Diagnosis
The heating element circuit is broken. The power light confirms mains voltage is present.
How to Fix It
Unplug it. Remove the two screws on the hinge plate. Carefully lift the top plate assembly. Check the two thin ceramic heater pins where they connect to the main board. Reseat those connections. Reassemble and test.
If That Didn't Work
The internal thermal fuse on the main board has blown. This is a safety device. The board must be replaced.
Heads Up
Do not attempt to bypass the thermal fuse. It prevents fire risk if the thermostat fails.