Question about Neff 24 in. S5456 Built-in Dishwasher
The washer runs the desired program but does not complete , it remains on 1 minute left and then if you turn it off it reads 2 mins. so then if reset it returns to normal. the washer seems to be cleaning dishes ok and drying ok.
I have this problem quite regularly with my NEFF built-in dishwasher. It can have a number of causes, but in my case it is almost always due to a sticking float in the filling system. This causes the machine to underfill so it doesn't clean properly and then sticks with 1 minute left to run for ever. Other machines are probably quite similar - especially Bosch and Siemens.
My solution is to :
1. Disconnect electrical supply and turn off the water. Slide the dishwasher out of its housing carefully (you made need to disconnect hoses and mess with the levelling feet and other fixings to do this)
2. Remove the decor panel from the front door (usually two torx screws 2/3 of the way up each side - just loosen them)
3. Take the left panel off the dishwasher. Have a look at the filler float / air pressure chamber mechanism. If it all looks black and gungy inside, then this is probably your problem (It's slime mould that seems to love to collect here and jam stuff up). It may be possible to clean it in situ using hot soda or vinegar (someone else has put a youtube video about this here: https://www.youtube.com/watch?v=DE7oYA5l3EQ ). If that fails though, you will need to remove the entire float chamber mechanism to clean it out.
4. Take the bottom panel off (below the door.
5. You need to remove the water matrix reservoir. Remove the clip securing the water inlet to the matrix (back lower left, narrow pipe - blue in my case) and pull the pipe off (have a towel handy - it'll dribble quite a lot)
6. Pull out the clip between the two corrugated pipes next to the water inlet pipe, then pull these two pipes away from the water matrix. (towel again!)
7. Peel away the plastic splash shield carefully to expose the wiring to the micro-switches. Double check you unplugged the machine, then pull the two connectors off the switches.
8. Remove the two metal rails holding the matrix to the side of the machine (one torx screw in the middle of eash rail) and also remove the two top retaining clips (front one just pulls off and the rear one is held with the self-tapping screw accessible from the back)
9. You should now be able to lift the entire water matrix clear of the machine (there are 3 water connections at the bottom - these just pop out. Take care not to lose the rubber sealing rings). And you'll need that towel again. And maybe a bucket! And a good excuse for why the floor is all wet. (allright, I exaggerated a bit there)
10. Disconnect the lower drain hose from the float assembly - you need to get at this through the lower front panel.
11. It should now be possible to ease the float assembly up and away from the machine. Watch out for the red push-rod that operates the anti-flood device from the polystyrene float in the base.
12. You now have a (fairly slimy) pressure chamber assembly in your hand. All the parts of this simply unclip with a bit of effort. Take case not to break any bits, but basically anything that's a different color is detatchable. Clean everything (except the two microswitches!) in warm soapy water. An old toothbrush can help. If there is any lime-scale build-up, use a lime-scale cleaner too.
13. Before you put if back together, check the base of the machine (where the polystyrene float is) for water. If present, soak it up with a sponge or paper towels.
14. Now put it all back in the reverse order. REMEMBER THE ANTI-FLOOD float/push-rod assembly. I forgot and had to take it all apart again.
15. Water on, plug in, cross fingers and try it!
16. If it still messes up, check for water in the base again - you may have a leak from somewhere else causing the anti-flood to operate. ( In this case though, the machine will normally just continuously try to empty, rather than even attempt a wash cycle.)
Posted on Dec 17, 2014
To be honest with you i ended up taking it to the local dump because i was under pressure from the wife as she was concerned about the items not being cleaned properly and also if left unattended for a long period of time was it going to be a fire hazard?? but saying all that i was kind of happy leaving the door open once the wash was completed to leyt the dishes dry naturally. it's your call but in a nutshell no i didn't fix my one. good luck dave
Posted on Oct 02, 2007
Did you manage to solve the problem with your dishwasher. I have the same model and it keeps sticking on 1 minute at the end of the cycle. Any advice please?
Posted on Sep 30, 2007
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Posted on Jan 02, 2017
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1. With power restored and wallplate removed, use your finger or a small screwdriver to adjust the light sensitivity and time settings on the device as follows:
Light Level Adjustment:• Turn the control towards the "+" sign. Lights will turn ON in lighter conditions.• Turn the control towards the "-" sign. Lights will turn ON in less lighting conditions.
Time Selection:• Adjust the time selector to the desired length of time the lights are to remain ON. Lights will remain ON from15 seconds to 15 minutes after the room is vacated.
• Turn the control towards the "+" sign. Lights will remain ON up to 15 minutes.
• Turn the control towards the "-" sign. Lights will remain ON up to 15 seconds.
2. Test that the light level and time selection are as desired. If not, repeat adjustments until satisfied.
The manual is here:
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