HESP series hybrid inverters (single-phase 4-12 kW and three-phase 8-12 kW)
SRNE 58 error code
BMS communication error: the inverter cannot communicate with the lithium battery BMS.
Likely causes
- Communication cable not connected, wrong port or wrong pinout
- BMS protocol item not set to the battery's protocol
- Battery address/DIP switch wrong
- BMS powered down or asleep
Checks to run, in order
- 1Check the communication cable between inverter and battery, including pinout
- 2Verify the BMS protocol setting matches the battery brand
- 3Check the battery address/DIP setting
- 4Confirm the battery is awake and its comms LED is active
Fixes
- Correct the cable and pinout
- Select the correct lithium protocol
- Set the right battery address and wake the BMS
- Restart the inverter after comms are restored
When to escalate
If the battery communicates with the manufacturer's software but not with the inverter, the distributor should confirm the protocol version supported by the firmware.
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 SRNE 58 mean?
BMS communication error: the inverter cannot communicate with the lithium battery BMS.
How do I fix SRNE 58?
Correct the cable and pinout Select the correct lithium protocol Set the right battery address and wake the BMS Restart the inverter after comms are restored
When should I escalate SRNE 58?
If the battery communicates with the manufacturer's software but not with the inverter, the distributor should confirm the protocol version supported by the firmware.
Can I reset SRNE 58 myself?
Only after isolating the AC and DC sides and running the checks above. If SRNE 58 returns immediately, stop resetting it and escalate; a repeating fault usually points to a real circuit, battery or hardware problem.
Which models show SRNE 58?
SRNE 58 is documented for HESP series hybrid inverters (single-phase 4-12 kW and three-phase 8-12 kW). Confirm the code on your own unit's display or manual before ordering parts.
More SRNE error codes
- SRNE 01Battery undervoltage alarm: the battery voltage has fallen below the [Batt. Under volt. alarm] value under Battery Setup, and the alarm does not by itself stop the output.
- SRNE 02Battery discharge average current overcurrent, detected by software (BatOverCurrSw); the inverter limits or stops discharge.
- SRNE 03Battery not connected (BatOpen): the inverter cannot see a battery on the DC side and stops the output.
- SRNE 04Battery undervoltage stop-discharge (BatLowEod): the battery has reached the low-voltage cut-off and the inverter has stopped discharging.
- SRNE 05Battery overcurrent detected by hardware protection (BatOverCurrHw); the inverter shuts the output down.
- SRNE 06Charging overvoltage protection (BatOverVolt): battery voltage rose above the over-voltage cut-off and charging was stopped.
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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