Dishwasher stuck on "drain"

That is the classic behaviour of a flood sensor being wet. You said 'anti flood float'. I know them as a small sensor in a tray under the machine and above the floor in a plastic pan. If it is that where your float is, then you need a service call to diagnose. It is likely to be a circuit board issue and they are expensive so need proper eyes-on trained diagnosis.

Taken From the Manual (https://media3.neff-international.com/Documents/9000816278_I.pdf)
If the appliance stops during dishwashing or does not start for no obvious reason, first run the Abort
programme function (Reset).
Terminating the programme (Reset)
1. Open the door.
2. Press START button 9 for approx. 3 sec. until all displays go out.
3. Close the door.
The remaining programme sequence for draining the residual water takes approx. 1 minute.

Bosch E25ErrorThe drainpump is blocked or restricted by debrisPossibly something stuck/jammed in the wash or drainpropeller, remove filter mesh at the bottom of the dishwasher. Carefully remove any excess water and debris jammed near the propeller caution there may be glass or debris near or where thewater drains-out.Remove and clean the sprayarms, they may have food debris jammed, rinse in hot running waterMaintainer Wash Run a wash with a tablespoon of powder, without any dishes on thehottest setting e.g. intensive, 65C, if you have a 70C this will be moreeffective.It can bequite common for a dishwasher to not drain because either the drain hose or theair gap (if the unit has one) is clogged up. Drain hose clogs commonly occurwhere the hose is attached to the main household drain line, or where the hoseconnects with the garbage disposer. Turn mainswater off and disconnect mains power Tryremoving the drain hose to unclog any debris. Don't forget to reattach the hosebefore you start your dishwasher again.The drainpump is blocked or restricted by debrisPossibly something stuck/jammed in the wash or drainpropeller, remove filter mesh at the bottom of the dishwasher. Carefully remove any excess water and debris jammed near the propeller caution there may be glass or debris near or where thewater drains-out.Remove and clean the sprayarms, they may have food debris jammed, rinse in hot running waterMaintainer Wash Run a wash with a tablespoon of powder, without any dishes on thehottest setting e.g. intensive, 65C, if you have a 70C this will be moreeffective.Turn the main water supply and main power offE15 error means the anti-flood system as activated; you havehad an overspill of water into the base plate below the sump.

If you take the kick plate off from below the door youshould be able to access the base to remove any excess water.Behind your kick board is a plate below the door. Remove theplate.
With the power off push a rag into the base plate to soak up the water.
Failing that pull out the dishwasher onto the floor and tilt the machine backto allow the water to run outSwitch the water and power back on and restart the programto test.If the appliance is less than 2 years old Neff/Bosch Groupguarantees it

Hi Jeffrey,

This depends what you mean by "runs". If the dishwasher continues with a wash cycle - i.e. circulating water - with the door open, the simple answer is that you have a defective door microswitch.

However, I suspect what you perceive to be the dishwasher running, is actually the drain pump running continuously. This happens when the anti-flood protection system has been activated and continues even when the door is opened. The simplest way to check is to open the door (while it's "running") and pour some water into the tub. If the water drains away immediately, this shows the drain pump is running and the anti-flood protection has been activated.

This may be due to water having leaked into the base of the dishwasher, but it could be as simple as a stuck or defective float-switch.

Please try the simple test above then post back for further assistance. If you're planning to investigate or repair this yourself, you're going to need a Torx T20 screwdriver and a multi-meter would be useful as well.

Regards, BElectric

Hello,
The water which has activated the antiflood device is actually underneath the appliance it is held in the sump tray and this has to be drained before the A.F.D.will cancel.You will have to remove the dishwasher to get at the underneath but when you have got rid of the water you will still have to trace what caused it.The seal on the circulation pump could be a suspect or a pin hole in the drain hose.

Hope this helps.

This is caused by a water leak into the base pan,it will trigger the anti flood and the machine will continously drain out even with the door open,you need to establish what is leaking,if you leave the appliance standing for a few days it will start again as the water will evaporate however if the fault returns you will definetly have aleak on the appliance which will require further investigation.

Our Neff Dishwasher S5456X0 the pump was running all the time and the solution 1 worked. We removed the front panel under the door and the the flood camber was full of water. Drained it out with a sponge and the dishwasher is fine. Thanks

First try disconnecting the unit, completely from any power, for an hour or more, look in any control doors or access points for a small battery mounted to a board or in a holder, if you find one, take it out also, noting the positive and negative orientation.

If that doesn't do it, there are reset buttons under the tops or lids of some NEFF models, if there is an obvious lid after trying the no power trick, take off the top and look for a stand alone reset button.


If all that fails, write me back
Will

if this machine uses an electrical-mechanical timer with cam switches, the try oiling the shaft bushings both for the timer motor and cams-the timer may be getting stuck because of dry or corroded bushings

not easy to fix - it has a leak. the tray at the base is full of water which ooperates a float which switches drain pump on. remove front panel at bottom front and mop out water or tilt backwards 45deg and water will run out. leak is usually main pump