E12Fault

Felicity inverter error E12

Amb Temp 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

Amb Temp Over — Ambient temperature over the allowed limit.

Cause: The ambient temperature measured by the inverter is above its permitted operating limit: a hot installation location, direct sunlight, or inadequate ventilation around the unit.

How to fix it

  1. Power down the inverter, wait 5 minutes for capacitors to discharge, then restart.
  2. 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.17 · E-CHO-SI5KS2-Operation-Manual.pdf · E-CHO-SI8KS2-Operation-Manual.pdf

Frequently asked questions

What does error E12 mean on a Felicity inverter?
E12 means: Amb Temp Over. The ambient temperature measured by the inverter is above its permitted operating limit: a hot installation location, direct sunlight, or inadequate ventilation around the unit.
Is error E12 a fault or a warning?
E12 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 E12?
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.