They will replace them if you ask. I had a similar issue with our Gen 1 Nest Protects and false alarms. After talking to tech support, they replaced all of the

They will replace them if you ask. I had a similar issue with our Gen 1 Nest Protects and false alarms. After talking to tech support, they replaced all of them with Gen 2 units. They actually replaced them twice as the first set of replacements were stolen from my doorstep.