My LG dishwasher has a nasty odor after a day or two

Check whether the smell comes from the main drain. Pull your dish washer drain hose and check.

Leave dishwasher door open for few hours. Hope no rate has died inside the machine.

Run a empty wash several times!

check the drain hose connection from the dishwasher to the main drain under the sink , it should be connected above the trap . hope this was helpful

There is a product at the grocery store in the detergent area that will take care of this ... find it near the dishwasher products.

possible drain hose leakage under the unit or a small break in the hose. This smell is from water either sitting under the machine or there is a break in the drainhose causing the smell
Dave

did you take out the plastic stop before install?

Betty, this is problematic of all front loading washers. I have some helpful suggestions, which have helped us with our own front loading washer.

First, whenever you're done doing a load of laundry, don't close the door all the way shut. Leave it open a couple of inches for a day to let it air dry out, which will prevent the nasty smelling odor you're getting.

I also take a small rag/washcloth to wipe out the door seal/gasket after we're done washing, that way, there's less water to contribute to foul odors, etc.

The other thing we discovered is to make our last load of wash the hot water wash, whenever we're doing whites, or the stain cycle. This helps get rid of any gunk that might hang around between wash days.

Now we don't always have a hot water wash everytime we do laundry, but by just wiping out the gasket and leaving the door open, we eliminated the odor issues completely.

Frankly, the gasket shouldn't have to be wiped out when you're done washing, but that's a design issue that we've overcome with a simple washcloth. So just do these simple steps and you'll save yourself some frustration.

We really like how clean our laundry gets with the front load washer and how little water is needed to do a load, so we've decided it's worth taking the time to wipe the gasket once we're done for the day, and to leave the door open to prevent any nasty odors.

Hope you find this Very Helpful and best regards!

A small amount of water may be normal.  Clean the filter at the bottom of the tub.  Sprinkle some baking soda inside between washes.

Can you confirm that you own an LG LDF7810 dishwasher?
The symptom you describe is a classic symptom of a failed heating element but the LG dishwasher ~should~ report an error code.

start with empty dishwasher,,,add a pint of bleach and rinse on short cycle..onthejob

After you have unloaded the the dishwasher, prop the door open with the upper rack out.
Let the inside air out. After a short time the remaining moisture will evaporate. Stainless steel dishwashers are prone to an odor if you do not use the machine daily. There are after market products that are citrus based that will help. Check with Bosch.