It is possible the transceiver was damaged if there was a lightning strike. You could either attempt to replace the transceiver or replace the panel with one compatible with 345Mhz 2GIG sensors.
Options would be another 2GIG (the Edge is the most recent panel release) or the Qolsys IQ Panel 4 345Mhz version. We only sell the Qolsys panels at this time. You can find the 345Mhz version of the panel below.
It would be compatible with 345Mhz 2GIG sensors. It would not work with the TS1 secondary keypads , those would need to be replaced with a compatible secondary keypad like the IQ Remote.
If I send you the old panel can you download the programming and upload it into a new panel?
No, you would program sensors into the new panel after receiving it. A guide to programming the IQ Panel 4 345Mhz version is found below:
If you would like to try a new transceiver instead you would need the XCVR2 for compatibility with any TS1 keypads.