CASE-OVERHEATWarning

Felicity battery error CASE-OVERHEAT

Battery Pack Case Overheating (Abnormal)

Warning — a protection warning — the battery keeps running, but deal with the cause before it escalates.

FLB48314TG1

BatteryWarning

What it means

Battery Pack Case Overheating (Abnormal) — Surface temperature of case rises abnormally (exceeding normal heat range), accompanied by unusual noises or smells. Note: Some case warmth during normal operation is expected due to MOSFET heat dissipation through the case.

Cause: The BMS MOSFETs dissipate heat through the case, so some warmth is normal — but a rise beyond the usual heat range, especially with unusual noises or smells, points to an internal fault or to operating the pack in an enclosed, hot, or poorly ventilated spot.

How to fix it

  1. Stop using the battery pack immediately and contact professional technicians for inspection and maintenance.
  2. Do not attempt to disassemble or handle yourself.
  3. Ensure proper ventilation around the case during use.

Source: Felicity-FLB48314TG1-Manual.pdf

Frequently asked questions

What does error CASE-OVERHEAT mean on a Felicity battery?
CASE-OVERHEAT means: Battery Pack Case Overheating (Abnormal). The BMS MOSFETs dissipate heat through the case, so some warmth is normal — but a rise beyond the usual heat range, especially with unusual noises or smells, points to an internal fault or to operating the pack in an enclosed, hot, or poorly ventilated spot.
Is error CASE-OVERHEAT a fault or a warning?
CASE-OVERHEAT is a warning: the unit keeps running. Fix the underlying condition before it escalates.
How do I clear or fix error CASE-OVERHEAT?
Stop using the battery pack immediately and contact professional technicians for inspection and maintenance. Do not attempt to disassemble or handle yourself.

Related error codes

Other codes on the FLB48314TG1

All FLB48314TG1 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.