Hysolis 48V 216Ah Wall-Mount Battery error codes
8 codes from the official Hysolis manual (HS2161611K-HP), each with the manual page. For 8 of them the manual says to contact an authorized service dealer.
Applies to: Hysolis 48V 216Ah Wall-Mount Battery.
| Code | What it means | What to do | Service | Manual |
|---|---|---|---|---|
| Charging Overcurrent protection | The battery has stopped charging because of overcurrent protection. ALM is on and the SOC LEDs are off. | Do not bypass the overcurrent protection. Seek qualified support for recurring alarms. Check the inverter charge settings with the installer. | dealer | p. 12 |
| Charging Warning | A charging warning is active, with ALM blinking 3. During an overcharge warning, the highest active SOC LED blinks 2 instead. | Record the LED pattern and the inverter message. If the alarm persists, contact Hysolis Support. Do not continue operating with repeated alarms. | dealer | p. 12 |
| Discharging Low-voltage protection | Discharging has stopped because of low-voltage protection. ALM blinks 3 and the RUN and SOC LEDs are off. | Do not bypass the protective shutdown. Review system alarms and load requirements with the installer. If the alarm persists, contact Hysolis Support. | dealer | p. 12 |
| Discharging Overcurrent / short circuit | Discharging has stopped because of an overcurrent or short-circuit condition. ALM is on and the RUN and SOC LEDs are off. | Do not bypass the overcurrent or short-circuit protection. Review system alarms and load requirements with the installer. Seek qualified support for recurring alarms. | dealer | p. 12 |
| Discharging Warning | A discharging warning is active. RUN blinks 3, ALM blinks 3, and the SOC LEDs show the approximate charge level. | Record the LED pattern and the inverter message. Review system alarms and load requirements with the installer. If the alarm persists, contact Hysolis Support. | dealer | p. 12 |
| Standby Warning | The battery is in standby with a warning indication. RUN blinks 1, ALM blinks 3, and the SOC LEDs show the approximate charge level. | Record the observed LED pattern and the inverter message. If the alarm persists, contact Hysolis Support. | dealer | p. 12 |
| System fault | A fault in a cell, voltage or current sensor, or charge/discharge MOSFET has stopped charging and discharging. ALM is on and the RUN and SOC LEDs are off. | Record the LED pattern. If the alarm is abnormal or persists, stop operation and contact Hysolis Support. Do not attempt to open the enclosure or reset the protection. | dealer | p. 12 |
| Temperature Protection | Charging and discharging have stopped because of temperature protection. ALM is on and the RUN and SOC LEDs are off. | Check the operating temperature against the published charging and discharging ratings. Do not bypass the protection. Seek qualified support if the alarm recurs or persists. | dealer | p. 12 |
Source: official Hysolis manual, read 2026-11-03. "Owner" means the manual lists steps you can take; "dealer" means it directs you to authorized service. Fuel, gas and electrical work on generators is for qualified technicians; follow the manual's safety section.