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If you are noticing that the dishes are not clean, then there are a few things to check for. Check the soap powder if it's kept in a dry environment. Also try replacing the powder with something like a gel or liquid. Next thing to check for is the water pressure and fill valve. Check if the water is filling in and the spray arms are throwing the water with enough pressure. Try and listen to the sound if you hear a proper spraying action sound.
If it seems as a low water pressure then check the fill valve. Now, check if dishwasher is draining the water or not. While the dishwasher is working check whether the dishwasher is draining and there is not much left out water after the cycle is complete. Try cleaning the spray arm with a soft brush. The water temperature plays a major role in cleaning of dishes. The temp should be between 125 and 150 F for dishwasher to clean the dishes. Hope this helps... Please post back if you need more informatiion.
Hi While putting dishes in the washer and obstructing the spray ams which causes food particles to stay on dishes. After loading dishwasher and pushing in baskets ,be sure the spray arm doesnt hit any of the dishes causing them to not clean properly. If that doesnt work or is definately not your problem try removing the spray arm and seeing if it has food inside of it. Some times they get food build up in them and need to be flushed out. However the other causes for this problem are… Not enough water entering dishwasher (check level after fill... Should be slightly below bottom wash arm)
Water filling but draining during wash cycle. Check toward end of wash cycle but before drain. See if water level is diminished from start of wash cycle.
New 'water saver' dishwashers are notorious for having smaller water jets, and thus easier to stop-up jets. Check the jets on all wash arms to be sure they are cleared of food particles.
Another way to check the wash arms is to manually position them at specific locations, momentarily run the dishwasher for a few seconds, then open the door to inspect the location of the wash arms. Do this three or four times to eliminate the possibility of coincidence.
If the wash arms do not move from the location that you put them, the most likely cause is food particles stopping up the water jets. These jets not only clean the dishes but also the water pressure they generate turn the arms inside the dishwasher to properly distribute water pressure on the dishes.
Sometimes you can dislodge and remove food particles stuck in one of the jets with a toothpick or other small probe. Others require that you remove the arm(s) and get a little more creative. I use compressed air to clear mine, but not everyone has access to compressed air, so use whatever you can to remove the food particles.
Simply dislodging them from the water ports is usually not effective... As soon as water pressure is applied, the particles return to the jets and stop them up again. The real fix in this instance is to completely remove the food particles from the arm if you can. Let us know if you want to know something more else please accept the suggestion. Thanks for contacting Fixya.com
Hi, Make sure the jets in the spray arm ore not plugged at all. Check the black bellows on top the lower spray arm and see if it has a split in it. Let me know if these help or if I can assist you further.
It is not clear what type of lance or nozzel you have. You said that the machine works fine with the circulating water jet(the turbo). So it seems the machine is fine. I do sometimes service variable nozzels and variable lances. But the best solution is to replace nozzels and variable nozzles and lances with new ones. Regarding the fan spray setting it could have no pressure because it might be in the chemical setting. The chemical setting lets out a fan shape flow of water, but with less pressure. The chemical system only works on low pressure in domestic washers, that is why it needs a low pressure flat spray. The pencil jet has 2 jets comming out because if it is a lance or nozzel with ball bearings, these ball bearings must have stuck in a wrong position. Also 2 jets can come out, due to a damaged nozzel hole.
Altogether, the best advice is to buy a new nozzel or lance...which ever your machine uses. All Karcher machines have their own specific nozzels, lances and high pressure hoses. You cannot change these from one model to another.
5 bar is a good pressure. worth while to check the valve filter as suggested. turn off water, remove hoses from machine. look down valve spigot and there is a mesh filter inset. remove with small pliers and clean
try turning the water supply down and recheck the form of water spray from above the soap tray(with it out and a towel there).
if the jets of water are spraying everywhere it means there are semi blocked holes. either clean them out thorougly or drop the water pressure down to a fast trickle. tone.