Trouble Erasing Sensor - DS12A

[relalien]

I have added a new DS12A. SC1200 System currently has 2 motion sensors and 4 DS12A. The problem is that Sensor 6 was not responding correctly, always showing open.
So I went to Install Mode and erased sensor 6. In the install Mode, LCD no longer shows 6, but when I try to arm the system, the console says there is trouble with sensor 6, so I need to bypass it.
I can't add the sensor on 6 anymore, and I can't erase it again because it's not in the list of installed sensors..

Any Ideas?

[racerfern]

I went through this also, even sent back my SC1200 thinking there was a problem. They sent it back saying it was fine.

The bottom line is the only way I can truly delete a sensor is to delete all sensors and then go through the process again.

[relalien]

This is the second time this has happened.. And yes, first time I erases all sensors and had to start over... I wanted to know if there is any other way.. Come on, the SC1200 has an erase command per sensor, why does it not work?

[Tuicemen]

Have you tried setting the sensors signal to a different code?

[relalien]

This is a Magnetic Sensor, no code setting to make.. I can add it to a different location, but the original is still there, so I need to always bypass

[Tuicemen]

True there is no code selection to make but you can change the code it sends.
I know it requires removing the batteries and re-doing an initial setup.
http://kbase.x10.com/wiki/Setting_Up_Door/Window_Sensors