Victron MPPT stops charging with Err 38 PV input shutdown. How do I recover it?

The short answer

Update firmware, check battery voltage setting and other chargers, then disconnect panels and battery for 3 min.

Plain explanation

From the Victron manual for the SmartSolar MPPT: Update firmware. Check battery voltage setting in VictronConnect. The rest of the checklist is below; work through it in order. Installer only: DC and AC work on a live PV system is dangerous, so owners should note the code and call their installer.

Steps from the source

Update firmware
Check battery voltage setting in VictronConnect
Check other charger (e.g. Multi equalise)
Recovery: disconnect panels & battery, 3 min, battery first then panels

Source

Victron MPPT / charger error codes (official docs), Err 38/39/80-87www.victronenergy.com ↗

Where installers ask this

General guidance based on the manufacturer's manual or the named source. Always follow the current manual for your exact model and your national code. DC and AC electrical work is for qualified installers only. Not affiliated with or endorsed by any brand named; trademarks belong to their owners.