Im having a weird issue with my fireshield 10 plus. When i have the annunciator power wires connected to the panels 24V aux terminals, i get a battery trouble light thats flashing. (Flash = charger trouble, on = no bat or low bat) but when i disconnect the wires i get the annunciator trouble of course, but i dont ever get the battery trouble lights.
Try putting in batteries
Well, he might have batteries in.
I have batteries, im Going to eventually buy new batteries and see if that works