2 of them were not working. Replaced batteries. Now they work, individually, but not with the rest of them in the house. Does anyone know, is this a sign that they havve gone and bad and need to be replaced? Or is there a chance the wiring isn't right going to them? And how would I check. Also If they do need to be replaced, do all of them in the house have to be replaced to match up. These have the 3 inline plug(not the triangle plug). Thanks for any help/advice
Tags: 1201182B, Firex, House, installed, throughout