Hello, we bought a LG LDF6920ST dishwasher without a manual. I need to know how to run this unit. There are just to many choices to pick from. I did ran it and the cycle that picked ran so long. ( normal cycle ) I think? Is there anyway you can show me the manual? Esther

Continuous run of DW "drain pump" is common problem, with simple solution, and without "pulling" the DW!

Because the problem is likely a "stuck float riser assembly", a mechanical "glitch", from crud build up, I recommend trying one "might get lucky fix" first.

Look up above the door and remove (usually two) screws holding two metal "tabs" to bottom of wood counter. This should allow you to "rock" the unit a little. This might allow the float assembly to operate.

A. You have removed and cleaned the screens to the pump inlet and have manually added hot water which the pump removes but the pump just continues to run, even when you open the door? You should still be able to use controls to shut unit off. If not, you should be able to turn DW off at circuit breaker panel. Find and open the breaker any how, because "I'm sending you in!"

There are two sheet metal "plates" about 4 inches high, 24 inches wide below the door on Bosch (and others) dish washers. Remove both, usually they can just be carefully removed.

Lay with face on floor and use flashlight to look "up and into" the left bottom side of the DW. About a foot into the bottom left side of the unit look for a red or orange (usually) plastic rod about the size of a pencil rising vertically out of a thin plastic "tank". This is a "sump" of some sort (???) and the bottom of the rod is a "float". The top of the "pencil" activates a micro switch. Junk in "tank" or on micro switch stops rise of the rod which keeps pump running.

Carefully, manually lift the orange rod with a long wooden spoon. Several times. You should hear the micro switch click. Don't be sticking screwdrivers or anything metal in there. Even with the power off.

Turn breaker back on. This may solve most common problem in first five years for many brands of dish washers.

Good luck.

"Born 33 RPM - now GHz"

Hi,
Get the manual online from the link below.

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

Hope it helps.Thanks!

Hi Mark.

Modern LG appliances retain settings even after you disconnect the power cord. The machine is reset opening the door and then pressing and holding the Normal and Delicate buttons at the same time for 3 seconds.

You can also try running the test mode shown at page 12 of the service manual.

If the machine is non responding and there is no code on display, then the problem is likely control module or control pad. Since the control pad looks defective, that is probably the part to replace.

Disassembling is shown in exploded view and service manual available using the links below:


Parts and diagrams are available here.

A copy of the service manual covering several LD models has been uploaded here.

Regards.

Ginko

Hi!

Here is the "Troubleshooting" page of the manual to this dishwasher: https://manualsbrain.com/en/manuals/1502549/?page=21

Hope it will help :)

Hi,

The scum, film and white residue problems have started since the reduction of phosphates in dishwasher detergents.

Here is a tip that will help you to solve the problem of films, residue, and scum in your dishwasher.

Dishwasher Residue and Film on Dishes

heatman101

there is a power issue. 1. check to make sure 110 is going to unit .use a meter at the terminal box.
2. if you have the correct volts thenthe problemis with machine. check on and off switch,door latch,and module. sounds like an electrical problem.let me know if this info was helpful.

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

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.