1 - Download the manual for your inverter/charger here:
https://www.magnum-dimensions.com/fi...token=F05FtbfZ
2 - Determine which remote panel you have and download it's manual here:
https://www.magnum-dimensions.com/re...emote-controls
3 - Lookup your message in the Remote Panel's manual and follow the instructions for troubleshooting/resolution or:
4 - Follow the instructions in the Inverter/Charger manual to reset the the device and see if life goes on.