94Fault

Felicity inverter error 94 (F94)

CAN ID Conflict

Also displayed as F94 on some models.

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

The exact meaning depends on your model:

IVGM5KL-P1G1

InverterFault

Also applies to:IVGM6KL-P1G1IVGM7K6L-P1G1IVGM8KL-P1G1

What it means

CAN ID Conflict — CAN ID of different inverters is in conflict.

Cause: Two or more inverters on the parallel CAN bus are set to the same CAN ID — or two units are both configured as master in one phase — so their messages collide.

How to fix it

  1. Please check whether CAN ID of different inverters is same
  2. Please check whether there are two masters in one phase.

Source: Felicitysolar IVGM Series Hybrid inverter Instruction Manual.pdf, p.56

T-REX-50KHP3G01

InverterFault

What it means

PV side busbar rapid overvoltage — Bus voltage too high, shutdown and restart.

Cause: The PV-side DC bus voltage rose above its protection ceiling too quickly for normal regulation to respond — a fast transient overvoltage rather than a slow drift.

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: t-rex-25-50khp3g01-user-guide-en.pdf, p.49

Models that show 94

Frequently asked questions

What does error 94 mean on a Felicity inverter?

It depends on the model — 2 devices use code 94. On the IVGM5KL-P1G1 it means: CAN ID Conflict. The card for each model on this page gives its exact meaning and fix.

Is error 94 a fault or a warning?

94 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 94?

1. Please check whether CAN ID of different inverters is same; 2. The exact steps for each affected model are listed on this page.

Related error codes

Other codes on the IVGM5KL-P1G1

94 is in the "Fault" class on the IVGM5KL-P1G1: 61 of the 61 codes documented for it.

All IVGM5KL-P1G1 codes

Other codes on the T-REX-50KHP3G01

94 is in the "Fault" class on the T-REX-50KHP3G01: 105 of the 105 codes documented for it.

All T-REX-50KHP3G01 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.