System has worked well for 5 years in off grid setup. Symptom is a loud hum with rapid flickering of LED lighting. After switching all off worked again for a short period but reverted to loud hum. Finally the Multiplus shut down totally.
asked
Multiplus 24/2000/50 loud hum and flickering lights
Much more information is needed.
but try the below
Downloading the Victron tool Kit, this will then tell you what the flashing lights mean
Suspect
Low battery voltage
overloading of the inverter
overheating (cooling fan not working).
Needed as the load humming is happening
1. whats the battery voltage and dc amps being drawn
2. whats the AC output voltage and amps and or watts being used.
3. as its off grid whats charging the batteries and how is it connected
4. what exactly are the flashing lights doing
5. a diagram of how everything is connected would also help
thanks Paul B
I expect to be on site next week and will follow up with more details
