Extracted from these lines
[comment u/TheScienceTM] All that junk is discontinued. Take this as an opportunity to swap the system. Those bosch FPD panels are terrible.
[comment u/fbody41999] Recommend a system upgrade, maybe an ebay part but you aren't guaranteed that the part will work either if its used. For now it'll be bandaid repairs until they replace the entire system.
[comment u/omgitsmesaaa] Just give rid of the whole fire system and upgrade. Wasting your time
