Learn how your appliance is supposed to operate so you can determine if it is malfunctioning.
There are two (2) fuses or breakers in the house electrical panel for an electric range, oven or cooktop. Both must be good in order for your cooking appliance to heat since the heating elements operate on 240 volts. It is possible that if one of those two fuses or breakers have blown/tripped, lights or a clock may still function but you just won't get proper heating from the elements.
Check the house electrical panel to see if a fuse has blown or a breaker tripped. Try resetting breakers even if they haven't visibly tripped, just in case. The wall outlet for the appliance can also be checked to confirm the full 240 volts is present there.
If ANY of the elements work at full power (ie. glow red when on high), the problem is NOT in the house fuse panel.
All of the information in these Appliance Clinic procedures is provided FREE OF CHARGE. No liability is assumed by the author for the accuracy of the contents or damages caused by the use of these procedures.