LED INDICATION
ACR STATE OR CONDITION
Remote Switch Set to "AUTO" or no Remote Switch Installed
LEDs OFF
Batteries are isolated
LEDs ON
Batteries are combined
LEDs slow steady blink, ON-OFF
Start or Engine Isolation is causing batteries to be isolated
LEDs quick steady blink, ON-OFF...
that little charger wont handle a load. I would say the solar is a supplement to the charging system for when your vehicle is sitting there not being used. just to keep the batts topped off...
if the same issue is coming up more than once I would be looking at the wiring. try soldering the all the terminals after you crimp. is that relay fused as well? not the fuses for the batteries, but a small fuse for powering the relay itself?
its supposed to flash on startup. its isolating the batteries because one is discharging (because of startup). mine does the same thing but I have the 120a. the led will stay illuminated for a few when you shut it down...