Did you load the appliances into the dishwasher after a family meal, turn on, but don’t hear the sounds of water pouring? Do not rush to sin on the equipment, the reason may be in the wrong connection or kink of the hose. Why the dishwasher is not picking up water and buzzing, we will understand this publication.
What caused the problem
A similar problem is typical for all PMM models: Ariston, Indesit, Veko, Siemens and others. Why is water not being collected or pumped into the machine? Consider the typical problems that a user may encounter:
- Lack of water in the water supply. So simple. It may be that a shutdown announcement hangs on your door, or there may be a problem. Open the faucet in the bathroom and check your guesses. If the water supply is all right, then proceed to the next step.
- The hopper door is not completely closed. If the lock does not work, then the water intake will not start. Press the door firmly until it clicks, after which the feed should resume.
- Shut-off valve closed. If no water is added, check the valve located on the water pipe. It serves for emergency shutdown in case of emergency. Perhaps it was blocked - then unscrew it.
- Twisted inlet hose. It could be pinched or bent, which prevents a passing stream. Restore the normal position of the hose.
- Weak head. This happens when the pressure in the system is not strong enough to enter the dishwasher. It remains only to wait until the normal flow resumes.
You checked everything point by point, but there is still no water supply? So it’s not a matter of minor problems. We will tell you what to do in this case and how to deal with the breakdown.
PMM technical malfunctions and their elimination
Let's start with the simplest - by checking the intake filter. If the water in the PMM "Electrolux", "Beko", "Krona", "Virpul" does not flow, the input filter is probably clogged. It is located at the junction of the inlet hose with the machine body. Due to the hardness and contamination of the water, the mesh is clogged and the flow is not poured into the hopper.
How to proceed:
- turn off the tap;
- disconnect the hose from the body (carefully, there may be water inside);
- using pliers (if necessary) get the filter mesh;
- rinse the part with warm water or soak for a while in a solution of citric acid.
Even if the supply has recovered after cleaning, do not forget to flush the filter once every six months. This will help to avoid problems with the equipment.
It is also advisable to install a flow filter. It softens and purifies water. This will help the heater (heater) to last longer without scale.
Problems with Aquastop
Does your dishwasher Siemens (Siemens), Hansa (Hans) have an Aquastop valve installed? Then the reason that water does not go and does not pump is probably in it. When a leak develops in the hose, the valve becomes clogged to prevent an accident. The protective mechanism cannot be repaired; replacement is required.
Want to make sure that Aquastop has worked? Look at the display. There the error code E15 will be displayed.
What to do:
- turn off the tap and disconnect the hose;
- look inside: if the valve is firmly pressed to the sides of the hose, it is in it;
- unscrew the hose and replace with a new element.
Door lock interrupted
The dishwasher door is equipped with a locking mechanism. By electronic locking, the lock prevents leakage. Check that if you don’t hear a click when closing, the lock needs to be replaced.
How to fix the problem yourself:
- pull the plug out of the socket;
- open the door and unscrew the screws holding the front panel;
- behind the panel you will see a locking device - unscrew the screws and remove it from its place;
- install a new lock;
- reassemble in the reverse order.
Inlet valve broke
Does the supply valve not fill water? The problem is determined by the buzzing of the pump, which is actively working, but the valve does not open, so it does not pump water. This part in the dishwasher is very sensitive to pressure drops: for example, Bosch models are designed for 1 MPa. Therefore, manufacturers recommend installing pressure reducing valves, which will help to avoid water hammer.
First check the part for blockage. If everything is in order, a complete replacement of the element is carried out. The valve cannot be repaired.
Damage to the level sensor (pressure switch)
The feed or fill sensor should measure the water level in the tank. How it works? The pressure switch is activated and sends a signal to the main module to stop the fence. The module sends a command to the intake valve so that it closes. However, if the sensor breaks, it may give incorrect readings. For example, it signals that little water has been pumped. Then the car carries out a fence in excess of the norm, and this can lead to overflow.
If you notice that the water supply indicator is on (blinking), but the flow is not coming in, it means that the sensor gives a command that there is already enough in the tank.
It could be this: the control module, having received a sensor signal, “thinks” that the system is not supplying water. Therefore, it slows down the operation of the PMM and displays a fault code on the display.
How to fix the situation? Replace the pressure switch:
- Disconnect the machine from the network and communications.
- Turn it on its side.
- Remove the cover from the bottom (if any).
- The pressure switch is a plastic box.
- Using pliers, lift the handset off the box.
- Remove the two screws.
- Remove the sensor and check for debris.
- To test the performance, measure the contact resistance with a multimeter.
- Install a new item.
The electronic module is out of order
The control board manages the processes in the dishwasher, gives commands to parts and assemblies on switching on and off. If there are problems with the module, you may notice incorrect behavior of the PMM. For example, the Water and End buttons on the panel are lit. That speaks of an attempt to fence - and then about its end. Therefore, the technique does not pump water.
Unfortunately, you won’t be able to fix the board yourself. But you can inspect it for damage, and then contact the service:
- open the hopper door;
- unscrew the bolts at the ends and the back;
- open access inside - there you will see the board.
If you notice burnt wires, contact the master. There is no need to do anything further so as not to damage important parts.
Most problems with the dishwasher can be eliminated with your own hands. Proceed sequentially and adhere to our recommendations if your PMM does not pour water. Watch the video on the topic: