IVEM8048-II
Inverter56 codesF01Bus voltage is too high.Fault
Fault: Bus voltage is too high. Inverter cuts off output, fault LED solid on, ERROR icon shown on LCD.
AC Surge or internal components failed.
Restart the unit, if the error persists, contact the repair center.
IVEM8K-12K-II_compressed.pdf · page 42F02Bus voltage is too low.Fault
Fault: Bus voltage is too low.
Internal bus voltage abnormally low.
Restart the unit, if the error persists, contact the repair center.
IVEM8K-12K-II_compressed.pdf · page 43F03Bus soft start fail.Fault
Fault: Bus soft start fail.
Internal components failed.
Restart the unit, if the error persists, contact the repair center.
IVEM8K-12K-II_compressed.pdf · page 43F04Inverter soft start fail.Fault
Fault: Inverter soft start fail.
Internal components failed.
Restart the unit, if the error persists, contact the repair center.
IVEM8K-12K-II_compressed.pdf · page 43F05Over current or surge detected by Software.Fault
Fault: Over current or surge detected by Software.
Software-detected over current or surge condition.
Restart the unit, if the error persists, contact the repair center.
IVEM8K-12K-II_compressed.pdf · page 43F06Over current or surge detected by hardware.Fault
Fault: Over current or surge detected by hardware.
Hardware-detected over current or surge condition.
Restart the unit, if the error persists, contact the repair center.
IVEM8K-12K-II_compressed.pdf · page 43F07Output voltage is too low.Fault
Fault: Output voltage is too low.
Output voltage below acceptable range, possibly due to overload.
Reduce the connected load. Restart the unit, if the error persists, contact the repair center.
IVEM8K-12K-II_compressed.pdf · page 43F08Output voltage is too high.Fault
Fault: Output voltage is too high.
Output voltage exceeds acceptable range.
Restart the unit, if the error persists, contact the repair center.
IVEM8K-12K-II_compressed.pdf · page 43F09Output short circuited.Fault
Fault: Output short circuited.
Short circuit on AC output wiring or connected load.
Check if wiring is connected well and remove abnormal load.
IVEM8K-12K-II_compressed.pdf · page 43F10Overload time out.Fault
Fault: Overload time out.
Connected load has exceeded the inverter's overload capacity for too long.
Reduce the connected load by switching off some equipment.
IVEM8K-12K-II_compressed.pdf · page 43F11Battery voltage is too high.Fault
Fault: Battery voltage is too high.
Battery voltage exceeds the inverter's allowed maximum.
Check if spec and quantity of batteries are meet requirements.
IVEM8K-12K-II_compressed.pdf · page 43F12Over current happen at DC/DC circuit.Fault
Fault: Over current happen at DC/DC circuit.
Over current detected in the DC/DC converter circuit.
Restart the unit, if the error persists, contact the repair center.
IVEM8K-12K-II_compressed.pdf · page 43F13PV voltage is too high.Fault
Fault: PV voltage is too high.
PV array open-circuit voltage exceeds the inverter's maximum input voltage.
Reduce the number of PV modules in series.
IVEM8K-12K-II_compressed.pdf · page 43F14Short circuited happen at PV port.Fault
Fault: Short circuited happen at PV port.
Short circuit detected at the PV input port or wiring.
Check if wiring is connected well.
IVEM8K-12K-II_compressed.pdf · page 43F15PV power is abnormal.Fault
Fault: PV power is abnormal.
PV input power exceeds the inverter's allowed maximum.
Reduce the number of PV modules.
IVEM8K-12K-II_compressed.pdf · page 43F16Over current happen at PV port.Fault
Fault: Over current happen at PV port.
Over current detected at the PV input port.
Restart the unit, if the error persists, contact the repair center.
IVEM8K-12K-II_compressed.pdf · page 43F17Fan is locked.Fault
Fault: Fan is locked.
Fan wiring not connected well or fan failure.
Check if wiring is connected well. Replace the fan.
IVEM8K-12K-II_compressed.pdf · page 43F18Over temperature happen at PV circuit.Fault
Fault: Over temperature happen at PV circuit.
The temperature of internal PV component is over the limitation.
Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.
IVEM8K-12K-II_compressed.pdf · page 43F19Over temperature happen at Convert L circuit.Fault
Fault: Over temperature happen at Convert L circuit.
The temperature of Convert L battery converter component is over the limitation.
Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.
