HESP series hybrid inverters (single-phase 4-12 kW and three-phase 8-12 kW)
SRNE 60 error code
BMS battery low temperature alarm: the BMS reports the battery temperature below its low-temperature limit.
Likely causes
- Battery installed in a cold room or exposed to night cold
- BMS temperature sensor fault
- Charging attempted below the battery's low-temperature charge limit
- Poor airflow or a failed heater on a heated pack
Checks to run, in order
- 1Read battery temperature from the BMS app and compare cells
- 2Check the ambient temperature at the battery
- 3Confirm the BMS has not blocked charging
- 4Check the heater circuit if the pack is heated
Fixes
- Warm the battery room or enable the pack heater
- Stop charging until the pack is above its low-temperature limit
- Recheck after the pack warms and clears the alarm
When to escalate
The manual directs BMS alarms to the BMS factory; if one cell reads far below the others, ask the distributor to check the sensor and cell balance.
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 60 mean?
BMS battery low temperature alarm: the BMS reports the battery temperature below its low-temperature limit.
How do I fix SRNE 60?
Warm the battery room or enable the pack heater Stop charging until the pack is above its low-temperature limit Recheck after the pack warms and clears the alarm
When should I escalate SRNE 60?
The manual directs BMS alarms to the BMS factory; if one cell reads far below the others, ask the distributor to check the sensor and cell balance.
Can I reset SRNE 60 myself?
Only after isolating the AC and DC sides and running the checks above. If SRNE 60 returns immediately, stop resetting it and escalate; a repeating fault usually points to a real circuit, battery or hardware problem.
Which models show SRNE 60?
SRNE 60 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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