Also applies to:IVPS2512IVPS2524IVPS3524IVPS5024IVPS5048IVPS7548IVPS-7548IVPS10048+9
What it means
Battery voltage high — The battery voltage is above the allowed maximum.
Cause: The battery voltage is too high; on a 48V system a reading above 60V indicates a battery problem.
How to fix it
- 1Read the battery voltage from the screen and measure the battery voltage with a multimeter.
- 2If both readings are more than 60V, the battery may have a problem and you must stop using it.
Source: IVPS-IVPM User Guide.pdf, p.17 · IVPS3524P1G1-LV IVPS5048P1G1-LV IVPS7548P2G1 IVPS10048P2G1 User Guide - EN.pdf, p.24
Also applies to:IVCM2024 PROIVCM3024 PRO
What it means
Overload protection
Cause: The output was overloaded long enough to trip overload protection: the connected loads exceed what the inverter can supply continuously.
How to fix it
Reduce the loads and Restart the machine.
Source: ICM.pdf, p.13
Also applies to:T-REX-3K6LP1G01T-REX-4KLP1G01T-REX-4K6LP1G01T-REX-5KLP1G01T-REX-6KLP1G01
What it means
Overload time out
Cause: The output ran in overload longer than the permitted grace period, so protection tripped rather than allow continued operation above rating.
How to fix it
Reduce the connected load by switching off some equipment.
Source: T-REX-3_3.6_4_4.6_5_6KLP1G01-hybrid-inverter-user-guide-English.pdf, p.38
Also applies to:IVEM6048
What it means
Fan is locked
Cause: Fan wiring not connected well or fan failed.
How to fix it
- 1Check if wiring is connected well.
- 2Replace the fan.
Source: felicitysolar IVEM 6048 Solar Inverter User Guide.pdf, p.37
Also applies to:IVEM12048-IIIVEM 8K-12K Series II
What it means
Fan is locked
Cause: Fan wiring not connected well or fan failure.
How to fix it
- 1Check if wiring is connected well.
- 2Replace the fan.
Source: IVEM8K-12K-II_compressed.pdf, p.43
Also applies to:IVEM8048
What it means
Fan is locked
Cause: Fan wiring problem or fan failure.
How to fix it
- 1Check if wiring is connected well.
- 2Replace the fan.
Source: FelicitySolar IVEM8048-LV Single Phase Hybrid Inverter User Guide.pdf, p.38
Also applies to:T-REX-10KLP3G01
What it means
Overload time out
Cause: Connected load is too high.
How to fix it
Reduce the connected load by switching off some equipment.
Source: T-REX-10KHP3G01-Inverter-User-Guide.pdf, p.28 · T-REX-10KLP3G01-Inverter-User-Guide.pdf, p.28
What it means
Battery 2 Overvoltage fault — Battery 2 voltage is too high, the battery should be discharged.
Cause: Battery 2 voltage tripped the hardware overvoltage protection, which acts independently of the firmware — the pack is above the permitted range and should be discharged.
How to fix it
- 1Power down the inverter, wait 5 minutes for capacitors to discharge, then restart.
- 2If the fault recurs immediately or repeatedly, record the exact code and contact your installer or the manufacturer's service line.
Source: T-REX-50KHP3G01-user-manual-.pdf, p.46
Energy storage systemFault Also applies to:Apollo-5KLP1G01-M1Apollo-5KLP1G01-M2Apollo-4K6LP1G01-MXApollo-4K6LP1G01-M1Apollo-4K6LP1G01-M2
What it means
Overload time out — Overload condition timed out.
Cause: The connected load exceeded the inverter's overload capacity for longer than the allowed time, so the overload timer expired and the unit shut the output down.
How to fix it
Reduce the connected load by switching off some equipment.
Source: Apollo-5KLP1G01-All-in-one-ESS-User-Guide.pdf, p.43
What it means
Eeprom is error — Fault event: EEPROM (non-volatile memory) error detected on the controller.
Cause: Internal EEPROM corruption or hardware failure preventing the controller from reading or writing its stored configuration.
How to fix it
- 1Restart the unit.
- 2If the error persists, contact the repair center.
Source: LUX-S-1600LG01.pdf, p.22
Also applies to:LUX-Y-48100HCG01LUX-Y-48100HMG01LUX-Y-48100HR13G01LUX-Y-48100HR9G01
What it means
Parallel Fault — Fault in parallel battery configuration.
Cause: A single unit is installed to a parallel system, the number of parallel battery slave controls does not match, or the wiring between paralleled units is incorrect.
How to fix it
- 1Please check if the number of parallel battery slave controls is the same
- 2Please check if a single unit is installed in a parallel system
- 3If this error occurs during parallel installation, please check the wiring. if they are connected correctly, please install them in parallel first and then restart the device
- 4If the problem persists, please contact the installation personnel.
Source: LUX-Y-48100HG01-Lithium-Battery-User-Guide.pdf, p.20
What it means
Parallel Fault
Cause: A single unit is installed to a parallel system, the number of parallel battery slave controls does not match, or the wiring between paralleled units is incorrect.
How to fix it
- 1Power down the inverter, wait 5 minutes for capacitors to discharge, then restart.
- 2If the fault recurs immediately or repeatedly, record the exact code and contact your installer or the manufacturer's service line.
Source: LUX-Y-48100HG01MN User manual 358-S010025-03 0325(V2.0).pdf, p.27
Charge controllerCritical Also applies to:SCCM4524-IIISCCM4548-IIISCCM6048-IIISCCM8048-IIISCCM10048-IIISCCM12048-III
What it means
Eeprom is fault — EEPROM (non-volatile parameter memory) read/write fault.
Cause: Internal EEPROM corruption or hardware failure preventing the controller from reading/writing stored configuration.
How to fix it
- 1Restart the charger
- 2If the problem remains, please contact your installer.
Source: felicitysolar SCCM-III MPPT Solar Charge Controller User Guide.pdf, p.18