Correct cycle. Get to wash dishes.

If the dishwasher is not starting the wash cycle after replacing the circulating pump, it is possible that there is an issue with the control board. You may want to check the wiring connections between the control board and the new pump to make sure they are properly connected. If the connections are correct, you may need to test the control board and its various circuits to see if there is an issue with any of the components. It is also possible that there is a problem with a sensor or switch that is preventing the dishwasher from starting the wash cycle. You may need to consult the dishwasher's user manual or contact Bosch customer support for further assistance.

Pre-wash may be compromised and a new power circuit board may be needed.
My advice: As long as the other cycles are accurate and work as usual; Pre-wash in your sink (spray off waste material) before you place the dishes in the washer and commence cleaning. Its best to wash off food and other material before washing in the machine to avoid clogging the drains and pump.

If there is no sound of the circulation motor then it is faulty. But if the circulation pump sound is coming but water is not circulating then you need to check the wash arms for blockage.

Refer this diagram for location of parts in wash system

http://spares.bigwarehouse.com.au/images/files/19975_6146c636e8211a1ecc4ecdc062082148.pdf

If there is no blockage, your pump may need to be rebuilt or replaced. If your machine uses a solenoid valve to control weather the pump is washing or draining. The drain valve may be stuck somewhat open, diverting wash water down the drain. Or the wash valve may be not opening fully. Different machines work in different ways.

this sounds like flow sensor failure,it it fails machine will either not fill up or fill and drain without washing its a cheap part to replace and is fitted downstream of inlet valve behind l/h/s side panel either attached to inle hose or heat exchanger.

Drain Pump

If the dishwasher is loud during operation, the drain pump might be defective or might have some debris in it. This is a common problem.


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Circulation Pump

If the dishwasher is loud during operation, and the noise is a continuous drone similar in speed to the circulation pump sound, it's likely that the circulation pump motor bearings have failed. Once this happens the circulation pump will have to be replaced, the bearings are not repairable.


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Drain Impeller

If the dishwasher is loud during operation, the drain impeller might be broken, or there might be debris in the pump. Generally, to gain access to the pump the top of the pump housing will have to be removed.


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Pump and Motor Assembly

If the dishwasher is loud the motor bearings, drain impeller or wash impeller might have worn out. All three of these components are part of the pump and motor assembly. It may be possible to replace one of the impellers, but the motor bearings cannot be repaired. In that case the pump and motor assembly will need to be replaced.


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Wash Impeller

The wash impeller is a small, plastic blade. The motor spins the impeller forcing water through the spray arms to clean the dishes. If one or more blades has broken off of the impeller the dishwasher is loud. The impeller can also scrape against the pump housing if it is damaged, warped or bent.


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Circulation and Drain Pump Motor

If the dishwasher is loud during operation, and the noise is a continuous drone similar in speed to the motor sound, it's likely that the circulation and drain pump motor bearings have failed. Once this happens the motor will have to be replaced, the bearings are not repairable.


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Water Inlet Valve

The water inlet valve is an electrically controlled water valve. When it is new, the water inlet valve is very quiet. Over time, the diaphragm inside the valve deteriorates and deforms. This deformation interacts with the water rushing in and can cause a loud vibration, buzzing, squealing or other noises. If the dishwasher is loud during the filling cycle, replacing the water inlet valve may solve the problem.

God bless you

It is likely the water circulation system is faulty. This dishwasher uses a single motor to run the water pump and the drain pump. If you hear the wash pump operate during wash cycle then it is likely there is a blockage in the water circulation manifold which distributes the water through the arms.

If you do not hear the pump operate during wash cycle then the sensor is faulty. The sensor tells dishwasher to switch to drain cycle from wash cycle.

Try following the diagrams at top of this website to get idea of parts.

check the water make sure the water is correct. fill water drain water and circulation water.
fill water comes from under sink, drain water from drain pump and drain hose ,circulation pump controls the water washing. let me know if this helps.

I have a Bosch Dishwasher and the E-Nr is SGS4362EU/03. The machine is approximately 4 years old, in good condition and has been working very well. Suddenly, there is water remaining after it completes a 50 degrees C wash cycle. This is also evident with the pre wash cycle and the 65 degrees wash cycle.

I have checked and cleaned the filters. I have loosened the internal pump white cover (Torx T 20 screw) and checked for any physical blockage - none. I have also checked for any drainage hose kinks - none.

I have tried a series of empty washes and the machine drains the water during the wash cycles. The dishes are also have a dull colour and show show signs of not being properly rinsed during the wash cycle.

Please assist.

Reagrds,

Brian

How to loose up the circulation pump