whirlpool range

glass top stove/oven will not get overr 275 in either the bake or broil mode…can anyone offer some help:(

I cannot find any info on the given model number, please check it.
http://www.appliancepartspros.com/modelnumber_locator.aspx

Does the oven come ready or does it stay in preheat?

If it comes ready then it could be the oven sensor or the control board.

If it stays in preheat then it may just be that one of the elements has burned out.
Set the unit to broil and see if the broil element comes on.
If OK
Set the oven to bake and see if the bake element comes on. Most units switch back and forth between bake and broil elements when in bake mode.
IF OK the I will have to find some tech info on it.

If either element does not work, unplug the unit and remove the element then check it with a meter. Usually around 10 ohms.

It is very important to unplug the stove as on many units the element still has 120 volts on it even when it is turned off.

If an element is not coming on but measures OK then some units have a hi-limit thermostat that kills power to one of the elements if it blows. Usually attached to the back outside of the oven. They normally blow during a self-clean cycle.
Also could be the control board or a wire has burned off.