IVCM1012 PRO

Inverter26 codes
also coversIVCM2024 PROIVCM3024 PRO
26 Fault

About the Felicity IVCM1012 PRO

The Felicity IVCM1012 PRO is a Inverter unit covered by a shared firmware family that includes 3 variants. The error codes listed below apply to every variant in this family — IVCM1012 PRO, IVCM2024 PRO, IVCM3024 PRO. If your unit's exact model number isn't shown in the title but is listed in the "also covers" tags, this is the correct reference page.

How to use this page

Each row below shows an error code, its severity, and a brief description. Click any row to expand the full cause and the recommended fix. The severity dot tells you whether the unit will keep operating (warning), derate (fault), or trip offline (critical). For codes that require an authorized service partner, the recommended-fix block says so explicitly.

03PV charging overcurrent.Fault
Description

PV charging overcurrent.

Recommended fix

Restart the unit, if the error persists, contact the repair center.

Source:ICM.pdf · page 13
04PV temperature is too high.Fault
Description

PV temperature is too high.

Recommended fix

Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.

Source:ICM.pdf · page 13
05High PV voltage.Fault
Description

High PV voltage.

Recommended fix

Please check the voltage of the solar panel, it should be less than 95V. if the voltage is ok, please contact your installer.

Source:ICM.pdf · page 13
06PV relay voltage abnormal.Fault
Description

The PV relay voltage is abnormal.

Recommended fix

Internal components failed. Restart the unit, if the error persists, contact the repair center.

Source:ICM.pdf · page 13
07Battery voltage too high.Fault
Description

Battery voltage is too high.

Recommended fix

Internal components failed. Restart the unit, if the error persists, contact the repair center.

Source:ICM.pdf · page 13ICM.pdf · page 13
08Fan 1 locked.Fault
Description

Fan 1 is locked.

Recommended fix

Check if the Fans wiring connected well. Replace the fan.

Source:ICM.pdf · page 13
09Fan 2 locked.Fault
Description

Fan 2 is locked.

Recommended fix

Check if the Fans wiring connected well. Replace the fan.

Source:ICM.pdf · page 13
10Overload.Fault
Description

Overload.

Recommended fix

Reduce the loads.

Source:ICM.pdf · page 13
11Low battery.Fault
Description

Low battery.

Recommended fix

The battery voltage is too low, it should be charging.

Source:ICM.pdf · page 13
16Primary-secondary CPU communication fault.Fault
Description

The communication between the primary and secondary cpus is faulty.

Recommended fix

Internal components failed. Restart the unit, if the error persists, contact the repair center.

Source:ICM.pdf · page 13
17Overload protection.Fault
Description

Overload protection.

Recommended fix

Reduce the loads and Restart the machine.

Source:ICM.pdf · page 13
19Output short circuit.Fault
Description

Output short circuit.

Recommended fix

Check if wiring is connected well and remove abnormal load.

Source:ICM.pdf · page 13
21OP current sensor failed.Fault
Description

OP (output) current sensor failed.

Recommended fix

Restart the unit, if the error persists, contact the repair center.

Source:ICM.pdf · page 13
22Output voltage too low.Fault
Description

Output voltage is too low.

Recommended fix

Reduce the connected load. Restart the unit, if the error persists, contact the repair center.

Source:ICM.pdf · page 14
23Output voltage too high.Fault
Description

Output voltage is too high.

Recommended fix

Restart the unit, if the error persists, contact the repair center.

Source:ICM.pdf · page 14
24Excessive inverter current.Fault
Description

Excessive inverter current.

Recommended fix

Reduce the connected load by switching off some equipment.

Source:ICM.pdf · page 14
25Inverter hardware current too large.Fault
Description

The inverter hardware current is too large.

Recommended fix

Reduce the connected load by switching off some equipment.

Source:ICM.pdf · page 14
26Inverter voltage soft start fail.Fault
Description

The soft start of the inverter voltage fails.

Recommended fix

Restart the unit, if the error persists, contact the repair center.

Source:ICM.pdf · page 14
29Inverter current sensor faulty.Fault
Description

The inverter current sensor is faulty.

Recommended fix

Contact the repair center.

Source:ICM.pdf · page 14
30Bus voltage too low.Fault
Description

Bus voltage is too low.

Recommended fix

Restart the unit, if the error persists, contact the repair center.

Source:ICM.pdf · page 14
31Bus voltage too high.Fault
Description

Bus voltage is too high.

Recommended fix

AC Surge or internal components failed. Restart the unit, if the error persists, contact the repair center.

Source:ICM.pdf · page 14
33Bus soft start fail.Fault
Description

Bus soft start fail.

Recommended fix

Internal components failed. Restart the unit, if the error persists, contact the repair center.

Source:ICM.pdf · page 14
34Radiator 1 over-temperature.Fault
Description

Overtemperature occurs in radiator 1.

Recommended fix

Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.

Source:ICM.pdf · page 14
35Radiator 2 over-temperature.Fault
Description

Overtemperature occurs in radiator 2.

Recommended fix

Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.

Source:ICM.pdf · page 14
50EEPROM fault.Fault
Description

EEPROM fault.

Recommended fix

Contact the repair center.

Source:ICM.pdf · page 14
90DSP BootLoad not written.Fault
Description

DSP BootLoad is not written.

Recommended fix

Contact the repair center.

Source:ICM.pdf · page 14

Step-by-step troubleshooting checklist

  1. 1.Note the exact code and timing

    Write down the exact code shown on the display, what the unit was doing when it appeared (charging, discharging, idle, grid-tied), and any LEDs or audible alarms. The same code can have different fixes depending on context.

  2. 2.Check the recommended fix on this page

    Find the code in the list below and read the cause + recommended fix. Most warning-level codes can be cleared by following the listed action — usually reducing load, checking wiring, or restarting the unit.

  3. 3.Verify the source manual page

    Each code shows the source manual filename and page number. Open that exact page in the official manual to verify model-specific notes (firmware version, parallel-config notes, regional variants) before acting.

  4. 4.Disconnect AC, DC, and battery before opening

    If a fix requires opening the enclosure or accessing terminals, disconnect AC input, DC PV, and battery in that order. Wait at least 60 seconds for capacitors to discharge before touching any conductors.

  5. 5.Escalate critical codes to authorized service

    Critical codes (short-circuit, IGBT failure, BMS hardware error) should not be cleared by end users. Note the code, model number, and source manual page, then contact an authorized service partner.

Common questions about IVCM1012 PRO error codes

Where can I find the official Felicity IVCM1012 PRO error code manual?
Each code on this page lists the official source manual filename and page number at the bottom. The manuals are published by Felicity on their website; we compile the codes here so you can search across all of them at once instead of opening each PDF.
Is the IVCM1012 PRO the same as other Felicity models?
Some Felicity units share firmware across a family of variants — the same fault codes apply to multiple model numbers. Look at the "also covers" chips below the title to see which other model numbers this page applies to.
What's the most critical code on a Felicity IVCM1012 PRO?
Critical-severity codes (red dot) are the ones that trip the unit offline immediately — typically short-circuit, IGBT, or BMS hardware failures. These are listed first when you filter by severity. Do not bypass them; they indicate a hardware or safety condition that requires service.

Compiled from official Felicity user manuals. Always consult your device manual and a qualified technician before performing repairs.