SOURCE: siemens hydrosensor dishwasher SE25A091GB/22
Paul
If you are still trying to sort out this issue try the following.
From what you say then it is most likely the aqua sensor on the side of the dishwasher. The gurgling sounds that you hear are likely the drain pump running and the un-drainable water sloshing in the sump.
Verify that there is actually water going to the dishwasher( Basic step but often overlooked)
Next the inlet valve will have to be checked. This is the part where the water line from the house connects to the dishwasher, under the toe/kick panel. Remove power from the dishwasher. Disconnect the dishwasher electrical connections (2 wires) to the inlet valve and connect it (carefully to 110 V power) using a jumper wire. With 110V power the valve should open and water will flow into the dishwasher, if not then the fault is in the inlet valve.
If this checks fine then the fault is likely in the aqua sensor...
On the outer left side (viewed from front) there is a panel, Behind this panel there is a small clear(of light blue) plastic mechanism with hoses and wires attached( There is usually a yellow disk at the top about 6cm in diameter) this is a float and sensor assembly there is tells the control the water level and works as an emergency drain if there is an issue. There will be a red stick protruding downward to the base and a Styrofoam float on which the stick rests. This is a pan overflow sensor if the stick is too high the unit will go into drain and cut off the fill valve power. The yellow disk is a diaphragm which senses water height. This unit can become stuck with wear and hard water.
SOURCE: frigidaire fdb1050rem2 dishwasher will not drain during was cycle
Checked water temperature at water heater. It was at 110 degrees. Turned water heater up to 125 degrees. Dishwasher works perfectly now.
SOURCE: kenmore dishwasher has loud noise during fill.
This isn't a solution but rather a comment, if the problem is happening only during the fill, then it could be the water inlet valve. Perhaps there is a soliniod going in the valve, watch to see if the fill cycle starts to dimminish over time. Does the sound come anytime the washer fills, ie: rinse cycle? if so I would replace the valve, probably 50 dollars would get you a new one and you can do it yourself to save a little more cash. good luck.
SOURCE: Bosch dishwasher timer sticking
I have been told to replace the timer which I am looking to do the same to my machine!
SOURCE: My dishwasher won't switch off
Hello,
Welcome to FixYa.
Based on your description I'd say the issue actually is with the control...unfortunately. This is commonly associated with a heating fault on Bosch built dishwashers ( various models including Bosch, Thermador, Siemens, Gaggenau, and Neff ).
Since the issue is likely within the electronic timer/control, specifically the heater relay solder joint. ( a faulty flow switch, ntc or heater can also cause this, but not very probable ). These are the steps you'll need to follow to resolve it or at least investigate.
If you feel capable of checking this on your own, there`s a way to visually inspect the control yourself...it really isn't very complicated.
It will require you to remove the control from the unit and then remove the control from it`s plastic housing and look for a burnt solder contact on the printed circuit board. 
The culprit will 99% of the times be one of the pins from the heater relay,
**Flip this over and inspect the solder joints, it will be obvious when you see it.**
hence the unit sit`s and takes longer & longer to finish because it can`t heat to advance or unless the 2 buttons for "cancel" are pressed...this can also manifest as a long cycle time as I mentioned and eventually display's "1" on units with a display and usually very poor cleaning, no heating ( don't be fooled by the homes inlet hot water temperature ) as a result.
You can also run the unit through a regular or econo cycle ...any cycle with the exception of rinse & hold, and with the door panel removed place an ammeter on the gray/black wire it should draw 11 amps during the wash cycle...after it fills and the flow switch indicates it has adequate water to engage the heater.
i.e. ( this may differ from your specific model, but the same rules apply )
**My Opinion - if you or someone you know is proficient at soldering, a lot of times it can be remedied by simply repairing the solder...but it has to be done well...or it will not last. Bosch recommend`s replacing the control and I don`t pretend to speak on their behalf nor do I profess to know better. This is just my experience (it work`s) and my opinion (why buy new if one can repair ?)
**Please disconnect the power or turn off the breaker before attempting any service to the dishwasher.**
If you do not feel comfortable attempting this service, call a local pro, preferably one familiar with Bosch/Thermador/Gaggenau/Siemens, to service your machine.
Thank`s for visiting "FixYa" for your repair inquiries. Please take a moment and rate this solution to it's helpfulness.
Good luck.
Regards,
Macmarkus :)
Hi
Thanks for using FixYa. If the cycle doesn't
complete, then the first thing that should be checked is the Timer and then the
heating element. Timers don't often fail. But if every other part of the
dishwasher seems to be working properly and the timer knob seems to be stuck in
one place--doing one function continuously--the timer may be at fault.
Dishwasher timers can't be repaired. If yours is defective, replace it. Many
dishwashers heat the wash and/or rinse water to a higher temperature, as the
cycle calls for it. In these cycles, the dishwasher pauses after it has filled
with water, waiting for the water to reach the pre-set temperature. What
happens next depends, as follows: On some units, the pause is timed and the
unit continues after the allotted time. On others, the cycle can't continue
until the water reaches the higher temperature. If you have this type of
dishwasher and the water isn't being heated (say, because of a problem with the
heating element or thermostat), after the unit stops at the heating cycle, it
never continues. When you repair the heating-system problem, the "cycle
problem" is fixed too. Please accept the solution if the
issue is resolved or post a comment for further assistance.
Thanks
Rylee
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