DIAGNOSIS The LED power light is fed by a simple circuit. A dim or flickering light, while the grill still functions, usually points to a failing resistor or a poor solder connection on the small circuit board that powers the light.
FIX Honestly, you can ignore it if the grill heats normally. The light is purely an indicator and its failure doesn't affect the heating element's operation. If it bothers you, the fix involves disassembling the base to access the PCB, which isn't recommended for most users.
IF THAT DIDN'T WORK If the flickering is severe and the grill's heating becomes inconsistent (turning off and on by itself), the issue might be related to the main power connection or thermostat, not just the light. In that case, treat it as a heating problem, not a light problem.
HEADS UP Use the grill's performance as your guide, not the light. As long as it's reaching and holding temperature, it's safe to use. Just be aware that if other electrical gremlins appear, the dim light might have been the first symptom of broader aging in the unit's electronics.