Deye · PV inverters · Deye SUN-SG05LP1-EU (single-phase hybrid inverter, 3.6–8 kW)
F29Parallel CANBus fault
Name in the manufacturer's documentation (user manual): Parallel CANBus fault
[1]
In plain words (editorial)
Parallel CAN bus fault. During start-up of a parallel system the inverters report F29 and it disappears automatically when all inverters are ON. Otherwise the manual says to check the parallel communication cable and the communication address settings.
When to call a service technician: If the fault still exists, contact your installer or Deye support.
✎ editorial – written from the cited sources, not a manufacturer statement. Status: draft.
For technicians
Steps given by the manufacturer (source text)
Notes from the documentation
- During the parallel system startup period, inverters will report F29. when all inverters are in ON status, it will disappear automatically[4]
⚠ Work on refrigerant circuits, mains electricity and PV DC wiring is for qualified technicians only.
The Polish page has more detail (plain-language explanation, safe checks, guides): Read in Polish →
Sources
Every statement has a footnote to the document and PDF page. “Quote verified” means the quote was found automatically in the text of that page.
- [1] Hybrid Inverter User Manual – SUN-3.6K/5K/6K/7K/7.6K/8K-SG05LP1-EU (ed. 2024-08) (instructions_sun-3.6-8k-sg05lp1-eu_240813_en) , p. 46 official manufacturer document quote verified
F29 Parallel CANBus fault
- [2] Hybrid Inverter User Manual – SUN-3.6K/5K/6K/7K/7.6K/8K-SG05LP1-EU (ed. 2024-08) (instructions_sun-3.6-8k-sg05lp1-eu_240813_en) , p. 46 official manufacturer document quote verified
When in parallel mode, check the parallel communication cable connection and hybrid inverter communication address setting
- [3] Hybrid Inverter User Manual – SUN-3.6K/5K/6K/7K/7.6K/8K-SG05LP1-EU (ed. 2024-08) (instructions_sun-3.6-8k-sg05lp1-eu_240813_en) , p. 46 official manufacturer document quote verified
If the fault still exists, please contact us for help
- [4] Hybrid Inverter User Manual – SUN-3.6K/5K/6K/7K/7.6K/8K-SG05LP1-EU (ed. 2024-08) (instructions_sun-3.6-8k-sg05lp1-eu_240813_en) , p. 46 official manufacturer document quote verified
During the parallel system startup period, inverters will report F29. when all inverters are in ON status, it will disappear automatically