SMA Solar Technology AG · A major brand in the UK. 99 codes across 4 product families, each taken from the manufacturer’s manuals. SMA Solar Technology AG technical support ↗
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Type the code on your display or a word from its meaning. Each code opens its own page with what it means, whether it is safe and what you can check.
99 codes
| Code | Meaning | Stops? | Homeowner check? |
|---|---|---|---|
| 101 | The grid voltage or grid impedance at the connection point of the inverter is too high. The inverter has disconnected from the utility grid. | Yes | Yes |
| 102 | The grid voltage or grid impedance at the connection point of the inverter is too high. The inverter has disconnected from the utility grid. | Yes | Yes |
| 103 | The grid voltage or grid impedance at the connection point of the inverter is too high. The inverter has disconnected from the utility grid. | Yes | Yes |
| 104 | The grid voltage or grid impedance at the connection point of the inverter is too high. The inverter has disconnected from the utility grid. | Yes | Yes |
| 105 | The grid voltage or grid impedance at the connection point of the inverter is too high. The inverter has disconnected from the utility grid. | Yes | Yes |
| 202 | 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. | Yes | Yes |
| 203 | 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. | Yes | Yes |
| 205 | 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. | Yes | Yes |
| 206 | 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. | Yes | Yes |
| 301 | The ten-minute average value of the grid voltage is no longer within the permissible range. The grid voltage or grid impedance at the connection point is too high. The inverter disconnects from the utility grid to maintain power quality. | Yes | Yes |
| 302 | The inverter has reduced its power due to a too-high grid voltage to ensure grid stability. | Partly | Yes |
| 401 | The inverter has disconnected from the utility grid. A stand-alone grid or a very large change in the grid frequency was detected. | Yes | Yes |
| 404 | The inverter has disconnected from the utility grid. A stand-alone grid or a very large change in the grid frequency was detected. | Yes | Yes |
| 501 | The grid frequency is not within the permissible range. The inverter has disconnected from the utility grid. | Yes | Yes |
| 502 | The grid frequency is not within the permissible range. The inverter has disconnected from the utility grid. | Yes | Yes |
| 503 | The grid frequency is not within the permissible range. The inverter has disconnected from the utility grid. | Yes | Yes |
| 507 | The inverter has reduced its power due to a too-high grid frequency to ensure grid stability. | Partly | Yes |
| 601 | The inverter has detected an excessively high proportion of direct current in the grid current. | Yes | Yes |
| 701 | The grid frequency is not within the permissible range. The inverter has disconnected from the utility grid. | Yes | Yes |
| 901 | The grounding conductor is not correctly connected. | Yes | Yes |
| 1001 | Incorrect installation of the L / N connection. | Yes | Yes |
| 1101 | A second line conductor is connected to N. | Yes | Yes |
| 1302 | L or N not connected. | Yes | Yes |
| 1404 | Disconnects from the utility grid due to phase conductor failure/overload at terminal AC2. | Partly | Yes |
| 1411 | External current on a line conductor is greater than the permissible maximum current. | Partly | Yes |
| 1501 | The changed country standard or the value of a parameter you have set does not correspond to the local requirements. The inverter cannot connect to the utility grid. | Yes | Yes |
| 3302 | There is not enough power at the DC input of the inverter for stable operation. The inverter cannot connect to the utility grid. | Partly | Yes |
| 3303 | There is not enough power at the DC input of the inverter for stable operation. The inverter cannot connect to the utility grid. | Partly | Yes |
| 3401 | Overvoltage at the DC input. This can destroy the inverter. | Yes | Yes |
| 3402 | Overvoltage at the DC input. This can destroy the inverter. | Yes | Yes |
| 3407 | Overvoltage at the DC input. This can destroy the inverter. This message is signalized additionally by rapid flashing of the LEDs. | Yes | Yes |
| 3410 | Overvoltage at the DC input. This can destroy the inverter. This message is signalized additionally by rapid flashing of the LEDs. | Yes | Yes |
| 3411 | Overvoltage at the DC input. This can destroy the inverter. This message is signalized additionally by rapid flashing of the LEDs. | Yes | Yes |
| 3501 | The inverter has detected a ground fault in the PV module. | Yes | Yes |
| 3523 | During the cyclic insulation test, it is tested whether the electric strength of the battery and PV system is within the safe range. The inverter will be restarted once during an insulation test. | No | Yes |
| 3601 | The leakage current of the inverter and the PV module is too high. There is a ground fault, a residual current or a malfunction. The inverter interrupts feed-in operation immediately after exceeding a threshold. When the fault is eliminated, the inverter automatically reconnects to the utility grid. | Yes | Yes |
| 3701 | The inverter has detected a residual current through brief grounding of the PV module. | Yes | Yes |
| 3801 | Overcurrent at the DC input. The inverter briefly interrupts feed-in operation. | Partly | Yes |
| 3802 | Overcurrent at the DC input. The inverter briefly interrupts feed-in operation. | Partly | Yes |
| 3805 | Overcurrent at the DC input. The inverter briefly interrupts feed-in operation. | Partly | Yes |
| 3809 | Too much current flowing through the DC connection of a Sunny Island. | Partly | Yes |
| 3901 | The feed-in conditions for the utility grid are not yet fulfilled. | Partly | Yes |
| 3902 | The feed-in conditions for the utility grid are not yet fulfilled. | Partly | Yes |
| 3908 | The permissible residual current reaches or exceeds the threshold. | Yes | Yes |
| 4011 | The DC inputs A and B are connected in parallel. | No | Yes |
