How do I clear or fix error E9?

Power down the inverter, wait 5 minutes for capacitors to discharge, then restart. If the fault recurs immediately or repeatedly, record the exact code and contact your installer or the manufacturer's service line.

Felicity inverter error E9

Hard Curr Over

Fault — the inverter cuts its output and the red LED stays solid until the fault is cleared.

E-CHO-SI3KS2

InverterFault

Also applies to:E-CHO-SI5KS2E-CHO-SI8KS2

What it means

Hard Curr Over — Hardware current over-protection triggered.

Cause: The hardware over-current protection circuit tripped: current through the power stage rose beyond the hardware limit faster than software protection could act, pointing to a sudden load surge, an output short, or a power-stage fault.

How to fix it

Power down the inverter, wait 5 minutes for capacitors to discharge, then restart.
If the fault recurs immediately or repeatedly, record the exact code and contact your installer or the manufacturer's service line.

Source: E-CHO-SI3KS2-Operation-Manual.pdf, p.16 · E-CHO-SI5KS2-Operation-Manual.pdf · E-CHO-SI8KS2-Operation-Manual.pdf

Frequently asked questions

What does error E9 mean on a Felicity inverter?: E9 means: Hard Curr Over. The hardware over-current protection circuit tripped: current through the power stage rose beyond the hardware limit faster than software protection could act, pointing to a sudden load surge, an output short, or a power-stage fault.
Is error E9 a fault or a warning?: E9 is a fault code: the inverter cuts its output and the red LED stays solid until it is cleared.
How do I clear or fix error E9?: Power down the inverter, wait 5 minutes for capacitors to discharge, then restart. If the fault recurs immediately or repeatedly, record the exact code and contact your installer or the manufacturer's service line.

Related error codes

Other codes on the E-CHO-SI3KS2

All E-CHO-SI3KS2 codes All E-CHO-SI5KS2 codes All E-CHO-SI8KS2 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.