Where can I find the official Felicity IVEM 6048 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 IVEM 6048 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 IVEM 6048?

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.

What does F01 mean on IVEM 6048?

Fault: Bus voltage is too high. Cause: AC Surge or internal components failed. Fix: Restart the unit, if the error persists, contact the repair center.

What does F02 mean on IVEM 6048?

Fault: Bus voltage is too low. Cause: Internal components failed (inferred from similar fault classes). Fix: Restart the unit, if the error persists, contact the repair center.

What does F03 mean on IVEM 6048?

Fault: Bus soft start fail. Cause: Internal components failed. Fix: Restart the unit, if the error persists, contact the repair center.

What does F04 mean on IVEM 6048?

Fault: Inverter soft start fail. Cause: Internal components failed. Fix: Restart the unit, if the error persists, contact the repair center.

What does F05 mean on IVEM 6048?

Fault: Over current or surge detected by Software. Cause: Software-detected overcurrent or surge condition. Fix: Restart the unit, if the error persists, contact the repair center.

What does F06 mean on IVEM 6048?

Fault: Over current or surge detected by hardware. Cause: Hardware-detected overcurrent or surge condition. Fix: Restart the unit, if the error persists, contact the repair center.

What does F07 mean on IVEM 6048?

Fault: Output voltage is too low. Cause: Connected load is too high or internal failure. Fix: Reduce the connected load. Restart the unit, if the error persists, contact the repair center.

What does F08 mean on IVEM 6048?

Fault: Output voltage is too high. Cause: Internal failure causing high output voltage. Fix: Restart the unit, if the error persists, contact the repair center.

What does F09 mean on IVEM 6048?

Fault: Output short circuited. Cause: Wiring issue or abnormal load causing a short circuit. Fix: Check if wiring is connected well and remove abnormal load.

What does F10 mean on IVEM 6048?

Fault: Overload time out. Cause: Sustained overload condition. Fix: Reduce the connected load by switching off some equipment.

What does F11 mean on IVEM 6048?

Fault: Battery voltage is too high. Cause: Battery spec/quantity does not meet inverter requirements. Fix: Check if spec and quantity of batteries are meet requirements.

What does F12 mean on IVEM 6048?

Fault: Over current happen at DCDC circuit. Cause: Overcurrent in the DC/DC stage. Fix: Restart the unit, if the error persists, contact the repair center.

What does F13 mean on IVEM 6048?

Fault: PV voltage is too high. Cause: Too many PV modules connected in series. Fix: Reduce the number of PV modules in series.

What does F14 mean on IVEM 6048?

Fault: Short circuited happen at PV port. Cause: Wiring issue causing short at PV port. Fix: Check if wiring is connected well.

What does F16 mean on IVEM 6048?

Fault: Over current happen at PV port. Cause: Overcurrent at the PV input. Fix: Restart the unit, if the error persists, contact the repair center.

What does F17 mean on IVEM 6048?

Fault: Fan is locked. Cause: Fan wiring not connected well or fan failed. Fix: Check if wiring is connected well. Replace the fan.

What does F18 mean on IVEM 6048?

Fault: Over temperature happen at PV circuit. Cause: The temperature of internal PV converter component is over the limitation. Fix: Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.

What does F19 mean on IVEM 6048?

Fault: Over temperature happen at battery circuit. Cause: The temperature of internal battery converter component is over the limitation. Fix: Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.

What does F20 mean on IVEM 6048?

Fault: Over temperature happen at inverter circuit. Cause: The temperature of internal inverter component is over the limitation. Fix: Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.

What does F21 mean on IVEM 6048?

Fault: The inner temperature over. Cause: The inner temperature is over the limitation. Fix: Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.

What does F22 mean on IVEM 6048?

Fault: DCDC current sensor failed. Cause: DC/DC current sensor hardware failure. Fix: Restart the unit, if the error persists, contact the repair center.

What does F23 mean on IVEM 6048?

Fault: No.2 DCDC current sensor failed. Cause: Second DC/DC current sensor hardware failure. Fix: Restart the unit, if the error persists, contact the repair center.

What does F24 mean on IVEM 6048?

Fault: Inverter current sensor failed. Cause: Inverter current sensor hardware failure. Fix: Restart the unit, if the error persists, contact the repair center.

What does F25 mean on IVEM 6048?

Fault: OP current sensor failed. Cause: Output current sensor hardware failure. Fix: Restart the unit, if the error persists, contact the repair center.

What does F26 mean on IVEM 6048?

Fault: Sharing current sensor failed. Cause: Sharing current sensor hardware failure (parallel operation). Fix: Restart the unit, if the error persists, contact the repair center.

