Washer won't stop filling even when unplugged?

Have you unplugged it for a couple of minutes to see if reseting it will clear out the error

the washing machine is designed with a timer limit switch have the switch checked.

You need to replace the water inlet valve on the unit. Here is a link to the part you need.

Please post the model number for your washer. It sounds like your hot water valve has failed and is not closing. Unplug your washer's power cord and turn the hot water spigot that comes out of the wall on. If you still get water filling your washing machine, it's definitely the washer's valve and you will need to install a new set (hot and cold valves are both part of the same assembly).

kenmore portable washer will fill with water when button pulled out it just hums and occasionally tries to start.

Water valves work on a hydraulic principle, the surface area of the valve where the water comes to the valve is more than the opening that it passes into the machine.. The pressure of the water shuts off the valve. The electric solenoid opens the valve when power is applied to fill the machine.
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If you unplug the washing machine while it is filling and it keeps filling you have a bad water valve.

If you unplug the machine while filling and it stops filling you have a electrical problem or a bad pressure switch.

This symptom usually indicates that you have a failed inlet solenoid water valve assembly. Completely unplug the washer from the electrical supply and see if the water stops filling. If it does, then you likely have a control board failure. This is rare but possible. If the water continues to fill with the washer unplugged from electricity, I recommend shutting off the hot and cold water supply faucets behind the washer. It is likely that the water will stop filling the washer. This would indicate that you have a failed water valve assembly.

you need to replace the water inlet valve on back of washer as the cold water side is not opening,it's easy,remove the 2 top head screws,flip the head up,use a screw driver to pop the 2 clips out(1 on each side top),unplug the wire jack,now pull the back,back so you can get to the valve-mike

When the washer initially fills for the wash, is it only hot water entering the drum? Try switching the water temperature between hot and cold as it fills. If any of them show little or no water getting through, it sounds too easy but check to make sure water supply taps are on, and that the cold/hot fill hoses aren't reversed. Remove the fill hoses and check any of the screen filters for blockage (in the hoses and in the inlet water valve). When the machine stops and waits to fill but all you hear is a hum, it sounds like there is power going to the valve but water is not able to get through it.
Good luck!

It leaks water and won't drain