Internal fault
Fronius · Primo GEN24
What does 701 mean?
The Fronius Primo GEN24 208-240 inverter has detected a general internal fault that prevents it from operating safely or correctly. This is a broad error indicating an unspecified hardware or software malfunction within the inverter itself.
Common Causes
- Internal fault.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Perform a full power cycle of the Fronius Primo GEN24 208-240 inverter: Open the AC circuit breaker, then the DC disconnector, wait for a few minutes, and then reclose them in reverse order (DC first, then AC).
- 2
Check the inverter's event log for any more specific fault codes that might have occurred prior to or concurrently with the 701 error.
- 3
Ensure the inverter's firmware is the latest version available; sometimes, internal issues are addressed in software updates.
- 4
Visually inspect the inverter's interior (if safely accessible by qualified personnel) for any obvious signs of damage, such as burnt components or loose connections.
- 5
If the fault persists after power cycling and firmware verification, contact Fronius service, providing them with the error code and any relevant system logs for advanced diagnostics.