Open Circuit Voltage or Short Circuit Current Mismatch — Potential wiring error

What does Open circuit voltage (V oc) and short circuit current (I sc) differ from specifications mean?

A discrepancy between the measured open circuit voltage (Voc) and short circuit current (Isc) and the module's specifications indicates a possible wiring fault within the PV system.

• Incorrectly made electrical connections.
• Damage to wiring or connectors.
• Loose or improperly secured wiring.

Click steps to track your progress.

1. 1

   Confirm all wiring connections are correctly made according to the system design.

2. 2

   Inspect all cables and connectors for any signs of damage or loose fittings.

3. 3

   Ensure that the correct polarity is maintained throughout the DC wiring.

4. 4

   Refer to the installation manual for proper wiring procedures.

5. 5

   If the issue persists, contact a qualified installer for further investigation.