24|3000|70 complete shutdown please help

Hi, I would be very grateful if someone could help me. We experienced a problem with our 24|3000|70 inverter today. When all power completely shut down. No lights are showing on the inverter at all. I’ve been through the manual but I have no idea what to do. Re charging via a plug does nothing… Please can somebody help guide me. Unfortunately, I am not that experienced with inverters so a step by step Idiots guide would be wonderful. Thank you

Hi,
First step would be to check the battery voltage, the battery fuse(s), and any disconnect switch for the battery.
Please can you also try to provide a few more details about your system?