Dishwasher device resembles a washing machine. The difference is small: water is used several times, splashing with a rocker, filtered, again being fed to the recirculation engine from the sump. Regular readers are not surprised that they put a pressure switch, a drainage pump in the dishwasher. Since the inside is dirty, more problems arise than with washing. Why does water remain in the dishwasher? That is the question!
The principle of the dishwasher
Copying the washing process, in the dishwasher water enters, bypassing the inlet valve. Single node. Water fills the tank, touching the level of the lower waterproofing of the door, sometimes heats up, is pumped by a recirculation pump through the pipe in the rocker arms. Rain streams washing dishes, separate holes are directed to create a rocker torque. Movement occurs.
Water is collected at the bottom of the compartment, a coarse and fine filter cascade passes, is collected by a settling tank, according to the program is fed again. After completion, the drainage pump discharges the dirty stream into the sewer.
The cycle of the cycle monitors the pressure switch, the heating element heats up the water if necessary, the solenoid valve adds softening salt according to the sensor reading set by the regulator. Powder, other means fall asleep in the dispenser of the door, as the need arises are thrown into the working chamber.
We add that the pressure of the pressure switch is taken in two places:
- On the side tank of accumulation of water during the recruitment period( preheating).
- In the sump, control the level during descent.
It is clear that the central board is free to use information in various ways.
Dishwasher does not drain: causes
The first common cause is clogged filters. To an inexperienced spectator it seems: the gaps are large. In practice, following the rough stage, there is a thin one; it is almost impossible to see the size of the holes for a person without a magnifying glass. Is that the light. Harder to have the owners of Whirlpool, there are those in Russia. To remove the filter, it is necessary to disassemble the impeller subsystem, first removing the lower one, undocking the plastic segment of the water supply. After that, you can somehow remove the lid of the sump with filters.
Clean the filter, rinse with running water, try pumping out. You can manually fill the working chamber with a pair of glasses. After turning on the dishwasher, detecting the presence of water, will try to get rid of, turning on the pump. The convenience of equipment, unlike washing, is obvious: the drainage pump is relatively easy to dismantle. It is recommended to remove the lower front panel. Access to the pump will be from the bottom. Do the necessary operations.
The drain pump is held by a pair of screws, in the case of Whirlpool there will be a Torx. The mechanism resembles what is seen in the washing machine:
- The asynchronous motor is equipped with a pair of coils at the base.
- Rotor magnetic with multiple poles.
- Impeller cross, due to centrifugal acceleration pushes water to the periphery of the cochlea.
- Power supply 230 volts.
Check if the impeller of the pump is spinning. Rotates tightly, immediately by a quarter( half) of turnover, jerking( synchronous motor).Coils ring, nominal about 200 ohms. Easily check out the mechanism by connecting to a 230 volt mains. We remind you again: the launch mode is individual, indicated in more detail by the unit body. When dismantling the pump, water will surely pour down. There are no emergency measures in the dishwashers, the volume is small, inferior to washing( devoid of Aquastop).
In most cases, the pump coil is wound by hand. The cost of a new part begins with 300 rubles. Should I waste time, decide for yourself. In the future, the rotor can be adapted for improvised constructions.
Water remains in the dishwasher - the pressure switch is to blame. Both pressure selection chambers are made so that water, food pieces do not fall inside. Only air. The sump pressure tapping chamber is held on one or two screws and removed. You will see a small plastic box, put the bottom up. You will notice from under the bottom: a transparent pressostat tube fits into the pressure chamber. Using pliers, remove the yoke, dismantle the plastic part.
It happens that food gets clogged inside, the pressure switch reading is wrong, the water is not pumped out, even if the liquid has filled the sump. The tube is sterile clean. Disconnect from the pressure switch, purge. Then you should reliably check the operation of the pressure sensor( level).From the side of the pressostat the tube clings back. Blow to hear a click.
Please note: the water of the settling tank is constantly moving, the level is changing. From here, a recirculation pump collects the fence. To avoid constant clicks of the pressure switch, the path is made with a time delay. As a result, the number of operations decreases.
A click will be heard with a delay of 1 - 2 seconds. Blow wait. Sound is heard - all the way through. The second channel, from the side of the intake tank, works without delay( avoiding to gain too much).We suspect that for this reason it was necessary to embed two sensors, when logic prompts: you can do with one. Check out the second: who knows the logic behind the dishwasher’s operation of a brand. After checking the mechanical part, the time to explore the electrical has come.
With a tester in hand, with tubes in your mouth, we begin to call contacts. If a response is detected in the form of a decrease in resistance to zero, we consider the operation to be complete. There are other reasons why water remains in the dishwasher. There is a blockage in the drain hose. Check the drain by undocking from the pump.
A dishwasher is constantly trying to flush out the collected water.
First, the problem lies in the leakage microswitch pushed by the float valve. The mechanism is hidden by a pallet, easily tested. Ring the winding in the lower, upper position of the float. The result is different( open-circuit).If there is indeed water in the sump, try to figure out the path that the fluid has enteredEliminate leakage. Drain the fluid, drain the pan, try to start the dishwasher again.
The second reason is more trivial. The water outlet point of the drain hose is located below the filling level of the tank - spontaneous descent will occur. Installation instructions indicate the main dimensions, check repeatedly.
In Bosch dishwashers, the amount of water collected is measured by the duct sensor. The sensor stands next to the intake valve, shows the amount collected. The duct sensor is faulty - the dishwasher will constantly drain the water. Electronics is powerless to understand what is happening. Gained one amount of water, fixed more. The pump drains a part - the level sensor signals: there is not enough liquid for the cycle. If there is a situation of constant water drainage, check the flow meter following the inlet valve.
Listed the main types of faults associated with the set and discharge of water. Check the efficiency of the pump without dismantling. Impeller is visible from the filter compartment. When plugged in, the dishwasher starts to drain. Several attempts are made, 2 - 5. By rotating the blades, assess the completeness of serviceability. In parallel, it does not prevent the tester to measure the presence of voltage. Specify technical details yourself, access from the bottom.
Both pumps exploit the action of centrifugal force, create such pressure that the jet of the rocker leaves, acquiring a speed of 150 km / h. The drainage pump just drains water through the hose into the sewer. Most dishwashers are equipped with a means of displaying error codes. The manual lists the value of the alphanumeric sequence. Otherwise, you can search the Internet for these purposes.
In rare cases, the main engine fails. The cycle seems to continue according to the indications of the sensors, the water of the rocker arm does not splash. We believe the error codes will be more eloquent. Look through the manual carefully. Look, take the trouble to find information on the mode of self-control. As a rule, debugging start helps to determine the performance of parts.
This should have been started, then why write a review about why the dishwasher does not drain the water! We hope that the story is informative, we thank network enthusiasts who translate foreign videos into Russian, foreign service and distribution centers for creating an instructive film about dishwashers. Recall, everywhere we try to show home appliances from the inside, so that readers do not just pick appliances, but understand the meaning of the action.