Functions And Operations Of Pressure Sensor - Daewoo MINI Series Service Manual

Wall-mounted front-load washer

Table of Contents

5. Specifications, Operation, and Defect Inspection of Water Level Sensor

1) Specifications

O/F: Water level at which the water must be drained

due to excessively high level. Water supply is

suspended and water drained until the level drops to the

reset level.

Model

Part Code

DWD-M301WP 3614825320

DWD-M300WA DL - DW12 - H

2) Functions and Operations of Pressure Sensor

After the water begins to be supplied through the inlet

valve of washer, the tub is filled with water. The rising

water level in the tub delivers the head pressure

(mmH20), which passes through the pressure delivery

hose between the tub and pressure sensor to the

enclosed space. The pressure is transmitted to the ®Á

diaphragm, which rises as the pressure increases. The

delivered pressure immediately leads to the ®Ë metal

core. As the metal core rises into the ®ÈCOIL-ASSY

that is rolled in a specific format, the condensers and

resistances connected to IC- 4069 buffer, a frequency

oscillation circuit on C-MOS inverter using the

induced electromotive force and magnetic force according to the contact of coil, are oscillated through RC, which

leads the SIGN wave in frequency from the inductor to pass through the outlet buffer to be transformed into digital

signals and transmit a square wave to display the oscillation cycle in a frequency format.

The frequency signals predetermined in the set play switching functions to control the head pressure in the tub.

After the wash cycle is complete at the preset level and the water is drained, the head pressure declines to return

the metal core to the original condition, enabling the repetitive application of function during the cycle.

Table of Contents

Mini 1.0 Mini 1.5