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Partner Academy · Deye

Fault F40

Internal DC Over Current

Internal DC overcurrent fault

Deye service: Internal DC Over Current — internal DC short — service.

Field checks

  1. Internal DC short / overcurrent — service repair required.

FAQ

What does Deye F40 mean?
Internal DC overcurrent fault
What should I check for Deye F40?
  1. Internal DC short / overcurrent — service repair required.
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.

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