90Fault

Felicity inverter error 90

DSP BootLoad not written

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

The exact meaning depends on your model:

IVCM1012 PRO

InverterFault

Also applies to:IVCM2024 PROIVCM3024 PRO

What it means

DSP BootLoad not written — DSP BootLoad is not written.

Cause: The DSP's bootloader firmware is missing or was never programmed, so the main processor cannot start. This is a factory or firmware fault that requires service.

How to fix it

Contact the repair center.

Source: ICM.pdf, p.14

IVGM5KL-P1G1

InverterFault

Also applies to:IVGM6KL-P1G1IVGM7K6L-P1G1IVGM8KL-P1G1

What it means

Parallel Host Lost — Parallel host inverter lost.

Cause: The paralleled units have lost contact with the host (master) inverter — usually a parallel communication cable fault or the host powering down.

How to fix it

  1. Check whether Parallel cables are firmly and correctly connected
  2. Restart the system 2~3 times
  3. Seek help from us, if can not go back to normal state.

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

Frequently asked questions

What does error 90 mean on a Felicity inverter?
It depends on the model — 2 devices use code 90. On the IVCM1012 PRO it means: DSP BootLoad not written. The card for each model on this page gives its exact meaning and fix.
Is error 90 a fault or a warning?
90 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 90?
Contact the repair center. The exact steps for each affected model are listed on this page.

Related error codes

Other codes on the IVCM1012 PRO

All IVCM1012 PRO codes

Other codes on the IVGM5KL-P1G1

All IVGM5KL-P1G1 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.