- Manufacturer
- SMA
- Models
- Sunny Tripower (STP)
1What the error means
SMA STP inverters
We can resolve the following error codes of SMA inverters.
Below is a list of the SMA Error Codes. You should also consult the user manual of the inverter
| 101 to 103 | Grid fault |
| 202 to 203 | Grid fault |
| 301 | Grid fault |
| 401 to 404 | Grid fault |
| 501 | Grid fault |
| 601 | Grid fault |
| 701 | Frq. not permitted -> Check parameter |
| 1302 | Waiting for grid voltage-> Grid fault |
| 1501 | Grid reconnection fault |
| 3301 to 3303 | Unstable operation |
| 3401 to 3402 | DC overvoltage |
| 3501 | Insulation failure |
| 3601 | High discharge curr. |
| 3701 | Residual current |
| 3801 to 3802 | DC overvoltage |
| 3901 to 3902 | Grid fault |
| 4001-4005 | Defective string |
| 6001 to 6445, 6408 | Self-diagnosis |
| 6313 | Interference device |
| 6429 to 6439 | Interference device |
| 6501 to 6502 | Overtemperature |
| 6603 to 6604 | Overload |
| 6701 to 6702 | Communication interrupted |
| 6801 to 6802 | Self-diagnosis |
| 6901 to 6902 | Self-diagnosis |
| 7001 to 7002 | Fan fault – fan permanently on |
| 7101 | SD card defective |
| 7102 | Parameter file not found or defective. |
| 7105-7106 | Parameter setting failed |
| 7110 | No update file found |
| 7201 to 7202 | Data problem |
| 7303 | Update of the main CPU failed |
| 7305 | Update of the RS485I failed |
| 7307 | Update of the BT failed |
| 7309 | Self-diagnosis |
| 7311 | Language update failed |
| 7314 | Update of the string protection failed |
| 7316 | Update of the Speedwire module failed |
| 7324 | System update |
| 7326 | Network connection failed |
| 7401 | Varistor defective |
| 7508 | Fan fault |
| 7701 7702 7703 | Self-diagnosis |
| 8001 | System derating |
| 8104 | Self-diagnosis |
| 8201-8202 | Self-diagnosis |
| 8301 | Overvoltage |
| 8302 | Voltage fault |
| 8401 | Overtemperature |
| 9002 | Grid fault |
| 9003 | Grid fault |
| 9005 | Grid fault |
| 9007 | Grid fault |
See also: SMA Error Codes — sporadic faults and text messages · all SMA codes with search · SMA inverter repair
2What to do
- Note the code and the inverter model (nameplate on the side of the unit).
- Switch off the grid (AC) breaker and switch it on again after 2–3 minutes.
- If the error returns or keeps recurring, do not keep restarting the unit — contact us for a diagnosis.
3Repair by Aineas
You send the inverter to our lab in Thessaloniki. We diagnose it, inform you of the fault and the cost, and the repair starts only after you approve it. Every inverter is tested under simulated operating conditions before delivery.