consistant beep from oven control pad

hi i recently ordered a control board for my ovens digital pad. the control board fried about a year ago and wanted to fix it for christmas this year. i ordered a new control board from you guys part number WB27T10416. when i replaced the part it worked great ! i pressed all the buttons and everything seemed to work fine. 10 mins later my grandpa went to test out the buttons and it started making a consistant beeping noise. i thought maybe a button was stuck so i opened it and put it back together. than i unplugged it and plugged it back in. the beep was still thier. it finally went away but now the only button that works is stop/clear. only the stop/clear button makes a noise well the others dont work. i left it unplugged overnight and plugged it back in to see if it was working but no sign. anychance thier could be some sort of setting that enables it from working or if maybe i got a defective control board?