0x9062Critical

Felicity ESS error 0x9062

Battery cluster SBCU relay drive supply voltage differences

Critical — the ESS unit shuts down and latches a protection fault. Don't keep restarting it — the cause needs checking first.

FLS-ES232LC-S

Energy storage systemCritical

What it means

Battery cluster SBCU relay drive supply voltage differences

Cause: Relay drive supply voltage < 22V.

How to fix it

  1. Send faults externally, limit power, request lower high voltage; if command not received within 5s, cut off the main circuit relay.
  2. Recovers at ≥ 22V.

Source: FLS-ES232LC-S.pdf

Frequently asked questions

What does error 0x9062 mean on a Felicity ESS?
0x9062 means: Battery cluster SBCU relay drive supply voltage differences. Relay drive supply voltage < 22V.
Is error 0x9062 a fault or a warning?
0x9062 is a fault code: the ESS unit enters protection and stops normal operation until it is cleared.
How do I clear or fix error 0x9062?
Send faults externally, limit power, request lower high voltage; if command not received within 5s, cut off the main circuit relay. Recovers at ≥ 22V.

Related error codes

Other codes on the FLS-ES232LC-S

All FLS-ES232LC-S 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.