Partner Academy · Deye
Fault
F8
GFDI Relay Failure
GFDI protection relay fault
Deye service: GFDI Relay Failure — power-board service.
Field checks
- GFDI earth relay fault — power board needs service repair.
FAQ
What does Deye F8 mean?
GFDI protection relay fault
What should I check for Deye F8?
- GFDI earth relay fault — power board needs service repair.
When should I contact Inversol?
After noting the exact code, model, SN, and operating mode, complete the field checks. If the code returns after a clean power cycle, contact Inversol WhatsApp support with a photo of the display.
Partner lookup — not a substitute for the official Deye service manual or live measurements. Firmware maps can differ by model family.