What does F29 mean on IVEM 6048?

Fault: DC/DC soft start fail. Cause: Internal failure during DC/DC soft start. Fix: Restart the unit, if the error persists, contact the repair center.

What does F31 mean on IVEM 6048?

Fault: Over temperature happen at convert H circuit. Cause: The temperature of internal convert H component is over the limitation. Fix: Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.

What does F32 mean on IVEM 6048?

Fault: Over temperature happen at LLC TX. Cause: The temperature of internal DC/DC TX is over the limitation. Fix: Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.

What does F33 mean on IVEM 6048?

Fault: Over current happen at LLC circuit. Cause: Overcurrent in LLC resonant circuit. Fix: Restart the unit, if the error persists, contact the repair center.

What does F35 mean on IVEM 6048?

Fault: Overvoltage occurs in BUS. Cause: AC surge or PV surge or internal components failed. Fix: Restart the unit, if the error persists, contact the repair center.

What does F40 mean on IVEM 6048?

Fault: CAN data loss. Cause: Communication cable connection issue between paralleled inverters. Fix: 1. Check if communication cables are connected well and restart the inverter. 2. if the problem remains, please contact your installer.

What does F41 mean on IVEM 6048?

Fault: Host data loss. Cause: Communication cable connection issue between paralleled inverters. Fix: 1. Check if communication cables are connected well and restart the inverter. 2. if the problem remains, please contact your installer.

What does F42 mean on IVEM 6048?

Fault: Synchronization data loss. Cause: Communication cable connection issue between paralleled inverters. Fix: 1. Check if communication cables are connected well and restart the inverter. 2. if the problem remains, please contact your installer.

What does F45 mean on IVEM 6048?

Fault: The output current of each inverter is different. Cause: Sharing cables not connected well between paralleled inverters. Fix: 1. Check if sharing cables are connected well and restart the inverter. 2. if the problem remains, please contact your installer.

What does W01 mean on IVEM 6048?

Warning: Fan is locked. Beep three times every second. Cause: Fan wiring not connected well or fan failure. Fix: Check if the Fan's wiring connected well. Replace the fan.

What does W03 mean on IVEM 6048?

Warning: Low battery. Beep once every second. Cause: The battery voltage is too low. Fix: The battery voltage is too low, it should be charging.

What does W51 mean on IVEM 6048?

Warning: BMS doesn't allow inverter to charge battery. Cause: BMS has prohibited charging. Fix: Inverter will stop charging battery automatically.

What does W52 mean on IVEM 6048?

Warning: BMS doesn't allow inverter to discharge battery. Cause: BMS has prohibited discharging. Fix: Inverter will stop discharging battery automatically.

What does W53 mean on IVEM 6048?

Warning: BMS require inverter to charge battery. Cause: BMS has requested charging. Fix: Inverter will charge battery automatically.

IVEM 6048

Inverter49 codes

also coversIVEM6048

40 Fault 9 Warning

About the Felicity IVEM 6048

The Felicity IVEM 6048 is a Inverter unit covered by a shared firmware family that includes 2 variants. The error codes listed below apply to every variant in this family — IVEM 6048, IVEM6048. 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.

F01Bus voltage is too high.Fault

Description

Fault: Bus voltage is too high.

Cause

AC Surge or internal components failed.

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 36

F02Bus voltage is too low.Fault

Description

Fault: Bus voltage is too low.

Cause

Internal components failed (inferred from similar fault classes).

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 36

F03Bus soft start fail.Fault

Description

Fault: Bus soft start fail.

Cause

Internal components failed.

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 36

F04Inverter soft start fail.Fault

Description

Fault: Inverter soft start fail.

Cause

Internal components failed.

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 36

F05Over current or surge detected by Software.Fault

Description

Fault: Over current or surge detected by Software.

Cause

Software-detected overcurrent or surge condition.

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 36

F06Over current or surge detected by hardware.Fault

Description

Fault: Over current or surge detected by hardware.

Cause

Hardware-detected overcurrent or surge condition.

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 36

F07Output voltage is too low.Fault

Description

Fault: Output voltage is too low.

Cause

Connected load is too high or internal failure.

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 37

F08Output voltage is too high.Fault

Description

Fault: Output voltage is too high.

Cause

Internal failure causing high output voltage.

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 37

F09Output short circuited.Fault

Description

Fault: Output short circuited.

Cause

Wiring issue or abnormal load causing a short circuit.

Recommended fix

Check if wiring is connected well and remove abnormal load.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 37

F10Overload time out.Fault

Description

Fault: Overload time out.

