New panel will not Communicate - Default Initialization (Hard Reset)
I have only installed two kt-300 panels and both times they would not communicate to a PC and a kt-400, until I did a Hard Reset, these were new panels
How to Use the Default Initialization (Hard Reset)
1. Disconnect both transformer and battery.
2. Remove all connection to DOOR1 and RL1 terminals.
3. Place a jumper between the DOOR1 and RL1 terminals.
4. Apply AC power to the transformer. The VITAL LED should flash 4 times. This means that the controller is in the initialization mode.
5. Remove jumper.
6. The VITAL LED will flash 3 beats at a time as soon as the controller communicates with the PC.
7. Reconnect the battery.
How to do a (Hard Reset) is on the KT-300 DOOR.