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SG04LP3/SG05LP1 hybrid families and SG01HP3-EU-DM2

Deye F23 error code

Transient AC leakage current above the limit.

Likely causes

  • PV-side ground leakage
  • Moisture or condensation in the array
  • Switching surge from a connected load
  • Damaged cable insulation

Checks to run, in order

  1. 1Check the PV-side cable ground connection
  2. 2Megger the array
  3. 3Inspect for moisture in connectors and junction boxes
  4. 4Restart two to three times

Fixes

  • Clear the leakage path and dry the parts
  • Restart the system two to three times

When to escalate

If F23 recurs after clearing the leakage, the distributor should test the leakage-current sensor.

Fix it with the right tools

Check the system around the fault before replacing parts: load, battery bank, PV string and commissioning settings. If you need a second opinion, send the code and your inverter model to our team.

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Before you open the inverter

  • Isolate both the AC and DC sides, then confirm the display is dead before touching terminals.
  • Use insulated tools and one hand where possible. DC arcs do not self-extinguish like AC.
  • If you see burnt terminals, swollen cells, leaking electrolyte or a burning smell, stop and escalate instead of resetting the fault.

Questions installers ask

What does Deye F23 mean?

Transient AC leakage current above the limit.

How do I fix Deye F23?

Clear the leakage path and dry the parts Restart the system two to three times

When should I escalate Deye F23?

If F23 recurs after clearing the leakage, the distributor should test the leakage-current sensor.

Can I reset Deye F23 myself?

Only after isolating the AC and DC sides and running the checks above. If Deye F23 returns immediately, stop resetting it and escalate; a repeating fault usually points to a real circuit, battery or hardware problem.

Which models show Deye F23?

Deye F23 is documented for SG04LP3/SG05LP1 hybrid families and SG01HP3-EU-DM2. Confirm the code on your own unit's display or manual before ordering parts.

More Deye error codes

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Guidance reviewed 17 October 2026 by the Mishka Energy installer team. Error codes vary by brand, model family and firmware; confirm against the manufacturer manual.

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