Dishes do not come out clean?

If the dishwasher won't clean dishes, check the lower wash arm assembly. If the lower wash arm isn't getting water, all of the dishes in the lower rack will come out dirty. Check to be sure the lower wash arm assembly spins freely. Also check to be sure the little holes in the lower wash arm aren't clogged or blocked.

The dishwasher does not dry the dishes, it is the residual heat remaining from the washing water that dries the dishes.
Once the washing cycle is over, opening the door and pulling the top drawer out slightly to keep the door ajar will create a small opening which allows the steam to escape and the dishes then dry a lot quicker.

No they don't do they. Even if you don't use "Sanitize" or "Air Dry". The water doesn't get that hot either if you haven't noticed. With the new "replacement" machine, even after it's done I can't touch the dishes for several minutes. But the LG made that little jingle indicating it was done. There must be an easter egg somewhere that tells the machine to dry. Whatever you do, go and buy Dishwasher Booster, whether your store carries "Affresh" or the Oxy Clean brand, use it every cycle with your washer. You'll thank me. Your problem probably isn't listed under troubleshooting either is it? Just hang some paper towels or a dish towel nearby and expect to dry your dishes when the machine is finished washing them.

it has a hot water element that can burn out
have it checked by an electrician or technician

prime the sink before starting the dish washer

could be door seal .or some time use the right dish soap, door may d need ajusted

Replace motor & sump

I suspect it does have a heat coil but it is not in the machine where you can see it but is under the inside casing as mine is.

ok ...first the average dishwasher will only heat the water 1 degree per mintue,,,now if your starting out with very cold water the dishes will never get clean check your water temp,,at start up..if you have 90 to a 100 degrees thats ok..that means we have problem in heater circuit...also turn up your jet dry level...keep me posted onthejob,,incase we have to look at heater circuit

It is very common that high eficiency, low water using dishwashers take longer to finish all cycles. The best way to "hurry" the washing is to make sure that the water heater is providing hot water of at least 120 degrees. But no hotter then 140 degrees.
If the dishwasher runs even longer, check to see is the dishwasher is actually connected to the cold water line. This dishwasher can be run from cold water but the water heating phase in the cycles will add much time ti the entire cycle.

This unit has a sensor that detects the detects the water clarity towards the end of the wash cycle. Rinsing the dishes may speed the load a little, but encourage not to go crazy on the rinsing because the dishwasher actually counts on the food particles to help clean the dishes.
Also, note that the final (third) blinking light means drying. You can simply open the door anytime after the final draining and power off the dishwasher, allowing the hot dishes to air dry.
Hope this helps. Please resply with your findings. Thanks!