Input phase abnormal
Warning — the red LED flashes and the inverter keeps running. Deal with it before it escalates.
Severity differs by model — check your model below.
The exact meaning depends on your model:
Also applies to:IVPS5048P1G1-LVIVPS7548P2G1IVPS10048P2G1IVPS3.5~10kVA-USIVPS3-5-10KVA
Input phase abnormal — The AC input phase is abnormal. Shown as flashing warning code 14 on the LCD (distinct from solid fault code 14, output voltage high).
Cause: The AC input phase is abnormal.
Contact the repair center.
Source: ivps3524p1g1-lv-ivps5048p1g1-lv-ivps7548p2g1-ivps10048p2g1-manual.pdf, p.27
AC lightning protection alarm — If the AC lightning protector is abnormal, check whether the lightning protector is abnormal.
Cause: The AC-side surge (lightning) protector is reporting an abnormal state — these modules commonly degrade after absorbing a surge and need to be checked.
Source: t-rex-25-50khp3g01-user-guide-en.pdf, p.45
It depends on the model — 2 devices use code W14. On the IVPS3524P1G1-LV it means: Input phase abnormal. The card for each model on this page gives its exact meaning and fix.
It depends on the model: on some models W14 is a fault (output cut, red LED solid), on others a warning (red LED flashing, unit keeps running). Check the card for your model on this page.
Contact the repair center. The exact steps for each affected model are listed on this page.
Prefer the full written guide? Read the complete Felicity inverter error-code guide
Compiled from official Felicity user manuals. Always consult your device manual and a qualified technician before performing repairs.