Deye F23 leakage current / F24 DC insulation impedance. Where do I look?

The short answer

Check PV cable insulation to ground, PV connections and PE; restart 2–3 times; persistent means support.

Plain explanation

From the Deye manual for the SUN-SG04LP1 hybrid: Installer checks PV cable insulation to ground. Check PV-to-inverter connections and PE to ground. 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

Installer checks PV cable insulation to ground
Check PV-to-inverter connections and PE to ground
Restart 2–3 times
Persists → Deye support

Source

Deye SUN-3.6-6K-SG04LP1 Manual V4.0.0, Chart 7-1 Fault information, Chart 7-1 F23 / F24www.deyeinverter.com ↗

Where installers ask this

Earthing issue? AC current on DC side (r/Deye)

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.