Aquasensor in the dishwasher - what is it and what is it for? The answers to these and other questions in our article.
Models of dishwashers are equipped not only with a standard set of programs, but also with additional functions and technologies. New developments by manufacturers make it easier to use equipment and save your time. Increasingly, in the PMM there is a sensor of water purity.
Aquasensor working principle
An aquasensor is a sensor of purity or turbidity of water. It allows you to significantly save on the consumption of resources, because it determines the level of pollution. The device picks up particles of dirt, food debris, scale.
Water quality directly affects the readings of the Aquasensor. If it is stiff, contains many heavy impurities, then the quality of washing dishes will be worse, and resource consumption will increase.
The sensor includes an infrared LED and a phototransistor. There are elements on the board, opposite each other. On top of the product is closed with a plastic case, which is curved in the shape of the letter U.
How does the device work? Simple enough:
- The LED sends an infrared beam.
- The beam passes through the housing and meets the phototransistor.
- When determining the turbidity, the sensor gives a signal to the electronic module.
- The machine drains the waste liquid, pours a clean one and repeats the rinse cycle until the sensor gives a signal that the water is clear.
If the turbidity is exceeded, the beam from the LED will not penetrate the phototransistor. The control board will not receive a signal and will issue a rinse command.
The Aquasensor also detects detergent residues. As a result, the machine shortens or extends the cycle as necessary, which saves up to four liters of water and effectively launders dishes.
If plaque forms on the sensor, its sensitivity is reduced. Therefore, salt is recommended. It attracts heavy impurities, improving the quality of washing.
Additionally, you can adjust the level of water hardness in the dishwasher (if there is such functionality in your model), which will improve the work.
How to replace the turbidity sensor yourself
The aquasensor can be replaced or cleaned independently.
To do this, follow these steps:
- Open the hopper door.
- Remove the screws around the inside perimeter.
- Close the camera and remove the external panel from the door.
- Remove the screws and remove the inner plate (for built-in machines).
- For freestanding equipment, it is enough to open access to the bottom, remove the bottom panel.
- Open the hopper, remove the drain filter.
- Remove the bottom sprayer.
- Remove the screws around the perimeter of the filter seat.
- Flip the PMM to the back.
- Disconnect the wiring and hoses from the circulation pump assembly.
- Remove the assembly from the mounts.
- Disconnect the wires from the aquasensor.
- Wring out a clamp and get the sensor.
- Install a new part.
Today, more and more manufacturers are trying to equip the equipment with sensors. You can meet a similar development in the "Bosch", "Siemens", "Electrolux" models. Aquasensor is called the Ecosensor in the Milli (Mile) dishwashers, and the Sensor System in the Hotpoint Ariston. Keep this in mind when studying the technical features of machines.
Aquasensor can be installed in full-size and compact models. In this case, you can save on the use of electricity and water. After all, the technique will not once again start rinsing.
Now you know the features of the replacement and the principle of operation of the turbidity sensor. Sometimes additional developments can improve the efficiency of the PMM, as well as help you save money. Watch the video on the topic: