Hi there, I recently purchased a house that included a PC1555 security system. I've figured out the installer code and the regular code, both defauts. It has several wireless sensors, so I went through and replaced batteries on them, and most seem to be working. The front door sensor is reporting open however. It has the magnetic type switch, which I checked with a multimeter, and is working fine. When the door is closed the reading is .05 ohms or less. When the door is open the reading bounces around. This is different then the other door sensors which just report an open. It makes me think the wireless sensor is bad. So I have two questions. Is there a way to verify it's bad before purchasing another one, and two if I do need to replace it how do I program the new sensor? Oh and I've found two types of sensors normally open and normally closed. I assume I need the normally closed type, but how do I know for sure. thanks Jason I've downloaded the installation manual, but it is very confusing and it doesn't really give a clear picture of what the procedure is to replace a sensor.

Hi, I recently installed the simonxt solution from frontpoint. I have two garage doors with a sensor on each. One of them went off around 4AM even though the door was still closed. It was very cold that night. I exchanged that sensor for a new one from frontpoint. Last night, the second sensor also went off around 4AM even though the door was closed. Again, it was a cold night with snow (New Jersey). I recently installed the system, so have not run it through a full winter yet. Does anyone know if these sensors can go off if it gets too cold? Outside of these two events, the sensors have worked flawlessly. Thanks, Nik