Something new has happened in our rig: replacing the smoke alarm battery has not stopped the alarm from beeping occasionally. Why? We winterize our rig and put it under cover for the Winter. Twi...
Newer Smoke detectors generally have a life of 6 or 7 years. The one in your TT is likely 6+ years. Once they need replacing they will beep until you take out the batteries and discard. If you read the smoke detector manual it will likely confirm this. If you don't have the manual, check online.