I purchased a used FMM with 2 water sensors and 2 optical. My issue is I'm not getting any alarms when placing sensors on water spills.. I updated my firmware and went to the lmk install and followed the questions. I have no idea what sensor was number 1 or number 2. Looks as if they are labeled when brand new ? Does it make a difference where I plug these in ? I'm using port 1 and 2.



