Can I clear the 19 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 19 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.

Fault

19

Q: What does 19 mean on IVCM1012 PRO?

Output short circuit. Recommended fix: Check if wiring is connected well and remove abnormal load.

Q: What does 19 mean on IVGM5KL-P1G1?

Battery open, check battery wiring. Recommended fix: Check battery wiring.

Q: What does 19 mean on T-REX-3KLP1G01?

Output short circuited. Recommended fix: Check if wiring is connected well and remove abnormal load.

Output short circuit.

4 Devices that report this code

What does the 19 error code mean?

19 on a Felicity unit indicates: Output short circuit.. 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

19 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.

IVCM1012 PROInverter↗ view on device

19Output short circuit.Fault

Description

Output short circuit.

Recommended fix

Check if wiring is connected well and remove abnormal load.

Source:ICM.pdf · page 13

IVGM5KL-P1G1Inverter↗ view on device

19Battery Open Circuit Alarm.Fault

Description

Battery open, check battery wiring.

Recommended fix

Check battery wiring.

Source:Felicitysolar IVGM Series Hybrid inverter Instruction Manual.pdf · page 51

LUX-S-1600LG01Battery↗ view on device

19OutputRes is error.Fault

Description

Fault event: output resistance / output stage error detected.

Recommended fix

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

Source:LUX-S-1600LG01.pdf · page 22

T-REX-3KLP1G01Inverter↗ view on device

19Output short circuited.Fault

Description

Output short circuited.

Recommended fix

Check if wiring is connected well and remove abnormal load.

Source:T-REX-3_3.6_4_4.6_5_6KLP1G01-hybrid-inverter-user-guide-English.pdf · page 38

Frequently asked about 19

What is the 19 error on Felicity?: 19 on a Felicity unit means: Output short circuit.. 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 19 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 19 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.