Among the options troubleshooting a problem when a dishwasher instead of washing in the transition mode, constantly drains the water is the most common. Most often this is caused by the occurrence of leakage. Before we proceed to search for specific causes and remedies necessary to ensure the presence of leaks.
There are several characteristic features, which will allow to establish the existence of such a defect. The majority of them relates to a device equipped with an electromagnetic system Aquastop, which today are the most common, such as Bosch and Electrolux. Besides the constant transition into the drain mode and the characteristic noise from the operating pump, the dishwasher:
- display the code for the fault on the display, which is easy to decipher at the instructions;
- cease to respond to commands from the control panel;
- It will not respond to attempts to recover after a reboot;
- to pour water into the tray.
Problem Cause
The presence of all these characteristics or certain of them confirms the leakage of water is almost 100%. When found necessary to establish the cause of the leak. There may be several:
- AQUASTOP fault;
- breakage of the water supply valve;
- failure of the control board;
- cracks in nozzles or tank;
- oil seal wear circulation pump.
fault AQUASTOP
Bosch dishwasher or its analogues from Electrolux equipped with electromagnetic AQUASTOP, where, besides the valve is provided with a float pan and overflow sensor. During filling sensor is triggered, which stops the water supply and starts the pump for pumping. Failures may occur during actuation AQUASTOP or the formation of scale on the float that urges it to the sensor. In order to eliminate the defect must be:
- turn off the power;
- stop the water supply;
- push the unit on space for easy manipulation;
- tilt machine to pump water from the sump.
If it's only triggered AQUASTOP need to replace the water supply hose. After installing a new device you need to run in test mode. During normal operation switch to normal operation.
Detection of scale will require its removal, to restore full functionality.
Breakage of the water supply valve
Another reason for such a situation could be a faulty inlet valve. When starting the washing valve receives the signal and starts the supply of water, the opposite signal should lead to its closure. When this happens, the water continues to flow, the pump is periodically switched on to pump out excess liquid. Check operation of the device as follows:
- shut off valve;
- after termination disable operation of the pump power;
- We provide access to the place of connection of the inlet hose;
- disconnect it from the machine;
- check the electrical part of the meter valve.
If the meter readings are not correct (500 - 1500 ohms), you need to replace the valve. After installing serviceable analog, as in the previous case, we conduct a test launch, and we see the machine working.
management fee
Signals at the work machine filling operation and the subsequent drain fed to the control board where positioned relays or triacs pump. When a malfunction occurs in a program crash. This is a more complex failure, the elimination of which requires special knowledge and experience.
Cracks in nozzles or tank
Permanent followed overflow drain may be precipitated cracks in nozzles or tank. In this case:
- the water level is constantly increasing in the hopper;
- upper drain valve rises, it passes into the sump;
- a tray sensor is triggered, the triggering drain.
Eliminate breakage only by replacing the damaged member. This will require to disassemble the machine to identify the location of the leak and carry out the replacement.
Wear circulation pump gland
The circulating pump provides a forced current of water in the machine. Wear its main gland not cause overflow, but can lead to a characteristic failure under certain conditions. In most cases the pump is not folding and stuffing boxes are not separately available. Therefore, the replacement pump is performed entirely to restore the device performance.
Not always reasons for inoperability PMM can identify and correct yourself. Many of the failures require a professional approach, the presence of special tools and equipment. In their absence, it is not necessary to try to find an answer to the question of what to do on their own, without professional invitation. Trying to save on small things, can cost significantly more expensive services center service and result in the need to purchase a new device.
