MISHKA
ResidentialBusiness

Hybrid inverters (F-series fault codes)

Deye F13 error code

Grid loss / grid voltage or frequency out of range.

Likely causes

  • Actual grid outage
  • Grid voltage outside the configured window
  • Loose AC input terminals

Checks to run, in order

  1. 1Confirm supply at the main DB
  2. 2Measure grid voltage and frequency
  3. 3Inspect AC input wiring

Fixes

  • Widen grid settings only within safe limits
  • Correct wiring
  • Wait for grid restoration

When to escalate

Persistent nuisance trips despite healthy grid supply should be reviewed with the distributor.

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 F13 mean?

Grid loss / grid voltage or frequency out of range.

How do I fix Deye F13?

Widen grid settings only within safe limits Correct wiring Wait for grid restoration

When should I escalate Deye F13?

Persistent nuisance trips despite healthy grid supply should be reviewed with the distributor.

More Deye error codes

Search all error codesCheck the product specs

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.

Back to troubleshooting