Fault

05

High PV voltage.

6 Devices that report this code

What does the 05 error code mean?

05 on a Felicity unit indicates: High PV voltage.. It is a fault-severity event that can appear on 6 different devices in the Felicity catalog. The same code may have slightly different recommended fixes depending on the device — the per-device sections below show the exact wording from each device's official manual.

This is a fault-severity code

Fault codes stop normal operation but the unit may attempt to recover. Common causes are out-of-range conditions (voltage, current, temperature) that require checking inputs and outputs before restart.

What triggers this code

05 is triggered when the unit's protection or monitoring logic detects the specific condition described above. The exact trigger depends on the device — see the per-device sections for the official manual entry for each.

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
05PV over current fault.Fault
Description

PV input over current fault.

Recommended fix

1. Restart the system 2~3 times; 2. if the fault still exists, please contact us for help.

Source:Felicitysolar IVGM Series Hybrid inverter Instruction Manual.pdf · page 53
05High Charging Current.Warning
Description

Charging current above safe limit.

Cause

Excessive charging current from inverter/charger.

Recommended fix

Reduce charging current.

Source:LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 21
05High Charging Current.Warning
Description

Charging current exceeded the upper threshold.

Recommended fix

Reduce charging current.

Source:LUX-Y-48100HG01-Lithium-Battery-User-Guide.pdf · page 20
05High Charging Current.Fault
Description

High Charging Current.

Source:LUX-Y-48100HG01MN User manual 358-S010025-03 0325(V2.0).pdf · page 27
05PV is high loss.Critical
Description

Solar (PV) input voltage exceeds the controller's maximum allowable input voltage (140V or 190V depending on model).

Cause

PV array open-circuit voltage exceeds the controller's maximum solar input voltage rating (95V for 30A/45A models with 12V/24V; 145V for 45A/60A/80A 48V models; 165V for 100A/120A models).

Recommended fix

1. Please check the voltage of the solar panel, it should be less than 140V or 190V. 2. if the voltage is ok, please contact your installer.

Source:felicitysolar SCCM-III MPPT Solar Charge Controller User Guide.pdf · page 18

Frequently asked about 05

What is the 05 error on Felicity?
05 on a Felicity unit means: High PV voltage.. It can appear on 6 different devices in the Felicity catalog. The cause and recommended fix are listed for each device on this page.
Can I clear the 05 code myself?
It depends on the severity. Warning-level codes can usually be cleared by following the recommended fix. Fault and critical codes often require checking the source condition first; if the code returns immediately after restart, escalate to authorized service.
Is the 05 fix the same on every device?
The cause is consistent — it's the same protection logic. The exact fix wording can differ per device because each official manual addresses model-specific context (input ranges, parallel-config notes, firmware revisions). Use the per-device section that matches your unit.
Where does this information come from?
Every entry is sourced directly from the official Felicity user manual for the affected device. The "Source" line at the bottom of each device's section shows the manual filename and page number.

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