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After every load there is always some water left in the bottom of the drain basket/filter. It's not up into the dishwasher itself, but when I reach into the filter to clean it, there's always water in it. I have a GE QuietPower 3.

Is this expected? If not, what can I do about it?

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I've never had one that held water like that. I would contact the manufacturer. –  electricsauce May 15 '11 at 17:17
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3 Answers 3

up vote 5 down vote accepted

I had exactly the same issue with my dishwasher. Standing water at the bottom after the wash cycle almost every time, yet the dishwasher appeared to be draining correctly.

Nevertheless, the first thing to verify is that the dishwasher is indeed draining properly. Start a cycle to partially fill the washer, then manually engage the drain cycle. Does the water drain quickly and completely? If you're so inclined, you can (carefully) leave the door open while the dishwasher is draining and hold down the door lock mechanism with a small screw driver so that you can watch the process. Another option is to disconnect the drain from your disposal and place the end into a bucket to observe how the water is draining. It's also a good opportunity to clean out any sludge that may have formed in drain hose.

If the draining appears to be functioning normally (as it was in my case) the next step is to verify the filter, food chopper blade and mesh grate that is in front of the sump pump/pump inlet housing is not clogged - this is slightly more involved, but still fairly easy to do. Here's a video to give you the general idea of the process: http://www.youtube.com/watch?v=lRDbTgBOtIE. This is not for your model specifically, but it should be fairly close.

In my case, the mesh grate was almost 100% clogged with debris and hard water deposits, and the food chopper blade had a piece of string wrapped around it that kept it from spinning freely (no idea how that got there). After soaking the grate in a vinegar solution, cleaning the it with a toothpick and unwrapping the string from the blade, I haven't had any more issues with water remaining in the dishwasher.

This may not fix your problem, but it's fairly easy to do yourself and may just save you a service call. Good luck.

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+1 Nice details! I'll be giving this a try myself. –  Tim Meers May 15 '11 at 20:28
    
Thanks for the great answer. I did notice some string and guck wrapped around my food chopper blade when I was cleaning it, but didn't clean it completely because it involved taking more apart. But I'll try it and see if it helps. –  Aaron May 16 '11 at 1:09
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It could be that the drain is draining too slow and leaves water in unit because the drain times out before its complete. Also the house drain might be too slow and could cause it to back up, but this doesn't sound like it's the case either.

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There will always be only enough water left in the sump to keep the seals from drying out but should not be any water in the tub. This small amount of water is drained away after the machine fills and drains when you use it again, leaving fresh water in the sump.

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Oh, interesting! So maybe the water is supposed to be there. I actually decided not to take it apart and clean it completely as I had hoped to, as I decided it was too much work for too little benefit. With this possibility in mind I'm especially glad I didn't. –  Aaron Dec 14 '12 at 2:18
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