Ld 14aw3 all the dishes are still wet when cycle is finished. we do use a rinse aid [finish]

SOURCE: DISHES COVERED IN WHITE POWDER

To check on the source of the white powder (calcium?) soak some dishes in vinegar to see if this cleans them up nicely ... or if the 'white powder' is actually permanent etching. You may have very 'hard' water and will need to deal with that with a water softener or additives.

Read the following article for a better understanding and try the vinegar test . (also ensure you are using dishwasher specific salt to regenerate your integral softener... assuming you have one)
http://www.dishwasher-care.org.uk/best.html

SOURCE: Dirty Dishes after dishwasher has finished

there is a new product out that filters the water going into your dishwasher. it works great and my dishes look fantastic. they use to look dirty with a white film on them. after the first load when i hooked up the dishwasher filter my dishes looked brand new. it is affordable and works everytime. you can get it at www.dishwasherfilter.com. it also filters out rust and sediments so it should remove the sand like particles.

SOURCE: LG LD-14AW3 Dishwasher leaking after cycle

Sounds like you've diagnosed the solution on your own.. Most of the inlet valves are spring loaded so that if power is removed or disabled.. it defaults to a closed state and doesn't allow water int the wash basin. To open, they need to be energized by the control system so you may have one of two issues.. a faulty inlet valve that doesn't spring closed when it is not energized or a controller that is comanding that valve to open ( less likely of the two) For a quick test.. make sure the DW is dry inside and open the door. wait and watch for water to enter the basin.. If it does begin to fill up.. your inlet valve could be the root of your problem.. It is also possible that you are back-siphoning waste water in from the drain system. If the water looks dirty then that is more than likely the problem so you may have a clogged pump, kinked drain hose or your drain system itself is not draining as fast as the DW pump forces the water out.
You should routinely clean the pump filter so that the pump can remove all the wash water without having to draw it thru food debris caught in the filter.. Hope someof these ideas will help you solve your problem..

SOURCE: Dishwasher leaving film

white film is nearly always due to no rinse aid. it is laborious to do but check that rinse aid is being released. take outer door off and operate dispensor by hand to check release. also check the setting on the dispensor.
pue a multimeter on the solenoid and check that it is energised during the cycle
tresilla

SOURCE: Dishes have filmy finish

hello. this will help a great deal.

First of all empty out your dishwasher, toss in two cups of plain white or cider vinegar and run it on the highest and longest cycle.

Always run the hot water in the sink first and start the dishwasher only when the water is as hot as it will get.

This wash will clean out your dishwasher thoroughly.

Then always do your dishes after you have rinsed any residue off of them before placing them in the dishwasher and I always recommend the pot scrubber cycle if you have one.