Fault

F13

PV voltage is too high.

4 Devices that report this code

What does the F13 error code mean?

F13 on a Felicity unit indicates: PV voltage is too high.. It is a fault-severity event that can appear on 4 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

F13 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.

IVEM 6048Inverter↗ view on device
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
IVEM8048-IIInverter↗ view on device
F13PV voltage is too high.Fault
Description

Fault: PV voltage is too high.

Cause

PV array open-circuit voltage exceeds the inverter's maximum input voltage.

Recommended fix

Reduce the number of PV modules in series.

Source:IVEM8K-12K-II_compressed.pdf · page 43
IVEM8048-LVInverter↗ view on device
F13PV voltage is too high.Fault
Description

PV voltage is too high.

Cause

Too many PV modules in series.

Recommended fix

Reduce the number of PV modules in series.

Source:FelicitySolar IVEM8048-LV Single Phase Hybrid Inverter User Guide.pdf · page 38
T-REX-10KLP3G01Inverter↗ view on device
F13Buckboost soft start failed.Fault
Description

Buckboost soft start failed.

Recommended fix

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

Source:T-REX-10KLP3G01-Inverter-User-Guide.pdf · page 27

Frequently asked about F13

What is the F13 error on Felicity?
F13 on a Felicity unit means: PV voltage is too high.. It can appear on 4 different devices in the Felicity catalog. The cause and recommended fix are listed for each device on this page.
Can I clear the F13 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 F13 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.