I have a Kidde 1235CA smoke detector and it has started going off when there is no fire and no reason for it to go off. It woke me and my family 5 times last night and 2 the night before. I have to shut off the breaker for a few seconds to make it stop, what is wrong and how do I make this stop we really need sleep. We have 4 units hooked up and I am not really sure which one is setting them off but my guess would be the garage one. It is really cold here now could that be doing it?? Please please help.