Can I clear the F15 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 F15 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.

Critical

F15

Q: What does F15 mean on Apollo-5KLP1G01-MX?

Buckboost current sensor failed. Cause: Buckboost current sensor failed. Recommended fix: Restart the unit, if the error persists, contact the repair center.

Q: What does F15 mean on IVEM 6048?

Fault: PV power is abnormal. Cause: PV power exceeds normal limits (too many PV modules). Recommended fix: Reduce the number of PV modules.

Q: What does F15 mean on IVEM8048-II?

Fault: PV power is abnormal. Cause: PV input power exceeds the inverter's allowed maximum. Recommended fix: Reduce the number of PV modules.

Q: What does F15 mean on IVEM8048-LV?

PV power is abnormal. Cause: Excessive PV power input. Recommended fix: Reduce the number of PV modules.

Q: What does F15 mean on T-REX-10KHP3G01?

Buckboost current sensor failure. Recommended fix: Restart the unit, if the error persists, contact the repair center.

Q: What does F15 mean on T-REX-10KLP3G01?

Buckboost current sensor failed. Recommended fix: Restart the unit, if the error persists, contact the repair center.

Buckboost current sensor failed.

7 Devices that report this code

What does the F15 error code mean?

F15 on a Felicity unit indicates: Buckboost current sensor failed.. It is a critical-severity event that can appear on 7 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 critical-severity code

Critical codes trip the unit offline immediately. They typically indicate hardware failure (short-circuit, IGBT, BMS) or an unsafe operating condition. Do not bypass the fault — note the code and contact authorized service.

What triggers this code

F15 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.

Apollo-5KLP1G01-MXEnergy storage system↗ view on device

F15Buckboost current sensor failed.Critical

Description

Buckboost current sensor failed.

Cause

Buckboost current sensor failed.

Recommended fix

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

Source:Apollo-5KLP1G01-All-in-one-ESS-User-Guide.pdf · page 43

IVEM 6048Inverter↗ view on device

F15PV power is abnormal.Fault

Description

Fault: PV power is abnormal.

Cause

PV power exceeds normal limits (too many PV modules).

Recommended fix

Reduce the number of PV modules.

Source:felicitysolar IVEM 6048 Solar Inverter User Guide.pdf · page 37

IVEM8048-IIInverter↗ view on device

F15PV power is abnormal.Fault

Description

Fault: PV power is abnormal.

Cause

PV input power exceeds the inverter's allowed maximum.

Recommended fix

Reduce the number of PV modules.

Source:IVEM8K-12K-II_compressed.pdf · page 43

IVEM8048-LVInverter↗ view on device

F15PV power is abnormal.Fault

Description

PV power is abnormal.

Cause

Excessive PV power input.

Recommended fix

Reduce the number of PV modules.

Source:FelicitySolar IVEM8048-LV Single Phase Hybrid Inverter User Guide.pdf · page 38

T-REX-10KHP3G01Inverter↗ view on device

F15Buckboost current sensor failed.Fault

Description

Buckboost current sensor failure.

Recommended fix

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

Source:T-REX-10KHP3G01-Inverter-User-Guide.pdf · page 28

T-REX-10KLP3G01Inverter↗ view on device

F15Buckboost current sensor failed.Fault

Description

Buckboost current sensor failed.

Recommended fix

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

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

T-REX-50KHP3G01Inverter↗ view on device

F15Battery 2 software overvoltage fault.Fault

Description

Battery 2 voltage is too high, the battery should be discharged.

Source:T-REX-50KHP3G01-user-manual-.pdf · page 46

Frequently asked about F15

What is the F15 error on Felicity?: F15 on a Felicity unit means: Buckboost current sensor failed.. It can appear on 7 different devices in the Felicity catalog. The cause and recommended fix are listed for each device on this page.
Can I clear the F15 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 F15 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.