SG04LP3/SG05LP1 hybrid families and SG01HP3-EU-DM2
Deye F58 error code
Battery BMS communication lost while 'BMS_Err-Stop' is enabled.
Likely causes
- CAN or RS485 cable disconnected
- Wrong BMS protocol or baud rate
- BMS powered down
- Address or protocol mismatch
Checks to run, in order
- 1Check the BMS communication cable
- 2Check the BMS protocol setting
- 3Check BMS power and status
- 4Check the termination resistor
Fixes
- Reseat or replace the communication cable
- Set the correct BMS protocol
- Restart the inverter and BMS
- Disable 'BMS_Err-Stop' only if the battery is set up for voltage-mode operation
When to escalate
If communication cannot be restored, involve the distributor and the battery supplier together.
Fix it with the right tools
Check the system around the fault before replacing parts: load, battery bank, PV string and commissioning settings. If you need a second opinion, send the code and your inverter model to our team.
Before you open the inverter
- Isolate both the AC and DC sides, then confirm the display is dead before touching terminals.
- Use insulated tools and one hand where possible. DC arcs do not self-extinguish like AC.
- If you see burnt terminals, swollen cells, leaking electrolyte or a burning smell, stop and escalate instead of resetting the fault.
Questions installers ask
What does Deye F58 mean?
Battery BMS communication lost while 'BMS_Err-Stop' is enabled.
How do I fix Deye F58?
Reseat or replace the communication cable Set the correct BMS protocol Restart the inverter and BMS Disable 'BMS_Err-Stop' only if the battery is set up for voltage-mode operation
When should I escalate Deye F58?
If communication cannot be restored, involve the distributor and the battery supplier together.
Can I reset Deye F58 myself?
Only after isolating the AC and DC sides and running the checks above. If Deye F58 returns immediately, stop resetting it and escalate; a repeating fault usually points to a real circuit, battery or hardware problem.
Which models show Deye F58?
Deye F58 is documented for SG04LP3/SG05LP1 hybrid families and SG01HP3-EU-DM2. Confirm the code on your own unit's display or manual before ordering parts.
More Deye error codes
- Deye F01PV input polarity is reversed at one or both DC inputs.
- Deye F02PV insulation resistance to earth is below the safety limit.
- Deye F03Ground fault detected on the PV array (GFDI).
- Deye F04GFDI ground-failure alarm: the PV array or inverter is not properly earthed.
- Deye F05Control-board EEPROM read failure.
- Deye F06Control-board EEPROM write failure.
Guidance reviewed 17 October 2026 by the Mishka Energy installer team. Error codes vary by brand, model family and firmware; confirm against the manufacturer manual.
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