Often the cause of failure in the automatic stiralki malfunction of the water level sensor. This is due to the fact that the pressure switch washing machine affects the operation of the control module. Problems with the water level sensor can be eliminated independently.
Pressure switch for a washing machine is designed as a small plastic pill. On one side of the tablet is a connector for connecting wiring, and a small tube end. Pressure switch in the washing machine is connected to the control module using the wiring and to the tank through a tube.
The principle of the sensor is simple. Automatic washing machine tank is sealed: When water bay air under pressure is supplied through the tube into the hermetic chamber pressostat installed membrane.
Due to the pressure in the chamber, the membrane closes the contacts, the conducting electric current.
When voltage is applied to the closure of the control unit. If the sensor is not working, the control unit can not determine the water in the tank.
Setting the pressure switch
To supply the correct amount of water in the washing machine tank sensor must be set correctly. Configuration is performed by the manufacturer, but having experience in the repair of household appliances can be adjusted independently pressure switch.
If the washing machine is under warranty, send the unit to a service center.
Adjusting water level sensor in the washing machine is carried out by means of adjusting screws. It sets the time of the closing and opening of the contacts. Adjust the sensor is only necessary with the device disconnected from the mains. During setting in the tank cars should not be water.
Adjustment is made by turning the adjusting screw gradually. At a time it is recommended to rotate the screw is not more than half a turn. After each turning close the protective cover of the washing machine and turn on the water supply program.
Adjust as long as the liquid level in the tank has reached optimum. After the sensor configuration lock screw is sealed in the socket structure. This will prevent spontaneous cranking due to vibration during the spin cycle.
Check sensor
To check the pressure switch washing machine, steps in order:
- Stiralku unplug from the mains to eliminate the risk of electric shock.
- Remove the top cover of the machine. After unscrewing the fastening bolts slide cover toward the back wall, and lift upwards.
- Find the pressure switch on the top side or back of the unit.
- Disconnect the wiring connector of the sensor. It is fixed in a special seat latch.
- Remove the hose attached to the tube.
- Loosen the bolt and pull outward.
- Connect the tubing a short length, the appropriate diameter.
- Blow firmly into this unit through the connected hose.
If you have contacts within the pressure switch triggered, you can hear the clicks. If there are no clicks, the sensor is not working and must be replaced.
Check the operation of the device a multimeter. For this we first explore an electrical pressure switch and circuit terminals to define one group of contacts.
Set the multimeter to measure resistance in the regulator mode and blow into the hose connection. When the air pressure change indicators on the meter must be changed. If the meter does not show changes, replace the sensor.
The machine may not operate properly due to clogging of the air tube from the tank to the sensor. To solve the problem of the hose is sufficient to wash under running water.
Malfunction tends to weaken the attachment of the hose to the pipe. Air is leaking and the pressure in the chamber is not enough to trigger the pressure switch.
Common Problems
About the failure of the water level sensor is most often indicate faults:
- wash cycle begins before stiralku plucked in the water. When you turn on the washing control module includes a heater for heating the water. Without water in the tank heater to overheat and burn out.
- wash water is dialed is not enough or too much. The control module can not close the inlet valve due to a faulty pressure switch. This leads to leakage of the machine and the room flooding.
- After spinning the laundry remains wet. Water from the tank is not completely drained after the washing cycle.
- At the end of the session the water is not running out of the tank and the machine does not open the hatch. Pressostat not control module sends a signal to the presence of water and the module includes the drain pump.
- Stiralka does not work and the display shows the error code. This is only possible for machines with self-diagnosis. Decode the error code to find the broken part.
Replacing the sensor with your hands
If the water level sensor is not working, it must be replaced. Disassemble and repair it will not work because of the whole body. New pressure switch must be identical to the old one.
Set the sensor:
- Screw the new device screws in the intended place.
- Connect the hose to the tube of the device and to clamp of the appropriate size. Before connecting the hose, inspect it for damage. It is important for tightness.
- Connect the electrical wiring.
- Install stiralki and secure with screws designed top cover.
- After installation, check operation by downloading and running the laundry washing.
The state of the pressure switch is very important for normal functioning of the automatic washing machine. In the event of breakage of its parts have to be replaced. Do not use the machine with an inoperative sensor, so as not to provoke serious damage.
