SMA Solar Inverter Error Codes

 

SMA Solar Technology, a German-based company founded in 1981, is a leading global distributor of solar power solutions. Their inverters are highly regarded for reliability, making them popular in the Australian market. This guide will explore the most common error codes of SMA inverters, their causes, and recommended corrective measures.

Error Code 101, 102, 103 – Grid Fault

Message: The grid voltage or impedance is too high, leading to disconnection from the utility grid.

Cause: Check grid voltage within the permissible range. If outside range, contact the grid operator for adjustments.

Correction: Ensure proper grid conditions. If a problem persists, contact SMA Service.

Error Code 202, 203, 205 – Grid Fault

Message: Grid disconnection due to utility grid issues, damaged AC cable, or low grid voltage.

Cause: Check circuit breaker, AC cable, and country data settings. Ensure grid voltage is within limits.

Correction: Address issues with connections, settings, or contact grid operator. Persistent issues require SMA Service.

Error Code 301 – Grid Fault

Message: Inverter disconnects due to the ten-minute average grid voltage exceeding limits.

Cause: Check and adjust the grid voltage at the inverter connection point.

Correction: Address grid voltage issues with the grid operator. If a problem persists, contact SMA Service.

Error Code 302 – Active Power Limit AC Voltage

Message: Inverter limits power due to high grid voltage for grid stability.

Cause: Check grid voltage fluctuations and seek grid operator approval for inverter parameter changes.

Correction: Coordinate changes with the grid operator and SMA Service.

Read More: SMA Solar Inverter Error Codes

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