Why does my dishwasher smell bad?

SOURCE: Bad smell

It sounds like your dishwasher does not have an air gap. Newer dishwashers come with an air gap installed, but they can be taken out. A quick fix for this is to:

Check the drain line under the kitchen sink. The drain line is supposed to run from the bottom of the cabinet, and run as high in the cabinet as you can get, (up to the bottom of the counter top) then connect the drain. This is called an air gap, and helps keep a little water in the drain line, which will prevent sewer gases from entering your dishwasher, and garbage disposal.



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SOURCE: Maytag Quiet Series 300 dishwasher, dishes come out dirty

A water softner will not make the dishes any cleaner, it just makes it so they don't have water spots on them.
If the dishes are dirty, it is most likely that the nozzles (holes) in arms may be plugged.
Also check to make sure you are getting plenty of water to dishwasher. Make sure all water valves are full turned open.

If the control panel does not work all the time, it is very likely you have either a shorted wire, or a fualty main board which is very common in newer machines.

SOURCE: bad smell from my samsung dmr77lhs dishwasher what to do?

Put about three or four drops of eucalypt oil into your dishwasher and put it on a wash cycle - you don't need to use the drying cycle. Then is should smell beautifully. It's probably just the newness of the machine with seals and parts all giving off the smell. If that doesn't work contact the dealer and get them to find out what it is. After all you paid good money for it.
Good Luck

SOURCE: Bad smell in dishwasher, have cleaned and even

Three things, dryer coil, food stuck inside.

Most washers have a one way valve on the drain and a water trap
created with the line, so no water or smell can go into the machine.

Check the valve, remove the hose,that should be under the sink,
wrap a cloth around it and blow,it should not be able to blow into it.
Then make sure the hose at some point go higher then where it
connects to the drain.

Fill a bucket and fill the washer until you see a little in the bottom of the machine, watch it for a few minutes to see if it drains, it
shouldn't, dump in a bottle of white vinegar and run the machine, make sure dry is off. Then run it again, do not add anything.

SOURCE: new dishwasher leaving powder residue on dishes.

Quit using the new Cascade. The formula change is what is causing the problem. No research from Cascade before releasing the product