Clean Drain Valves

Have you had a large chassis washer that water was pouring into the tub and either the water ran out through the drain,
or water kept filling the tub until it looked like the door would burst open?
In either case one area to check is your drain valve.

-TURN OFF THE POWER TO THE WASHER BEFORE CHECKING DRAIN VALVE-
-THE HIGH VOLTAGE CAN KILL YOU!-

Turn off the washer power and open the front panel of your washer. Sometimes you have to take off the whole panel and sometimes there is a small panel on the bottom front that can be removed.
The drain valve sits either directly beneath the tub on some brands, or it sits a few inches below the tub as there is a short hose to the drain valve on other brands. 

Typically there is a pipe clamp holding the drain valve on the hose or basket.
Loosen the clamp and either remove the hose or remove the drain valve.
Sometimes just removing the hose on certain models will allow you to see a bunch of junk sticking out.
Inside you can see a bunch of junk. It might be lint, mop strings, bra underwires, pens, and coins.
Clean out the debris and reconnect the drain valve or hoses and give the washer a try.
Taking out the debris will allow the drain valve to open or close appropriately and solve the water problem you are having. If the problem persists then you probably need a new valve. 

Ev
A Heck of A Nice Guy