If we put wash on then go out,does machine still run periodically after the cycle is finished?

there is a rest and deep rinse cycle in the program that stops the machine for a period
other than that have a technician check the program board

sp is the code for stand by or pause
so if you have set a soak period then it will stay there until the soak period has finished
if it is sp and you have pressed pause/start extra time the machine is in pause mode until you press start again

pull the start button out for to put on the on position, then unplug it for a few minutes then plug back in, or u can try opening and closing the lid slightly 6 times with a 12 second period, should reset it

bad fill valve, replace at once before you have a huge fload

have you cleared the filter

What make and model is your washing machine?

TURN MACHINE ON TO FINISH CYCLE THEN RE WASH WITH SOAP ETCH,DOOR WILL NOT OPEN MID CYCLE SAFTY LATCH,YOU CAN TURN PROGRAM TO FINAL SPIN TO EMPTY MACHINE AND FINISH PROGRAM THEN DOOR WILL OPEN

FOR ANY REASON THE WASHER MACHINE DIDNT FINISH ITS CYCLE!!! AND IT IS A SAFETY THAT IF DOESNT FINISH ITS CYCLE THE DOOR WONT OPEN!!!!

I HAD ONE LIKE THAT AND I BROKE IT APART!! AND I SAW THE WATER PUMP WAS THE PROBLEM SO I CHANGED IT AND PUT IT BACK TOGETHER AND LET FINISH ITS CYCLE AND OPEN THE DOOR!!! AND STILLS RUNNING!!!

sounds like a faulty timed switch

the humming noise could be from two sources and it is worth while doing a few simple checks first the drain pump is jammed with a foreign object. check nothing caught in the impellor second water not available - check taps turned on. also turn water off, undo fill hoses, put in a bucket and turn water back on try on drain or spin programs to check water drainage as well