IVEM8K-12K-II_compressed.pdf · page 43F20Over temperature happen at INV circuit.Fault
Fault: Over temperature happen at INV circuit.
The temperature of internal INV component is over the limitation.
Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.
IVEM8K-12K-II_compressed.pdf · page 43F21The inner temperature over.Fault
Fault: The inner temperature over.
The inner temperature is over the limitation.
Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.
IVEM8K-12K-II_compressed.pdf · page 44F22DCDC current sensor failed.Fault
Fault: DCDC current sensor failed.
DCDC current sensor failure.
Restart the unit, if the error persists, contact the repair center.
IVEM8K-12K-II_compressed.pdf · page 44F23No.2 DCDC current sensor failed.Fault
Fault: No.2 DCDC current sensor failed.
Second DCDC current sensor failure.
Restart the unit, if the error persists, contact the repair center.
IVEM8K-12K-II_compressed.pdf · page 44F24Inverter current sensor failed.Fault
Fault: Inverter current sensor failed.
Inverter current sensor failure.
Restart the unit, if the error persists, contact the repair center.
IVEM8K-12K-II_compressed.pdf · page 44F25OP current sensor failed.Fault
Fault: OP current sensor failed.
Output current sensor failure.
Restart the unit, if the error persists, contact the repair center.
IVEM8K-12K-II_compressed.pdf · page 44F26Sharing current sensor failed.Fault
Fault: Sharing current sensor failed.
Current-sharing sensor failure (parallel system).
Restart the unit, if the error persists, contact the repair center.
IVEM8K-12K-II_compressed.pdf · page 44F27The AC input and output wires are inversely connected.Fault
Fault: The AC input and output wires are inversely connected.
AC input and output wires connected reversely.
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.
IVEM8K-12K-II_compressed.pdf · page 44F28Single unit is installed to parallel system.Fault
Fault: Single unit is installed to parallel system.
A single unit is detected as installed in a parallel system.
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.
IVEM8K-12K-II_compressed.pdf · page 44F29DC/DC soft start fail.Fault
Fault: DC/DC soft start fail.
DC/DC converter soft start failure.
Restart the unit, if the error persists, contact the repair center.
IVEM8K-12K-II_compressed.pdf · page 44F31Over temperature happen at convert H circuit.Fault
Fault: Over temperature happen at convert H circuit.
The temperature of internal convert H component is over the limitation.
Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.
IVEM8K-12K-II_compressed.pdf · page 44F32Over temperature happen at LLC TX.Fault
Fault: Over temperature happen at LLC TX.
The temperature of internal DC/DC TX is over the limitation.
Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.
IVEM8K-12K-II_compressed.pdf · page 44F33Over current happen at LLC circuit.Fault
Fault: Over current happen at LLC circuit.
Over current detected in the LLC circuit.
Restart the unit, if the error persists, contact the repair center.
IVEM8K-12K-II_compressed.pdf · page 44F34DC/DC hardware overflows.Fault
Fault: DC/DC hardware overflows.
DC/DC converter hardware overflow.
Restart the unit, if the eror happens again, contact the repair center.
IVEM8K-12K-II_compressed.pdf · page 44F35Overvoltage occurs in BUS.Fault
Fault: Overvoltage occurs in BUS.
AC surge or PV surge or internal components failed.
Restart the unit, if the error persists, contact the repair center.
IVEM8K-12K-II_compressed.pdf · page 44F40CAN data loss.Fault
Fault: CAN data loss.
CAN communication data loss between parallel inverters.
1. Check if communication cables are connected well and restart the inverter. 2. if the problem remains, please contact your installer.
IVEM8K-12K-II_compressed.pdf · page 44F41Host data loss.Fault
Fault: Host data loss.
Host data loss in parallel communication.
1. Check if communication cables are connected well and restart the inverter. 2. if the problem remains, please contact your installer.
IVEM8K-12K-II_compressed.pdf · page 44F42Synchronization data loss.Fault
Fault: Synchronization data loss.
Synchronization data loss in parallel communication.
1. Check if communication cables are connected well and restart the inverter. 2. if the problem remains, please contact your installer.
IVEM8K-12K-II_compressed.pdf · page 44F43Current feedback into the inverter is detected.Fault
Fault: Current feedback into the inverter is detected.
Reverse current feedback detected at the inverter.
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.
IVEM8K-12K-II_compressed.pdf · page 45F44The firmware version of each inverter is not the same.Fault
Fault: The firmware version of each inverter is not the same.
Firmware versions on parallel inverters do not match.
