If your stove element is staying on high, it could be due to a few different reasons. First, check to make sure that the element is actually turned all the way to the high setting. If it is, then the next thing to check is the stove's thermostat. If the thermostat is set too high, it could be causing the element to stay on high. Finally, if neither of these are the issue, it's possible that the element itself is defective and will need to be replaced.