SMA Manual Recommendation
| Error No. | Explanation | Corrective measures |
| 7704 | Contactor error at the DC disconnection point. | • When disconnecting the inverter, check that all motorized circuit-breaker switches are set to the "OFF" position. If they are not, set all of the switches to the "OFF" position (see the inverter installation manual). • Contact the SMA Service Line. |
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