Also applies to:IVPS2512IVPS2524IVPS3524IVPS5024IVPS5048IVPS7548IVPS-7548IVPS10048+9
What it means
Overload happens — Overload warning; the code flashes on the LCD and the red LED flashes.
Cause: The connected load is above the inverter's rated output power.
How to fix it
- 1Reduce the connected load.
- 2The inverter forbids overload; the remaining working time depends on the percent of load.
Source: IVPS-IVPM User Guide.pdf, p.18 · IVPS3524P1G1-LV IVPS5048P1G1-LV IVPS7548P2G1 IVPS10048P2G1 User Guide - EN.pdf, p.27
Also applies to:T-REX-3K6LP1G01T-REX-4KLP1G01T-REX-4K6LP1G01T-REX-5KLP1G01T-REX-6KLP1G01
What it means
PV voltage is too high
Cause: The PV string voltage exceeds the inverter's maximum DC input rating — typically a string configured with too many modules in series.
How to fix it
Reduce the number of PV modules in series.
Source: T-REX-3_3.6_4_4.6_5_6KLP1G01-hybrid-inverter-user-guide-English.pdf, p.37
Also applies to:IVEM6048IVEM8048-IIIVEM12048-IIIVEM 8K-12K Series IIIVEM8048-LVIVEM8048
What it means
Bus voltage is too high
Cause: AC Surge or internal components failed.
How to fix it
Restart the unit, if the error persists, contact the repair center.
Source: felicitysolar IVEM 6048 Solar Inverter User Guide.pdf, p.36 · IVEM8K-12K-II_compressed.pdf, p.42 · FelicitySolar IVEM8048-LV Single Phase Hybrid Inverter User Guide.pdf, p.37
What it means
PV voltage is too high — PV input voltage exceeds permitted range.
Cause: Too many PV modules connected in series.
How to fix it
Reduce the number of PV modules in series.
Source: T-REX-10KHP3G01-Inverter-User-Guide.pdf, p.28
What it means
PV voltage is too high
Cause: PV input voltage exceeds inverter limits (too many PV modules in series).
How to fix it
Reduce the number of PV modules in series.
Source: T-REX-10KLP3G01-Inverter-User-Guide.pdf, p.27
What it means
PV1 overvoltage fault — The voltage of the PV1 is too high, check the voltage of the string.
Cause: The open-circuit voltage of the PV1 string is above the inverter's permitted DC input range — typically a string configured with too many modules in series.
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.45
Energy storage systemFault Also applies to:Apollo-5KLP1G01-M1Apollo-5KLP1G01-M2Apollo-4K6LP1G01-MXApollo-4K6LP1G01-M1Apollo-4K6LP1G01-M2
What it means
PV voltage is too high — PV input voltage exceeds the allowed maximum.
Cause: PV voltage is too high.
How to fix it
Reduce the number of PV modules in series.
Source: Apollo-5KLP1G01-All-in-one-ESS-User-Guide.pdf, p.42
Also applies to:LUX-X-96050HMG01LUX-X-96050HCG01
What it means
High Battery Voltage — Battery pack voltage exceeds the upper threshold.
Cause: Battery pack overall voltage too high (overcharge condition).
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-X-96050HG01-Lithium-Battery-User-Guide.pdf, p.21
Also applies to:LUX-Y-48100HCG01LUX-Y-48100HMG01LUX-Y-48100HR13G01LUX-Y-48100HR9G01
What it means
High Battery Voltage — Battery pack voltage exceeded the upper threshold.
Cause: Battery pack overall voltage too high — an overcharge condition.
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-48100HG01-Lithium-Battery-User-Guide.pdf, p.20
What it means
High Battery Voltage
Cause: Battery pack overall voltage too high — an overcharge condition.
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
Over charge current — Charging current exceeds the controller's safe operating limit.
Cause: Charging current has exceeded the maximum safe threshold of the charge controller, possibly due to a fault in the charging circuit or excessive PV input.
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
What it means
Battery voltage is too high — Fault event: battery pack voltage exceeded the upper threshold. Inverter cuts off output and the fault LED is solid on; fault code, icon and ERROR are shown on LCD.
Cause: Battery pack voltage exceeded the upper protection threshold — an overcharge condition.
How to fix it
- 1Restart the unit.
- 2If the error persists, contact the repair center.
Source: LUX-S-1600LG01.pdf, p.22