HESP series hybrid inverters (single-phase 4-12 kW and three-phase 8-12 kW)
SRNE 35 error code
Parallel ID (communication address) setting error (ParaAddrErr): two units share the same parallel address.
Likely causes
- Duplicate parallel ID in the stack
- Parallel function not enabled on one unit
- Address changed during service and not restored
Checks to run, in order
- 1Read the parallel ID on each unit
- 2Check that the parallel setting is enabled on every unit
- 3Confirm the cabling matches the address plan
Fixes
- Assign a unique ID to each inverter
- Enable parallel mode where required
- Restart the stack after correcting addresses
When to escalate
Record the address plan on the site sheet; if the stack still faults after unique IDs are set, the distributor should check the communication hardware.
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 35 mean?
Parallel ID (communication address) setting error (ParaAddrErr): two units share the same parallel address.
How do I fix SRNE 35?
Assign a unique ID to each inverter Enable parallel mode where required Restart the stack after correcting addresses
When should I escalate SRNE 35?
Record the address plan on the site sheet; if the stack still faults after unique IDs are set, the distributor should check the communication hardware.
Can I reset SRNE 35 myself?
Only after isolating the AC and DC sides and running the checks above. If SRNE 35 returns immediately, stop resetting it and escalate; a repeating fault usually points to a real circuit, battery or hardware problem.
Which models show SRNE 35?
SRNE 35 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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