Process Technical Information - LG WM0742H Series Training Manual

TRAINING MANUAL

PROCESS TECHNICAL INFORMATION

1. Standby
2. Water Supply
3. Soaking
and
Washing
4. Heating and
Washing
5. Washing
6. Draining
7. Sensing
Eccentricity
8. Intermittent Spin
WM0742HGA
* The washer is plugged in but turned off.
* Drum rotates and fill begins after a cycle is selected.
* If PREWASH is selected, cold water is supplied via the
PREWASH valve.
* To facilitate wetting action, the load is tumbled
clockwise and counterclockwise.
* If the water level is insufficient, the control board will
continue to supply water until the correct level is
reached.
* The heater heats the wash water in the tub and the drum
rotates for washing.
* When the selected water temperature is reached, the heater
is turned off but the drum continues to rotate.
* If the water temperature drops below the specification for
that wash cycle, the heater will be energized again.
* FUZZY LOGIC determines the wash time according to load
size, water temperature, and other factors.
* The drain pump drains the water from the sump.
* Spin starts after the pressure switch indicated the water
has been drained.
* In cycles with hotter than usual water (Allergiene
Sanitary cycles,) a cooling process is performed to lower
the water temperature for safety and to avoid damaging
the laundry.
* The hall sensor is used by the microprocessor to determine
eccentricity. It starts and stops the tumbling to redistribute
the load.
* If the eccentricity is not resolved, the control board repeats
the process. If the process is repeated several times without
success, the machine stops and displays UE (Unbalance
Error) on the control panel.
* To set the correct spin speed, the motor spins the drum
clockwise until it reaches the set spin speed.
* If the water level frequency is lower than 23.0 kHz, the
control board interprets it as an oversudsing event and
starts the desudsing process.
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WM0742HGA
®
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TRAINING MANUAL