Partner Academy · Deye
Fault
F24
DC Insulation Impedance Fault
Critically low DC insulation impedance
Deye service: DC Insulation Impedance Fault — same insulation path as F2.
Field checks
- Measure DC insulation resistance to earth with a megger (target Riso > 1 MΩ).
- Find damaged cable or moisture ingress in MC4 connectors.
FAQ
What does Deye F24 mean?
Critically low DC insulation impedance
What should I check for Deye F24?
- Measure DC insulation resistance to earth with a megger (target Riso > 1 MΩ).
- Find damaged cable or moisture ingress in MC4 connectors.
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.