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Dishwasher that is less than two years old does not drain at the end of the cycle. You can press the drain/cancel button and it will drain 50% of the time. I can hear the motor or pump running. We already replaced the control board, that was not the solution. No lines were clogged and the dishwasher does not run through the garbage disposal.
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Why is it not plumbed via the disposal?
Cause 1
Drain Pump
The drain pump uses an impeller to force water through the drain hose. If the drain pump motor is not working, the dishwasher won’t drain. To determine if the drain pump is defective, check the pump motor for continuity using a multimeter. If the motor does not have continuity, or if is getting power but won’t run, replace the drain pump. Drain pumps are not repairable—if the drain pump is defective, you must replace it.
Cause 2
Drain Impeller
The drain impeller pushes water through the drain hose and into the garbage disposer or drain line. If the impeller is broken, replace it.
Cause 3
Drain Solenoid Kit
The drain solenoid opens the drain valve to allow the water to exit the dishwasher. If the drain solenoid fails the valve will not open causing the dishwasher not to drain.
crwdns2934105:0crwdne2934105:0
Can you still use it like that? Even if water on bottom. Dishes still look clean. I tried cancel/drain but wouldn't drain. Nothing but silence...
If I were you, I would go back to the store from where you bought it and demand that they fix it under some guarantee or warranty since it is less than two years old. Tell them that you deliberately bought a Maytag so you would not have problems like this….
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I just wanted to add to this for anyone in the future that if you run into a dishwasher not draining and have run through most of the other checks like I have, also check that the wires from the control board to the pump have continuity and visually inspect them along their length. Turns out that after trying literally everything else to fix my KitchenAid KDTM354DSS5 with no luck and lots of head scratching that one of the wires was broken to the drain pump. It looks like it was somehow caught and crimped in the plastic shield and eventually broke the wire. I soldered and heat shrinked it back together and like magic the drain pump works again!
Things to check for a dishwasher that won’t drain:
crwdns2934105:0crwdne2934105:0
Oh boy, to me this all sounds like rocket science. I just commented above that I wonder if it's possible that you can still use it like that as the dishes look fairly clean, but then again, as this was the first time using it, it may interfere with the next cycle. If it doesn't drain, then it will use dirty water from the previous cycle. NOT good. This is the second Kenmore dishwasher that I've had trouble with...
Thank you Brody Collins, the info you have listed was very helpful. I need to check my board. Appliance repairman said it was my board due to no power getting to the pump from the board and he did not say anything about a fuse on the board. I need to find the board check the fuse and check solder connections and wiring before I replace a $190 board. Appreciate this sound response you posted. -TK
He also said the boards were back ordered. Anyone have any idea the best place to find a board for the MDB8989SHZ0 Maytag Dishwasher? Thank you. -TK
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I think I have the same problem you did. Did you figure it out?
crwdns2934271:0crwdnd2934271:0 Danielle Venne crwdne2934271:0
I have the same issue on my 2yr old Maytag dishwasher model MDB4949SKZ0.
The pump will not run at the end of the wash cycle. If I wait approximately 5 mins and press the cancel/drain button the pump runs and fully drains the dishwasher. Error F9 E1 which means didn’t drain or timed out.
crwdns2934271:0crwdnd2934271:0 Chris crwdne2934271:0