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Balanced

Balanced — Inverter disconnected or limiting output in three-phase system

SMA · Sunny Boy Inverters

What does Balanced mean?

The Sunny Boy inverter has either disconnected from the grid or is limiting its output to 6 kW (adjustable) over a 10-minute average. This occurs in a three-phase system with other Sunny Boys and an SMA Power Balancer, specifically to prevent unbalanced loads when another inverter detects a fault or grid issue.

Common Causes

  • Another Sunny Boy in the system detected a grid fault and disconnected (PhaseGuard).
  • Another Sunny Boy detected a device or grid fault and disconnected (PowerGuard, leading to output reduction by others).
  • Another Sunny Boy detected a device or grid fault (FaultGuard, leading to disconnection by others after 5 min).

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check other Sunny Boy inverters in the three-phase system for any fault messages or disconnections.

  2. 2

    Your installer can check the 'PowerBalancer' operating parameter settings (PhaseGuard, PowerGuard, FaultGuard).

  3. 3

    Consult your installer to ensure the system configuration is correct and address any underlying faults in the multi-inverter setup.

Browse all codes in this manual (70)
Verified technical data. Last updated: April 2026

Related Faults

!PV-Overvoltage!!PV-Overvoltage! !DISCONNECT DC! — Overvoltage at DC input10251Event 10251 — Communication status to network switch or DHCP server changed10252Event 10252 — Communication disrupted
Source: SMA Sunny Boy Inverters
Open Manual (Page 27)Search more codes in this manual