Thanks for the response! The model number for mine is LP8071LBN. The halogen bulb was 150W, which is about the same power as all the other bulbs on that floor of my house combined (and actually exceeds that model’s maximum wattage) – the LED is 9W. I think the manual just calls for 100W halogen without specifying that an LED cannot be used.
If low wattage could be the problem, do you know if there might be a workaround, or am I restricted to using a halogen (I replace with 100W I guess)?