LG LDF6920ST STANDING WATER

from what I can work out this is related to measurement of the flow and water levels, check all hoses etc for any build up and make sure they are clean.
http://answers.lg.com/answers/7676/product/MD00000191/lg-electronics-ldf6920st-questions-answers/questions.htm

Whistle could be inlet water pump,leak will have to be traced could be from a number of places,poss from pump

Hi,
Get the manual online from the link below.

http://kitchen.manualsonline.com/manuals/mfg/lg/ldf6920st.html?idRes=10440047

Hope it helps.Thanks!

http://www.lg.com/common/product/support.jsp?localeCd=US&productId=LDF6920ST&uri=/us/appliances/dishwashers/LG-LDF6920ST.jsp&categoryIdCms=4#

Either:

1. the water does not get into the dishwasher open the dishwasher 3-4 times during cycle, you should see some water at least once, if not - check water valve, water level float and water pressure.
2. the pump is clogged - there is water, the motor will run but no water is circulated. Check pump filters, check chopper and impeller.
3. motor in main pump is not working - could be caused by something stuck on the impeller or chopper or could be a problem with the motor itself or control board. Check if line voltage is coming to the motor during wash/rinse cycle.

Good luck,
Vlad
First Choice Appliance

For water supply, use a braided stainless steel flexible dishwasher supply hose with 3/8 compression ends on each side and a 3/8 male NPT x 3/8 compression elbow adapter. There is a tee with 3/8 female compression x 3/8 male compression x 3/8 male compression which can be used between the hot water shut off valve and the supply tube to the kitchen sink faucet to get your hot water with no significant plumbing work. Make sure the drain hose does not run straignt down back to the dishwasher. (put a loop up to make sure no dirty water tries to go back to the dishwasher.) If installing drain to a disposer drain port, make sure the knock out plug has been removed. It's also easiest if the floor under the dishwasher is at the same hight as the rest of the floor in the kitchen. Make sure wire nut connections are tight for electrical.

Check that the drain hose end (connected to a garbage disposal?) is not plugged or connected to a slow/plugged drain.

Then run an empty load and start up the dishwasher and wait until the water has finished flowing in. Then open the door and add one cup of vinegar. Allow that cycle to drain and repeat one more time, adding the vinegar _after_ the rinse water has finished being added.

If problems return, use a phillips screwdriver to remove the approximately 9 screws that hold the lower strainer assembly. You will first need to remove the lower spray arm. Inspect with a flashlight looking for any debris in that sump area.

With nothing displaying and only the humming sound, it appears that the main controller card (PCB) has most likely failed.

If it were my dishwasher, I would add a pitcher of water (more than two big glasses full), close the door and start a cycle and listen at the drain. The first thing a dishwasher does is run the pump to empty any standing water before it fills up. If you hear that water drain, (and can see that is has drained from inside the dishwasher) it is not as broken as I think it is.

BUT, this dishwasher should be displaying something from the moment you press the power button.

Please post back with what you find and decide you do. OK?

you could have a clog in the pump a sock or something along those lines.

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.
Good Luck!