Hey guys, it's getting cold and I am having grid heater issues. I've had issues in the past so right now I have it on a manual momentary switch. They had been working fine and the other day I think I smoked the relay. Put a new relay in it. You can hear the new relay clicking, so I'd assume there working. And I know the top grid gets hot. But isn't there 2 grids? Is there a chance the grid itself is bad?