PROT-INV-REVERSE-POLFault

Felicity battery error PROT-INV-REVERSE-POL

Reverse Polarity protection

Fault — the battery enters fault protection and stops normal operation until the fault is cleared — how it is shown (LED pattern or display code) depends on the model.

LPBA48100-OL

BatteryFault

What it means

Reverse Polarity protection — Listed under 7.1 Battery System Features as part of the inverter-interface protection set: protects against reverse polarity connection of the inverter cables.

Cause: The inverter cables were connected with positive and negative swapped; reverse-polarity protection blocked the connection to prevent damage to the BMS and cells.

How to fix it

  1. Power down the inverter, wait 5 minutes for capacitors to discharge, then restart.
  2. If the fault recurs immediately or repeatedly, record the exact code and contact your installer or the manufacturer's service line.

Source: felicity-5.1-kwh-user-manual.pdf, p.4

Frequently asked questions

What does error PROT-INV-REVERSE-POL mean on a Felicity battery?
PROT-INV-REVERSE-POL means: Reverse Polarity protection. The inverter cables were connected with positive and negative swapped; reverse-polarity protection blocked the connection to prevent damage to the BMS and cells.
Is error PROT-INV-REVERSE-POL a fault or a warning?
PROT-INV-REVERSE-POL is a fault code: the battery enters protection and stops normal operation until it is cleared.
How do I clear or fix error PROT-INV-REVERSE-POL?
Power down the inverter, wait 5 minutes for capacitors to discharge, then restart. If the fault recurs immediately or repeatedly, record the exact code and contact your installer or the manufacturer's service line.

Related error codes

Other codes on the LPBA48100-OL

All LPBA48100-OL codes

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.