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.
IVEM8K-12K-II_compressed.pdf · page 45F45The output current of each inverter is different.Fault
Fault: The output current of each inverter is different.
Output current imbalance between parallel inverters.
1. Check if sharing cables are connected well and restart the inverter. 2. if the problem remains, please contact your installer.
IVEM8K-12K-II_compressed.pdf · page 45F46AC output mode setting is different.Fault
Fault: AC output mode setting is different.
AC output mode setting (LCD program 28) does not match across parallel units.
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.
IVEM8K-12K-II_compressed.pdf · page 45F47Generator current sensor failed.Fault
Fault: Generator current sensor failed.
Generator current sensor failure.
Restart the unit, if the error persists, contact the repair center.
IVEM8K-12K-II_compressed.pdf · page 45W01Fan is locked.Warning
Warning: Fan is locked. Beep three times every second.
Fan wiring not connected well or fan failure.
Check if the Fans wiring connected well. Replace the fan.
IVEM8K-12K-II_compressed.pdf · page 42W02Overload.Warning
Warning: Overload. Beep twice every second.
Connected load exceeds the inverter capacity.
Reduce the loads.
IVEM8K-12K-II_compressed.pdf · page 42W03Low battery.Warning
Warning: Low battery. Beep once every second.
Battery voltage is too low.
The battery voltage is too low, it should be charging.
IVEM8K-12K-II_compressed.pdf · page 42W04Grid anomaly.Warning
Warning: Grid anomaly. Grid icon blinking.
Grid input is over voltage or over frequency.
Check whether the input is overvoltage or overfrequency.
IVEM8K-12K-II_compressed.pdf · page 42W05Three-phase input missing phase.Warning
Warning: Three-phase input missing phase. Fault LED flashing.
Three-phase mains input is not normal (missing phase).
Check whether the three-phase mains input is normal.
IVEM8K-12K-II_compressed.pdf · page 42W06The three-phase parallel is abnormal.Warning
Warning: The three-phase parallel is abnormal. Fault LED flashing.
Three-phase parallel communication is abnormal.
Verify that the three-phase communication is normal.
IVEM8K-12K-II_compressed.pdf · page 42W07Generator anomaly.Warning
Warning: Generator anomaly. Generator icon blinking.
Generator input is over voltage or over frequency.
Check whether the input is overvoltage or overfrequency.
IVEM8K-12K-II_compressed.pdf · page 42W08Three-phase parallel generator input phase deficiency.Warning
Warning: Three-phase parallel generator input phase deficiency. Fault LED flashing.
Three-phase mains input is not normal (missing phase) on generator input.
Check whether the three-phase mains input is normal.
IVEM8K-12K-II_compressed.pdf · page 42W50BMS firmware version is not matched.Warning
Warning: BMS firmware version is not matched.
BMS firmware version mismatch.
Upgrade the firmware of BMS.
IVEM8K-12K-II_compressed.pdf · page 42W51BMS doesn't allow inverter to charge battery.Warning
Warning: BMS doesn't allow inverter to charge battery. Inverter will stop charging battery automatically.
BMS has prohibited charging the battery.
Inverter will stop charging battery automatically.
IVEM8K-12K-II_compressed.pdf · page 42W52BMS doesn't allow inverter to discharge battery.Warning
Warning: BMS doesn't allow inverter to discharge battery. Inverter will stop discharging battery automatically.
BMS has prohibited discharging the battery.
Inverter will stop discharging battery automatically.
IVEM8K-12K-II_compressed.pdf · page 42W53BMS require inverter to charge battery.Warning
Warning: BMS require inverter to charge battery. Inverter will charge battery automatically.
BMS is requesting the inverter to charge the battery.
Inverter will charge battery automatically.
IVEM8K-12K-II_compressed.pdf · page 42W54-W65BMS detect something wrongs happened.Warning
Warning: BMS detect something wrongs happened (range covers BMS internal alarm codes 54 through 65).
BMS has detected an internal fault or abnormal condition.
If the code is keeping for long time, please contact with your installer.
IVEM8K-12K-II_compressed.pdf · page 42W80The BMS communication is abnormal.Warning
Warning: The BMS communication is abnormal. Beep once every second.
BMS communication cable is not properly connected or communication failure.
Check whether the BMS communication cable is connected.
IVEM8K-12K-II_compressed.pdf · page 42Compiled from official FelicityESS user manuals. Always consult your device manual and a qualified technician before performing repairs.