Fault

14

PV1 voltage is too high.

5 Devices that report this code

What does the 14 error code mean?

14 on a Felicity unit indicates: PV1 voltage is too high.. It is a fault-severity event that can appear on 5 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

14 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.

LUX-S-1600LG01Battery↗ view on device
14PV1 voltage is too high.Fault
Description

Fault event: PV input 1 voltage too high. Maximum allowed PV input voltage is 60Vdc; max PV voltage rating is 95V.

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:LUX-S-1600LG01.pdf · page 22
LUX-X-96050HG01Battery↗ view on device
14Low Output Impedance.Critical
Description

Output impedance is too low (possible short-circuit or bus fault detected).

Cause

Suspected short-circuit on output bus or precharge fault.

Recommended fix

Restart, if the fault still exists, contact our engineer.

Source:LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 21
LUX-Y-48100HG01Battery↗ view on device
14Low Output Impedance.Fault
Description

Output impedance below the expected threshold.

Recommended fix

Restart, if the fault still exists, contact our engineer.

Source:LUX-Y-48100HG01-Lithium-Battery-User-Guide.pdf · page 20
LUX-Y-48100HG01MNBattery↗ view on device
14Low Output Impedance.Fault
Description

Low Output Impedance.

Source:LUX-Y-48100HG01MN User manual 358-S010025-03 0325(V2.0).pdf · page 27
T-REX-3KLP1G01Inverter↗ view on device
14BuckBoost is out of balance.Fault
Description

BuckBoost is out of balance.

Recommended fix

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

Source:T-REX-3_3.6_4_4.6_5_6KLP1G01-hybrid-inverter-user-guide-English.pdf · page 37

Frequently asked about 14

What is the 14 error on Felicity?
14 on a Felicity unit means: PV1 voltage is too high.. It can appear on 5 different devices in the Felicity catalog. The cause and recommended fix are listed for each device on this page.
Can I clear the 14 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 14 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.