[Mikendebbie]

...add to the list of things that make it go off - dog hair dust bunnies.
We had to replace one in a Jayco a few years back, but I learned a lot while investigating what could make it go off. The main thing I learned is that they need to be replaced after 7 years of service, and they are more expensive that I anticipated. I think we paid $125 at Camping World...maybe a little less.