Regardless of whether the dishwasher is still under warranty or not, any of them can stop collecting water for no reason. And there can be many reasons for this. If water does not flow into the Bosch dishwasher, which you purchased no more than a week ago, it makes sense to simply exchange it in the store for a new one. If her warranty has expired, you still will not be repaired for free. So maybe then it makes sense to look for the cause yourself, and having found it, eliminate it yourself, thereby saving a considerable amount of money?
What does it mean "no water comes in"?
Until water begins to flow into the capacity of the dishwasher, none of the subsequent cycles of its program will work. All is correct. The sensor does not detect the presence of fluid in the unit, and the automation will not start the program. Yes, and why? The machine can’t wield air.
But the owners of the units are more interested in the question, does not the fact that the water does not enter the dishwasher indicate a failure of the main processor itself? Indeed, in order to replace it with a working unit, the service center will take the board almost the same as the cost of the device itself. But do not panic. The microcircuits on such devices are reliable, most likely the matter is either in plumbing, or in some kind of “wires”, as craftsmen like to put it.
The main reasons that water refuses to fill the dishwasher
Most often, the reasons that water does not enter the dishwasher are:
- Sensor failure on the door locking mechanism. There is no contact, the circuit is not closed, and, as they say, "the train will not go further." The processor will think that the door is still open, and will refuse to draw water.
- Failure of the water intake sensor. Although rather it can be called the "incorrect" work of the pressostat. If he sends some intermittent and incomprehensible pulses to the processor that he cannot decrypt, he will not draw water.
- Clogged water purification filter. Sometimes it happens. A blockage has caused a blockage, and water does not enter the dishwasher or is barely flowing. In this case, the unit will also refuse to work.
- Intake valve failure. At first, after connecting the machine will not work if it is connected incorrectly. In this case, you need to double-check everything and do it again according to the instructions.
All these malfunctions can be eliminated with one's own hand, the main thing is to find what the root of evil lies in, that is, to identify the reason why water does not enter the dishwasher. Of course, it happens that the control system fails, but these are quite rare cases, and here, in reality, only the service center will help, because on your own you can only replace the panel with a new one.
It is unlikely that a person who is not knowledgeable in electronics will be able to repair the panel. In addition, in order to unsolder any microcircuit, special devices are needed that are not found in the average citizen. But we will not guess, we will first inspect the unit.
We are looking for a reason
In general, in structure and principle of operation, each dishwasher, regardless of brand and manufacturer, is similar. Therefore, regardless of whether water enters the Electrolux dishwasher or a different brand, the process of finding and eliminating the root causes is always the same. And start this search with the most trivial actions:
- check the intake valve, maybe it is blocked;
- determining the presence of water in the water supply system;
- checking the tight fit of the door.
If the inlet valve is open to full, the water in the tap flows, the door is closed tightly, as it should be, and the water does not want to be typed anyway, we proceed to search for more hidden problems.
Sensor failure on the door locking mechanism
Anyone can immediately distinguish how the door was closed before and how the lock works now. If there is no characteristic click and the closure is sluggish or not complete, then all the salt in the castle. It is easiest to order a part in a store and replace it yourself by dismantling the unit door. As a rule, such locks are not subject to repair, they are simply replaced with new or used ones, but so far functioning.
If the door gives a click and the door closes perfectly, and the water does not come into the dishwasher anyway, we are looking for a breakdown elsewhere.
Clogged filter on the supply valve
It often happens that the Indesit dishwasher does not get water because of the usual clogging of the inlet filter. To diagnose this breakdown, you will have to move the machine away from the wall and, having previously shut off the water supply using a shut-off valve, unscrew the water supply hose to the machine and inspect the filter mesh.
Often excessively hard water leads to the formation of persistent blockages. If a blockage is detected, clean it and tighten the hose in place to start the program. If the water has gone, the repair is over. If not, look for a reason further.
Intake valve failure
The intake valve resource in branded models is very large, but sometimes steel breaks, as a prose writer would say. And with the inlet valve, the same problem as with the lock on the door. This part is not being repaired, but is being replaced with a new one. It can also be ordered in the store or on the Internet and changed yourself. Or you have to take the machine to a service center.
Pressure switch (water level sensor) and main control processor
So, water does not enter the dishwasher, the reasons related to the plumbing were discussed, electronics remained. Alas, this issue is only solved by replacing parts. But before deciding on this replacement, a diagnosis should first be made. An expert in radio engineering doesn’t need to ring details, but for this you need to know the indicators that this or that detail gives out, being in an operable state.
Each brand of the dishwasher has its own sensors, and they glow on the multimeter in different ways. Only a specialist who is knowledgeable in these matters can diagnose a breakdown of the pressure switch, or, again, will have to take the unit directly to the service center. With the control panel the same song. Schemes for them in the free distribution can not be found. And blindfold will be useless.
Conductor ring
Sometimes in the cars the wires themselves go out of order, which go from the sensors to the control panel. If you are not too lazy to mess around, you can move the machine away from the wall, giving access to the back wall, disconnect the unit from the mains and water supply, and remove the back wall by unscrewing the corresponding fasteners using a screwdriver or screwdriver.
It is not difficult to find the water level sensor through the wires that go to it. Armed with a multimeter, set it to a simple dialing and ring all the wires in turn, not only from this sensor, but any wires that catch your eye and seem suspicious from the node to which they are going to the soldering to which they come to the panel board management. If you find an unsuitable, unbroken wire, replace it with a new one.
If desired, you can make a call by disconnecting the plugs from the panels and sensors. Maybe the problem lies precisely in them. Sometimes copper contacts can oxidize and become unusable due to high humidity. In this case, it is worth checking everything, stripping and, having connected all the plugs to their places, reassemble the machine, connect it to water and power supply and start the program. If it all worked, you are well done. If it doesn’t work, then - well done anyway. At least they tried. But now call the service center.
Conclusion
There is a non-standard reason why water does not flow into the dishwasher. For example, some kind of capacitor or resistance on the control board is out of order. Maybe some other contact you didn’t notice was gone. You can learn about another non-standard reason from the next video.
It happens that the door mechanism latches, but it still is not all right with the electronics. There is only one verdict. If no water enters the Bosch dishwasher (or any other) and the reasons are not in the plumbing and the problems listed above, then otherwise you are powerless. Call the wizard. He will find everything and fix everything.