Is error BMS TEMPERATURE HIGH a fault or a warning?

BMS TEMPERATURE HIGH is a fault code: the battery enters protection and stops normal operation until it is cleared.

How do I clear or fix error BMS TEMPERATURE HIGH?

BMS protection flag. Check ambient temperature, ensure ventilation, operate within 0-55 C charge / -20 to 55 C discharge.

BMS TEMPERATURE HIGH

Felicity battery error BMS TEMPERATURE HIGH

BMS TEMPERATURE HIGH

Fault — the battery enters fault protection and stops normal operation until the fault is cleared — how it is shown (LED pattern or display code) depends on the model.

LUX-X-48050LG01

BatteryFault

Also applies to:LUX-X-48050LCG01LUX-X-48050LMG01LUX-X-48050LG01M2LUX-X-48050LG01M3LUX-X-48050LG01M4

What it means

BMS TEMPERATURE HIGH — BMS internal temperature above safe operating range.

Cause: BMS overheating from high ambient temperature, poor ventilation, or sustained high-current operation.

How to fix it

BMS protection flag.
Check ambient temperature, ensure ventilation, operate within 0-55 C charge / -20 to 55 C discharge.

Source: LUX-X-48050LG01-low-voltage-battery-user-guide.pdf, p.16

Frequently asked questions

What does error BMS TEMPERATURE HIGH mean on a Felicity battery?: BMS TEMPERATURE HIGH means: BMS TEMPERATURE HIGH. BMS overheating from high ambient temperature, poor ventilation, or sustained high-current operation.
Is error BMS TEMPERATURE HIGH a fault or a warning?: BMS TEMPERATURE HIGH is a fault code: the battery enters protection and stops normal operation until it is cleared.
How do I clear or fix error BMS TEMPERATURE HIGH?: BMS protection flag. Check ambient temperature, ensure ventilation, operate within 0-55 C charge / -20 to 55 C discharge.

Related error codes

Other codes on the LUX-X-48050LG01

All LUX-X-48050LG01 codes

Prefer the full written guide? Read the complete Felicity inverter error-code guide

Compiled from official Felicity user manuals. Always consult your device manual and a qualified technician before performing repairs.