Cause

Sustained overload condition.

Recommended fix

Reduce the connected load by switching off some equipment.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 37

F11Battery voltage is too high.Fault

Description

Fault: Battery voltage is too high.

Cause

Battery spec/quantity does not meet inverter requirements.

Recommended fix

Check if spec and quantity of batteries are meet requirements.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 37

F12Over current happen at DCDC circuit.Fault

Description

Fault: Over current happen at DCDC circuit.

Cause

Overcurrent in the DC/DC stage.

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 37

F13PV voltage is too high.Fault

Description

Fault: PV voltage is too high.

Cause

Too many PV modules connected in series.

Recommended fix

Reduce the number of PV modules in series.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 37

F14Short circuited happen at PV port.Fault

Description

Fault: Short circuited happen at PV port.

Cause

Wiring issue causing short at PV port.

Recommended fix

Check if wiring is connected well.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 37

F15PV power is abnormal.Fault

Description

Fault: PV power is abnormal.

Cause

PV power exceeds normal limits (too many PV modules).

Recommended fix

Reduce the number of PV modules.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 37

F16Over current happen at PV port.Fault

Description

Fault: Over current happen at PV port.

Cause

Overcurrent at the PV input.

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 37

F17Fan is locked.Fault

Description

Fault: Fan is locked.

Cause

Fan wiring not connected well or fan failed.

Recommended fix

Check if wiring is connected well. Replace the fan.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 37

F18Over temperature happen at PV circuit.Fault

Description

Fault: Over temperature happen at PV circuit.

Cause

The temperature of internal PV converter component is over the limitation.

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 37

F19Over temperature happen at battery circuit.Fault

Description

Fault: Over temperature happen at battery circuit.

Cause

The temperature of internal battery converter component is over the limitation.

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 37

F20Over temperature happen at inverter circuit.Fault

Description

Fault: Over temperature happen at inverter circuit.

Cause

The temperature of internal inverter component is over the limitation.

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 37

F21The inner temperature over.Fault

Description

Fault: The inner temperature over.

Cause

The inner temperature is over the limitation.

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 37

F22DCDC current sensor failed.Fault

Description

Fault: DCDC current sensor failed.

Cause

DC/DC current sensor hardware failure.

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 37

F23No.2 DCDC current sensor failed.Fault

Description

Fault: No.2 DCDC current sensor failed.

Cause

Second DC/DC current sensor hardware failure.

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 37

F24Inverter current sensor failed.Fault

Description

Fault: Inverter current sensor failed.

Cause

Inverter current sensor hardware failure.

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 37

F25OP current sensor failed.Fault

Description

Fault: OP current sensor failed.

Cause

Output current sensor hardware failure.

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 37

F26Sharing current sensor failed.Fault

Description

Fault: Sharing current sensor failed.

Cause

Sharing current sensor hardware failure (parallel operation).

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 37

F27The AC input and output wires are inversely connected.Fault

Description

Fault: The AC input and output wires are inversely connected.

Cause

AC input and output wires are reversed.

Recommended fix

1. Please check AC input and output wires are connected correctly. 2. if this error happens during parallel installation, please check wires connection. if they are connected correctly, please funish parallel installation first, and then restart inverters. 3. if the problem remains, please contact your installer.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 38

F28Single unit is installed to parallel system.Fault

Description

Fault: Single unit is installed to parallel system.

Cause

A single unit configuration was installed where parallel was expected.

Recommended fix

1. Please check if single unit is installed to parallel system. 2. if this error happens during parallel installation, please check wires connectiotn. if they are connected correctly, please funish parallel installation first, and then restart inverters. 3. if the problem remains, please contact your installer.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 38

F29DC/DC soft start fail.Fault

Description

Fault: DC/DC soft start fail.

Cause

Internal failure during DC/DC soft start.

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 38

F31Over temperature happen at convert H circuit.Fault

Description

Fault: Over temperature happen at convert H circuit.

Cause

The temperature of internal convert H component is over the limitation.

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 38

F32Over temperature happen at LLC TX.Fault

Description

Fault: Over temperature happen at LLC TX.

Cause

The temperature of internal DC/DC TX is over the limitation.

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 38

F33Over current happen at LLC circuit.Fault

Description

Fault: Over current happen at LLC circuit.

Cause

Overcurrent in LLC resonant circuit.

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 38

F35Overvoltage occurs in BUS.Fault

Description

Fault: Overvoltage occurs in BUS.

Cause

AC surge or PV surge or internal components failed.

