Several times now the smoke alarms have been going off when we’ve got to the house in Casco. I’ve found that if I reset the circuit breaker for them they don’t go back on; but it’s disturbing. We contacted the company that made the alarms to ask. They said that smoke alarms really should be replaced every ten years. These were probably as old as the house, fifteen years, so we called an electrician to get them replaced. Nothing much to say about it, except that the new ones have battery backup, which the old ones didn’t. We hope not to get the false alarms from them.