Re: black film on turn dials and inside door and bottom...
I have a similar KitchenAid model and we always ran it in energy saver mode. Over time, there was a significant buildup of mold/mildew in the unit that was not easily noticed.
Since that time, I took apart the inside of the unit and thoroughly cleaned it with bleach.
Now, we never use the energy saver mode and we use the sanitizer to make sure it gets hot enough so that it kills the mold/mildew on every cycle. The mold has not come back in over a year.
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If is clean dishes in the upper basket, I conclude that the pump produces enough pressure what means that the lower spray arm for some reason does not rotate and because that washing result is bad. Before washing I would check the lower spray arm rotates freely and after that open the door during washing and check if the lower spray arm rotates. Sometimes, the holes in the spray arm clog and disable turning which leads to poor washing results in the lower basket.
Took apart the lower wash arm and the tower and this is where you noticed the water was sitting, but it would not shoot ou of the tower/arm. Stirred a screw driver in there and didnt really hit much. Jerked the motor relay and the water inlet valve. Something might have been clogging the pump
1. The spray arm has an aluminum piece on the bottom side of the spray arm. It kinda separates away from the plastic arm and as the spray arm turns, it hits the inner door liner. You can see the scrape marks it makes on the door liner. You can bend the aluminum edge upwards with needle nose pliers or try to make it tight to the plastic spray arm by pushing on he tabs.
2. If you have removed the spray arm make sure the thin silver washer is still inside the hole were the spray arm inserts use a flashlight and look inside that section. If missing, it can also make a noise.
it sounds like the problem is your water. go to www.dishwasherfilter.com and check out the dishwasher filtration system. it will solve your problem and works amazing. it is guaranteed or your money back.
Your sprayer arms may be clogged. The upper arm attaches to a tube in the back of the dishwasher. If the support clamps come loose, the upper spray tube will not be flush with the tube and can't carry water to the sprayer arms. Also the sprayer arms can become clogged with paper remnants, bone fragments, or pieces of peeling. You'll need to remove the sprayer arm and flush it at your sink. If there is a jet that is clogged, tweezers will help remove the residue. Also, dishwasher detergents need HOT water, so be certain the water is at 140 degrees. Make sure your detergent is fresh! Finally, the bottom of the door INSIDE the washer often get covered with gunk. Be sure and gently wash the bottom of the door INSIDE. You can open the door, spray some window cleaner on the bottom and then gently brush away the 'gunk.' Rinse with hot water from a pitcher or your sink sprayer and this can eliminate some of the residue that is showing on your dishes. I hope this helps. If it does, please come back to Fixya and rate my answer
That black gunk is caused by soap deposits and food particles that do not get washed down the drain. This all collects in the area around the door gasket and front of the wash tub and forms a sticky black sludge. You need to periodically clean the interior of the dishwasher out with a non-abrasive cleaner with some bleach in it to kill bacteria. You should also check the wash pump sump (located under the lower spray arm) to make sure it is not being clogged with food and debris. In order to access the pump sump, you will need to perform the following:
1. Remove the lower wash rack and lower spray arm.
2. Remove the upper wash rack and spray arm.
3. Locate the screws holding in the upper spray feed tube. Remove the screws to the feed tube and turn the whole assembly 1/4 turn to the right (CW direction). The entire assembly will unlock from the wash pump assembly and lift out.
4. Remove the strainer assembly (known as an accumulator) that covers the pump sump area.
Inspect the sump area for food particles and debris that may be contributing to the mess inside the wash tub. If you need some guidance, pcappliancerepair.com has some very helpful exploded view diagrams to assist you.
If you have any questions, or require further assistance, please let me know. I hope this is helpful to you.
The LG LDF6920 dishwasher has an innovative "Vario" motor/check valve. It switches between full power spray on the upper arms and the lower arm. So, if you are looking inside the dishwasher to see which arm is spinning, you just have not opened it when the lower arm is turning.
if the root problem is that your dishes are not getting clean with this water conserving DW, go out and buy a name brand detergent powder - like Electrosol or Cascade. And use less powder then you have been using.
decrete, you want to get down to the chopper and screen. If the screen is plugged up with gunk there won't be enough pressure to reach the top spray arms. Check out the posted pics. Remove the lower spray arm. Rotate the rear feed arm to the right until it unsnaps from the tube going up the back. See the 4 torq screws holding the filter on. Remove them. Lift the filter up. Now you will see the chopper inlet cover. 1 torq screw holding it in. Lift it up and there's the chopper and screen. Catriver..post back
Br, couple of things you can look for here. Check the vent, you can just pop this out. Sometimes there is a buildup of gunk which will hold water during wash and leak down between the door. There is a seal there, part number 974782. Another thing is to check the upper spray arm for cracks or splitting. This can send a direct flow of water into the vent. There is also a seal at the bottom of the upper spray arm, part number 3376846. I was fooled by a leak like this once, it turned out to be a clogged vent...Catriver..post back.
No I don't believe its the pump. I believe the lower spray arm is possibly split open on the side causing a loss of presure and flow to the upper arm and overloading the door seal. As well the loss of flow to the upper arm will resulted in it turning too slow.