I have the model 1275 smoke alarms installed in some rental units. I have a total of 24 installed. The local code calls for these to all be connected to one circuit breaker and be interconnected. I am having a problem with nuisance soundings. I installed a relay, it worked for about 2 years, now I am having nuisance soundings again. I have tried everything I can think of to stop these nuisance soundings. Anyone have any ideas what to do? I have contacted Kiddie Frenetics to no avail. I thought they would be more interested in a customer having a problem with their product.