly to a ground connection point or unpainted metal in the appliance. Before removing a replacement part from its package, touch the anti-static bag to a ground connection point or unpainted metal in the appliance. Handle the electronic control assembly by its edges only. When repackaging a failed electronic control assembly in an anti-static bag, observe these same precautions.

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Preliminary Matters (The Fine Print)

REGULATORY INFORMATION

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a residential installation. This equipment generates, uses, and can radiate radio frequency energy, and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna; Increase the separation between the equipment and the receiver; Connect the equipment to an outlet on a different circuit than that to which the receiver is connected; or consult the dealer or an experienced radio/TV technician for help.

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Preliminary Matters (The Fine Print)

COMPLIANCE

The responsible party for this device’s compliance is:

LG Electronics Alabama, Inc.

201 James Record Road,

Huntsville, AL, 35824.

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Introduction

The DISCOVERY series of washers and dryers is the top of the line and includes every option and feature.

Most notable are the steam generator and the LCD display.

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Specifications

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Features

LARGE CAPACITY

The larger drum (4.0 cu. ft.) allows washing of larger (heavier) loads and oversized items (comforters, curtains, blankets, etc.) There is less wrinkling and tangling of the laundry.

DIRECT DRIVE

The brushless DC motor drives the drum directly without belts, pulleys, or transmissions. The maximum spin speed of 1,320 RPM extracts more water from the laundry, reducing drying times.

TILTED DRUM/LARGE DOOR

The tilted drum (10°) and large door opening allow easier loading and unloading.

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Features (continued)

STEAM WASHING/SteamFresh®

The steam feature works with the recirculating pump to increase washing performance while maintaining low energy and water usage. SteamFresh® removes wrinkles from dry clothes.

ROLLER JETS and BALLS

The baffles pick up water as the drum turns and allow it to pour through the clothing as it tumbles. The balls enhance the washing performance while maintaining fabric care.

AUTOMATIC LOAD DETECTION

The microprocessor reads the current required to turn the drum and determines the weight of the load. This input is used to make numerous decisions during the wash cycle.

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Features (continued)

BUILT-IN HEATER

The internal heater helps maintain the water at its optimal temperature for selected cycles. The SANITARY cycle kills most common germs and bacteria.

CHILD LOCK

This allows the user to lock the controls. Children then cannot play with the buttons and disturb the wash cycle.

REMOTE LAUNDRY MONITOR

Available separately, the remote monitor displays the cycle and remaining time of the washer and dryer. It can be plugged in to any outlet in the house.

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Features (continued)

LCD Display

The bright display replaces numerous LEDs and shows instructions when the controls are set.

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Serial Number Identification

The serial number is unique to each product. It gives information concerning the time and

place of manufacture. The serial number is required to be paid for warranty service and to get the correct part in the event a running production change was made. Some models may have four (4) letters instead of two (2) for the product code number. The third and fourth letters are significant only to the manufacturing facility.

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Fuzzy Logic

To get the best washing performance, the user selects one of the standard cycles. Sensors in the COMBO make an infinitely variable number of adjustments as the cycle progresses. Adjustments are automatically made for load size, incoming water temperature, soil level, rinses required, and other variables.

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Door Lock

The door has an automatic, electrically operated lock system. When the machine is off or paused, the door can be opened by pulling it. When the machine is operating, the electric latch keeps the door closed.

The door cannot be opened:

•When the COMBO is operating

•When the power failed or the washer is unplugged (until the capacitor discharges and releases the lock)

•When the DOOR LOCK light is on •When the drum is still turning

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Door Locked Lamp

DOOR LOCKED LAMP

The DOOR LOCK lamp lights:

•When the COMBO is operating

•When the water level sensor frequency is lower than 22.9 kHz

•When the temperature inside the tub is over 45° C (113°F)

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Water Circulation

The recirculation pump circulates the water during most of the cycle. During the WASH cycle, it runs continuously for the first 3 minutes and then intermittently throughout the cycle. During the RINSE cycle, it runs continuously as soon as the appropriate amount of rinse water has been added. This recirculated water enters the drum at the top of the door at a small shower head. This spray not only keeps the window and gasket clean, it allows the clothes to be soaked with detergent or rinse water more quickly and can be used to control an oversudsing event.

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Water Recirculation

The recirculation pump is separate from the drain pump, but they are attached to opposite sides of the filter housing.

The steam is not pumped; it comes into the washer drum under its own pressure. When steam or the sanitary cycle is used, the door will remain locked until the laundry has cooled to a safe temperature.

The pumps and filter are located at the bottom left front corner. The filter can be unscrewed, cleaned, and replaced.

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Water Circulation

Use the small drain hose to evacuate the water remaining in the bottom of the tub before removing the filter.

The drain pump is on the left and exhausts the water via the gray corrugated hose.

The recirculating pump is on the right and recirculates water from the tub to the shower spray at the top of the door gasket via the smaller black hose.

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Parts Identification

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Air Vent

The air vent on the back of the machine must be left open and clear at all times.

If the washer is installed in a closet or closed laundry alcove, there must be sufficient clearance and ventilation. The closet should have a full louvered door with at least 800 square inches (0.5 m2) of open area for ventilation.

The washer requires a space of at least 1 inch (2.5 cm) between the wall and the machine on each side and at least 4 inches (10 cm) between the back of the washer and the wall.

Additional space may be needed for servicing.

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Accessories

The washer comes with the two input hoses. The blue stripe is for cold water and the red stripe is for hot water. While the hoses are mechanically identical, it is critical to the performance of the washer to have the hot and cold hoses connected correctly.

The wrench is used to remove (and replace) the shipping bolts and to adjust the leveling feet. Be sure to leave it and encourage the customer to retain the wrench, the four shipping bolts, and the manual in a safe place in the event the washer requires service or the customer moves.

The shipping bolts MUST BE REMOVED before operating the washer.

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Remote Laundry Monitor and Modem

The remote laundry monitor (RLM) allows the user to monitor the progress of both washer and dryer, provided they are quipped with a modem.

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Install The Washer Modem

Remove the cover and install the modem on the back of the washer.

Save the small socket cover and screws in the event you need to remove the modem for some reason. The socket should be covered at all times.

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Install the Dryer Modem

If you’re installing both the washer and the dryer at this time, you might as well install the dryer modem now.

Remove the cover and install the modem on the back of the dryer.

Save the small socket cover and screws in the event you need to remove the modem for some reason. The socket should be covered at all times.

After installation is complete, plug in the washer, dryer, and monitor, in that order. Turn on the washer and dryer. Press and hold the SET button on the monitor.

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