C09
Cell overtemperature.
C09Cell overtemperature.Fault
Cell over-temperature fault. LED pattern: LED1 ON, LED2 OFF, LED3 OFF, LED4 ON.
Restart the unit. if the error persists, contact the repair center.
Felicitysolar FLA12100 12.5Kwh Battery Energy Storage System User Manual.pdf · page 1C09Cell overtemperature.Fault— high
Cell temperature exceeded the upper limit.
Restart the unit. if the error persists, contact the repair center.
Felicitysolar FLA48200 48V 200Ah 10kWh Lithium Phosphate Battery User Manual.pdf · page 13C09Cell overtemperature.Critical
Battery cell temperature has exceeded its upper protection threshold.
Restart the unit. if the error persists, contact the repair center.
6peluqppy_66a93554057c8.pdf · page 13C09C09Fault
Cell overtemperature.
Restart the unit. if the error persists, contact the repair center.
FLA48250-EU_Manual.pdf · page 8C09Cell overtemperature.Fault
Battery cell over-temperature protection triggered.
Cell temperature exceeded upper limit (charging temperature range 0-55°C, discharging -20-55°C).
Restart the unit. if the error persists, contact the repair center.
felicitysolar FLA48500 LiFePO4 Battery System for Households User Guide.pdfC09Zell-Übertemperatur.Fault
Cell overtemperature. Temperature of a battery cell exceeded the upper protection limit.
Cell temperature above limit (Zellentemperatur über der Schutzgrenze). Possibly excessive ambient temperature, high current, or impaired ventilation.
Restart the unit. if the error persists, return to repair centre. Verify ambient temperature and ventilation.
Benutzerhandbuch - Felicity FLS48100SG2.pdfC09Cell overtemperature.Fault
Battery cell over-temperature protection triggered.
Cell temperature exceeded upper limit (charging temperature range 0-55°C, discharging -20-55°C).
Restart the unit. if the error persists, contact the repair center.
HE-GF-FLA-48500 Manual_20250327_EN.pdfC09Single cell overtemperature.Fault
Individual-cell over-temperature fault displayed on the LCD BMS fault code / flag screen (section 4.4). Example screen on page 7 shows '52.0V / C09 / 70%' with the fault icon constant.
Cells heated above the safe operating temperature. Per section 2.3 the discharging temperature range is -20 to +60 degC and the charging temperature range is 0 to +55 degC.
Restart the unit, if the error persists, contact the repair center.
358-010291-07.pdf · page 9C09Single cell overtemperature.Fault
An individual cell temperature has exceeded the operating limit.
Cell temperature above safe upper threshold (likely high ambient temperature or excessive current).
Restart the unit; if the error persists, contact the repair center.
Manual-LPBF48200-H.pdf · page 10C09C09Fault
Restart the unit, if the error persists, contact the repair center.
Felicitysolar LPBF48350 17.5kWh 48V Solar Battery Pack with BMS User Guide.pdfC09Cell overtemperature.Fault
An individual cell temperature exceeded the upper protection threshold.
Restart the unit. if the error persists, contact the repair center.
LUX-E-48100LG03-Lithium-Battery-User-Guide.pdf · page 13C09C09Fault
Restart the unit. if the error persists, contact the repair center.
LUX-E-48200LG03-Lithium-Battery-User-Guide.pdf · page 13C09C09Fault
Restart the unit. if the error persists, contact the repair center.
LUX-E-48230.250LG03-Lithium-Battery-User-Guide.pdfC09C09Fault
Cell overtemperature.
Restart the unit, if the error persists, contact the repair center.
LUX-X-48050LG01-low-voltage-battery-user-guide.pdf · page 17C09Cell overtemperature.Critical
A battery cell temperature has exceeded the upper protection limit.
Restart the unit; if the error persists, contact the repair center.
LUX-X-48100LG01-Litium-Battery-User-Guide.pdf · page 17C09Cell overtemperature.Critical
A battery cell temperature has exceeded the upper protection limit.
Restart the unit, if the error persists, contact the repair center.
358-S010024-03LUX-X-48100LG01-User-manual_compressed.pdf · page 23C09Cell overtemperature.Fault
An individual cell temperature exceeded the upper protection threshold.
Restart the unit. if the error persists, contact the repair center.
LUX-Y-4828048300LG01-Lithium-Battery-User-Guide.pdf · page 8Compiled from official FelicityESS user manuals. Always consult your device manual and a qualified technician before performing repairs.