EG4 Solution: PV voltage is present but not displayed on the monitoring system, and solar power is not being utilized.

With the 6000XP, 12kPV, and 18kPV models, the MPPT inputs are equipped with reverse polarity protection to prevent damage in case of cross-polarizing the PV inputs. If you are experiencing no PV voltage, follow these steps to determine if the reverse polarity protection is active:

Confirm Array Configuration:

Ensure that the array configuration is within the specifications of the inverter.

6000XP



12kPV



18kPV


Verify PV Power:

Confirm that the PV is powered on, and that voltage is present at the input.

Check for Negative Voltage Reading:

Determine if the voltage reading is negative, which would indicate that the inputs are cross-polarized, and the PV is not working due to reverse polarity protection.

Thanks