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 38

F40CAN data loss.Fault

Description

Fault: CAN data loss.

Cause

Communication cable connection issue between paralleled inverters.

Recommended fix

1. Check if communication cables are connected well and restart the inverter. 2. if the problem remains, please contact your installer.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 38

F41Host data loss.Fault

Description

Fault: Host data loss.

Cause

Communication cable connection issue between paralleled inverters.

Recommended fix

1. Check if communication cables are connected well and restart the inverter. 2. if the problem remains, please contact your installer.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 38

F42Synchronization data loss.Fault

Description

Fault: Synchronization data loss.

Cause

Communication cable connection issue between paralleled inverters.

Recommended fix

1. Check if communication cables are connected well and restart the inverter. 2. if the problem remains, please contact your installer.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 38

F43Current feedback into the inverter is detected.Fault

Description

Fault: Current feedback into the inverter is detected.

Cause

Reverse-connected L/N cables or improper sharing-cable wiring in parallel/three-phase systems.

Recommended fix

1. Restart the inverter. 2. Check if L/N cables are not connected reversely in all inverters. 3. For parallel system in single phase, make sure the sharing cables are connected in all inverters. For supporting three-phase system, make sure the sharing cables are connected in the inverters in the same phase, and disconnected in the inverters in different phases. 4. if the problem remains, please contact your installer.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 38

F44The firmware version of each inverter is not the same.Fault

Description

Fault: The firmware version of each inverter is not the same.

Cause

CPU/firmware versions differ between paralleled inverters.

Recommended fix

1. Update all inverter firmware to the same version. 2. Check the version of each inverter via LCD setting and make sure the CPU versions are same. if not, please contact your installer to provide the firmware to update. 3. After updating, if the problem still remains, please contact your installer.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 38

F45The output current of each inverter is different.Fault

Description

Fault: The output current of each inverter is different.

Cause

Sharing cables not connected well between paralleled inverters.

Recommended fix

1. Check if sharing cables are connected well and restart the inverter. 2. if the problem remains, please contact your installer.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 39

F46AC output mode setting is different.Fault

Description

Fault: AC output mode setting is different.

Cause

Inconsistent AC output mode (program 28) settings across paralleled inverters.

Recommended fix

1. Switch off the inverter and check LCD setting program 28. 2. For parallel system in single phase, make sure no 3P1, 3P2 or 3P3 is set on program 28. For supporting three-phase system, make sure no "PAL" is set on program 28. 3. if the problem remains, please contact your installer.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 39

W01Fan is locked.Warning

Description

Warning: Fan is locked. Beep three times every second.

Cause

Fan wiring not connected well or fan failure.

Recommended fix

Check if the Fan's wiring connected well. Replace the fan.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 36

W02Overload.Warning

Description

Warning: Overload. Beep twice every second.

Cause

Connected load exceeds the inverter capacity.

Recommended fix

Reduce the loads.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 36

W03Low battery.Warning

Description

Warning: Low battery. Beep once every second.

Cause

The battery voltage is too low.

Recommended fix

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

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 36

W50BMS firmware version is not matched.Warning

Description

Warning: BMS firmware version is not matched.

Cause

BMS firmware version mismatch.

Recommended fix

Upgrade the firmware of BMS.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 36

W51BMS doesn't allow inverter to charge battery.Warning

Description

Warning: BMS doesn't allow inverter to charge battery.

Cause

BMS has prohibited charging.

Recommended fix

Inverter will stop charging battery automatically.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 36

W52BMS doesn't allow inverter to discharge battery.Warning

Description

Warning: BMS doesn't allow inverter to discharge battery.

Cause

BMS has prohibited discharging.

Recommended fix

Inverter will stop discharging battery automatically.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 36

W53BMS require inverter to charge battery.Warning

Description

Warning: BMS require inverter to charge battery.

Cause

BMS has requested charging.

Recommended fix

Inverter will charge battery automatically.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 36

W54~65BMS detect something wrongs happened.Warning

Description

Warning: BMS detect something wrongs happened (range covering codes 54 through 65).

Cause

BMS has detected an internal abnormality.

Recommended fix

If the code is keeping for long time, please contact with your installer.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 36

W80BMS communication fault.Warning

Description

Warning: BMS communication fault.

Cause

Communication line between BMS and inverter is not connected well.

Recommended fix

Check if the communication line is connected well.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 36

Step-by-step troubleshooting checklist

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.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.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.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.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 IVEM 6048 error codes

Where can I find the official Felicity IVEM 6048 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 IVEM 6048 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 IVEM 6048?: 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.