Knemore dishwasher worked perfectly. Then quit with dishes clean but about 3″ of water in bottom of unit. Won’t start. Any suggestion for troubleshooting? Thanks.
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Unfortunately, could be just about anything.
First thing to check, of course, is whether power is actually getting to the unit. Do the lights come on, does is make any noise?
If it seems to have power, is the timer working? Ie, if you try to start it and the lights light normally or whatever but the motor just doesn't come on then the timer is probably working more or less OK.
If the timer seems to work, a possibility is that something has jammed the pump.
But the first thing to do is to try disconnecting power for about 5 minutes, then restoring power, to see if that resets the timer or some such.
If the timer seems to be working, dip/siphon/sponge the water out of the bottom and check for anything obvious -- eg, a fork handle that's somehow gotten through the grille of the pump. See if there are any easily removable parts to let you get closer to the pump inlet area.
Failing that, it's time to call the repair guy. (Don't forget to double-check your warranty info to see if you might still be in warranty, if this is a relatively new unit.)
Float switch jammed perhaps?
Yeah, that too.
Can't say for sure but I would be willing to bet you will need a set of torx screwdrivers. I've torn mine apart several times just to clean it out. You will be surprised at the crap that collects in them as well as the stuff that "falls" in there or gets put in there on dishes. I would just suck it out with a sho vac and start pulling it apart. If you are reasonably handy, you should be able to get it apart and just start cleaning things as you go. Once you get into it, you are going to find the grinder which is supposed to chop up junk before it goes through the pump. You are going to find out there isn't much to the grinder and it wouldn't take much to lock this up. Do make sure you yank out the float which in mine looks like and upside down mushroom. It should just pop out with a little pressure on lifting up. It will be full of crud underneath which needs to be cleaned. When you put it back in, make sure the switch underneath actual does switch (click) when you lift up and down on the float. Obviously, the float should move freely up and down. Once you get the screens and sprayers out of the way and get it cleaned out down to the grinder (and you make sure it moves freely), try running it to see if it will drain. At times I will just dump a couple of pitchers of water in and then hit start and then cancel. No sense letting it fill all the way back up if it won't drain yet.
If you doesn't solve the problem, you could go underneath but it would shut off the power first before doing that. you can disconnect the drain hoses and make sure they aren't clogged and fish around with a screwdriver or your finger back up into the machine to see if you find something clogging the pump. Anything beyond that is up to you discretion. Me, I would keep tearing into it but my wife would want to call a repairmen. As I have told her before, its already broke. I'm not going to break it anymore. Honestly, if its got any age on it and you can't fix it, its probably better to just get a new one anyway unless you bought a super high end one to start with.
Problem is if you do that, the wife will want to go with a different style (stainless steel) and then she'll want a stove a frig to match.