| 4012 | The DC inputs A and B are not connected in parallel. =====PAGE 96===== 11 Troubleshooting SMA Solar Technology AG Operating manualSBxx-1AV-41-BE-en-2196 | No | Yes |
| 4013 | The displayed input is in reverse polarity or reverse current has been detected in the input. | Partly | Yes |
| 4014 | The displayed input is in reverse polarity or reverse current has been detected in the input. | Partly | Yes |
| 4015 | The displayed input is in reverse polarity or reverse current has been detected in the input. | Partly | Yes |
| 4016 | The displayed input is in reverse polarity or reverse current has been detected in the input. | Partly | Yes |
| 4017 | The displayed input is in reverse polarity or reverse current has been detected in the input. | Partly | Yes |
| 4301 | The inverter has detected an electric arc in the displayed string. If "String N/A" is displayed, the string could not be uniquely assigned. | Yes | Yes |
| 6501 | The inverter has switched off due to excessive temperature. | Yes | Yes |
| 6502 | The inverter has switched off due to excessive temperature. | Yes | Yes |
| 6502-6514 | Temperature of transformer or heat sink too high (overload or ambient temperature). | Not stated | Yes |
| 6509 | The inverter has switched off due to excessive temperature. | Yes | Yes |
| 6511 | An overtemperature has been detected in the choke area. | Yes | Yes |
| 6512 | The inverter will only recommence grid feed-in once the temperature has reached at least −25°C. | Yes | Yes |
| 6602 | The effective value of the grid voltage is above the permitted voltage threshold values for a specified period of time (AF limit). | Yes | Yes |
| 6603 | The cause must be determined by the Service. | Not stated | Yes |
| 6604 | The cause must be determined by the Service. | Not stated | Yes |
| 6606 | The cause must be determined by the Service. | Not stated | Yes |
| 6613 | Power of the loads is too high for the Sunny Island. | Partly | Yes |
| 6614 | Device loaded over its 5-minute rated capacity. | Partly | Yes |
| 6615 | Device loaded over its 30-minute rated capacity. | Partly | Yes |
| 6616 | Device loaded over its rated short-term capacity. | Partly | Yes |
| 6633 | The cause must be determined by the Service. | Not stated | Yes |
| 6801 | Polarity error on the inverter. | Partly | Yes |
| 6802 | Polarity error on the inverter. | Partly | Yes |
| 6901 | Polarity error on the inverter. | Partly | Yes |
| 6902 | Polarity error on the inverter. | Partly | Yes |
| 7001 | A temperature sensor in the inverter is defective and the inverter interrupts the feed-in operation. The cause must be determined by the Service. | Yes | Yes |
| 7002 | A temperature sensor in the inverter is defective and the inverter interrupts the feed-in operation. The cause must be determined by the Service. | Yes | Yes |
| 7014 | Fan is always on. | Not stated | Yes |
| 7015 | A temperature sensor in the inverter is defective and the inverter interrupts the feed-in operation. The cause must be determined by the Service. | Yes | Yes |
| 7701 | The cause must be determined by the Service. | Not stated | Yes |
| 7702 | The cause must be determined by the Service. | Not stated | Yes |
| 7703 | The cause must be determined by the Service. | Not stated | Yes |
| 8003 | The inverter has reduced its power output for more than 10 minutes due to excessive temperature. | Partly | Yes |
| 8104 | The cause must be determined by the Service. | Not stated | Yes |
| 8204 | An error occurred during the self-test of SMA ArcFix. It is not guaranteed that SMA ArcFix will function correctly. The device does not feed in. | Yes | Yes |
| 8205 | The self-test of SMA ArcFix has been completed successfully. | No | Yes |
| 8503 | Polarity error on the inverter. | Partly | Yes |
| 8708 | Communication to the system control absent. Depending on the fallback setting, either the last received values will be retained or the active power will be limited to the set percentage value of the inverter nominal power. | Partly | Yes |
| 8709 | Communication to the system control absent. | Partly | Yes |
| 9002 | The SMA Grid Guard code entered is incorrect. The operating parameters are still protected and cannot be changed. | No | Yes |
| 9003 | Changes to the grid parameters are now blocked. In order to be able to make changes to the grid parameters, from now on you must log in using the SMA Grid Guard code. | No | Yes |
| 9007 | The self-test was terminated. | Yes | Yes |
| 9034 | This message can have the following causes: • The rapid shutdown function was not correctly configured. • The PV module could not be correctly disconnected. Voltage can be applied to the DC inputs of the inverter. • The standby voltage of all PV module switches of a string is > 30 V. • With DC lines laid in parallel, another inverter in the system has caused the Sunspec signal to be overwritten. | Yes | Yes |
| 9037 | The PV module switches did not connect the PV module. | Yes | Yes |
| 9038 | The cause must be determined by the Service. | Yes | Yes |
| 9101 | An error has occurred during calibration. The cause must be determined by the Service. | Not stated | Yes |
| 9107 | The cause must be determined by the Service. | Not stated | Yes |
| 9202 | The cause must be determined by the Service. | Not stated | Yes |
| 9203 | A short circuit occurred at the socket for manual secure power supply operation. | Partly | Yes |
| 10431 | This message is issued at the end of a measurement. | No | Yes |
| 29001 | The entered SMA Grid Guard code is valid. The parameters protected with the SMA Grid Guard code can now be set. 11.3 Checking the PV System for Ground Faults A ground fault may be present if the inverter beeps, the red LED lights up and the event numbers 3501, 3601 or 3701 are being displayed in the Results menu on the inverter user interface. The electrical insulation from the PV system to ground | No | Yes |
| 29252 | SPS mode is not started because the connection to the utility grid is still active. | Partly | Yes |
| 29254 | The battery and PV power are not sufficient to supply the SPS load. | Partly | Yes |