Riddle me this.
We have a Multiplus 12 3000 120-50 12V and 675Ah of 12V AGM batteries on our sailboat.
The Multiplus cycles on and off. It stays on for 15 seconds and turns off for 8 seconds. I timed it for 5 minutes this morning looking for a pattern. I then plugged it into my laptop with the MK3-USB cable and connected it to Victron Connect to look there for anything. And the Multiplus stopped cycling. I quit Victron Connect and it stopped cycling. Run Victron Connect and it stops cycling. Next, following the VE.Bus thread, I disconnected the 2 VE.Bus cables (MK3-USB and BMV-712) and now the unit won't come on at all. I plugged in the BMV-712 cable and it came on and started cycling on and off again on the same pattern.
We have had similar difficulties with this unit since I installed it in November 2021.
Has anyone seen this sort of behavior before?
What is or might be causing it?
Most important, can it be fixed?