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Partner Academy · Deye

Fault F29

Parallel CANBus Fault

Parallel CAN communication bus fault

Deye service: Parallel CANBus Fault — CAN cable / 120 Ω ends.

Field checks

  1. Continuity-check the parallel CAN link cable.
  2. Confirm 120 Ω terminators on the first and last inverters in the group.

FAQ

What does Deye F29 mean?
Parallel CAN communication bus fault
What should I check for Deye F29?
  1. Continuity-check the parallel CAN link cable.
  2. Confirm 120 Ω terminators on the first and last inverters in the group.
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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