Dish washer won't drain completely

timer is sticking or bad replace the timer

The power line might flick. That's why not complete cycle.
Before do any repair, samply plug a alarm clock to the outlet that
the washer plug to. Leave there for a while about 1 day. If it blink that mean there a flicker on that line or may be some other line as well.

If power line is flickering. Fix the line (Do not fix the Washer!)

Mai Lor

you need a new lid switch google model number and order new one

see this causes and fix it. God bless you
Coin Trap If the washer won't drain the coin trap may be clogged. This washer is equipped with a device near the water pump called a coin trap. The purpose of this device is to trap any foreign materials that make their way down the drain. Normally, the coin trap can be accessed through an access panel. It is designed with the homeowner in mind and is normally easy to clean out.

Drain Hose If the washer won't drain water check the drain hose. Be sure the hose did not get kinked behind the washer. Also, remove the hose from the pump and check it for obstructions.

Door Lock Motor and Switch Assembly If the washer won't drain the door lock assembly should be checked. The door lock can fail either mechanically or electrically. Test any switches on the door lock with an Ohm meter. The switches should have continuity according to their design.

Lid Switch Assembly If the washer won't drain the lid switch assembly might be defective. This is a very common problem. The lid switch assembly can fail either mechanically or electrically. Test any electrical switches with an Ohm meter for continuity. The switches should have continuity according to their design.

Drive Belt If the washer won't drain, should check the drive belt. If the belt is broken or if it isn't tight on the pulleys the washer won't drain properly, if at all.
Clogged Pump or Hose If the washer won't drain there might be a clogged pump or hose. It's common for small socks or other small clothing items to get into the water drain system and clog the hose leading to the pump or the pump itself. Remove the hoses from the pump in order to remove the article of clothing. Keep in mind that any water in the washer will pour out of the hoses when removed.

Drain Pump If the washer won't drain water the drain pump might be defective. It's also common for a small sock or other article of clothing to get caught in the drain pump or in the drain hose. Check both for an obstruction before replacing the pump.
Belt, Water Pump If the washer won't drain the pump belt might have broken or might have worn out. Check the belt and replace if it shows signs of excessive wear.

Try using the extra rise cycle.I hope that helps.

What is the model number of your washer? This condition is caused by a bad lid switch.

There is a screen filter at the bottom of most dish washers, if the screen gets dirty it probly won't drain properly. Check the screen and clean if neccesary. If not that, then pump may be getting weak.

It is possible that your lid switch is defective. Bypass the switch and try again-Please unplug your machine while you bypass switch. If it still does not drain the I would suspect your timer.
Lid switch Part# 3949247
Timer Part# 3955651
http://www.on-timeappliance.com/washingmachinerepair.html

usually it is the water level control switch which can be found at the link i provided for you http://www.appliancepartspros.com/repair-help/maytag-dishwasher-wu304-repair/wu304-will-not-drain.html