A:Answer You could call to ask. Who knows, it could be an issue with that model.
If not, you may want to give this a try (if you haven’t already): UNPLUG unit. Lightly spray WD-40 (or similar lubricant) at base lightbulb. Let set a few minutes to reach crevices. Using leather glove* or thick* damp rag, gently twist bulb counter-clockwise to remove.
*Used to help protect against glass shards in event bulb breaks. IF bulb breaks, search online for “Potato to Remove Broken Lightbulb.”
Hope this helps!