Kyle, I have gotten three or four of those lights on Q grills and every one worked or just took a little cleaning and monkeying around to get them back in action. Not the brightest, but very adequate and I like the tilt on/off function on them a lot.
Richard, I would try taking it apart and checking out the insides. It is just 4 screws. If nothing else, you might want to clean up the battery contacts a bit. When I had my last one opened, I didn't look too close, but I didn't what kind of tilt mechanism they were using. It could be some kind of electronic system, but I didn't see any rolling ball or mercury tilt switch in there.
What piezo ignitor would for the q320?OK, I just checked and I guess I have one Q300 and one Q320 with the red electronic igniter button missing. That will get replaced with a piezo anyway.
I'll snap a picture today and send to you so you can see what's going onOh, when ever I get a Q grill that needs the igniter replaced, I always use a Piezo in place of the electronic one. I probably have a wire if you need one.