SMA Solar Technology inverters are renowned as possibly one of the best solar inverters available in Australia. Reliability is their strong focus although being European, they do cost a bit more than other brands.

Based in Germany and founded in 1981, SMA Solar Technology is one of the biggest distributors worldwide and is probably the most respected solar power brand available for the Australian market.

Unfortunately, we don’t live in a perfect world and issues can arise for various reasons. Here is a list of common SMA inverter Error Codes with the potential causes and solutions to fix them.

Event numberMessage, cause and corrective measures
101
102
103
Grid fault
The grid voltage or grid impedance at the connection point of the inverter is too high. The inverter has disconnected from the utility grid.
Corrective measures:
Check whether the grid voltage at the connection point of the inverter is permanently in the permissible range.
If the grid voltage is outside the permissible range due to local grid conditions, contact the grid operator. The grid operator must agree with an adjustment of the voltage at the feed-in point or with a change of the monitored operating limits.
If the grid voltage is permanently within the permissible range and this message is still displayed, contact Service.
202
203
205
Grid fault
The utility grid has been disconnected, the AC cable is damaged or the grid voltage at the connection point of the inverter is too low. The inverter has disconnected from the utility grid.
Corrective measures:
Ensure that the circuit breaker is switched on.
Ensure that the AC cable is not damaged and that it is connected correctly.
Ensure that the country data set has been configured correctly.
Check whether the grid voltage at the connection point of the inverter is permanently in the permissible range.
If the grid voltage is outside the permissible range due to local grid conditions, contact the grid operator. The grid operator must agree with an adjustment of the voltage at the feed-in point or with a change of the monitored operating limits.
If the grid voltage is permanently within the permissible range and this message is still displayed, contact the Service.