It has three colored lights, green, amber (fault) and red (alarm).
About a week ago, and again last night right after the furnace came on, it started beeping. One beep every 2 or 3 minutes, and the amber light came on. Amber is "fault," not "gas." I went over, after being annoyed for a few minutes, and pressed the "Test" button. The green light came back on and the beeping stopped. Nothing serious, yet.
So, is this alarm trying to tell me something? If so, what is it trying to tell me? Is it going to shut my gas off in the middle of a cold night?
By the way, there is only one button that I can see, to do anything with. That is the "TEST" button. Why does that button turn the fault alarm off?