SPH 3-6K Hybrid Inverter troubleshooting
SPH 3-6K Hybrid Inverter troubleshooting Attention, please. For SPH 3-6K Standard inverter ( Not UP model ) ONLY can modify safety type via dip swith like below. Error code 1. Error 411 Internal communication failed Triggering condition: 1. Abnormal communication between M3 and DSP chip , last for 900 ms 2. Abnormal communication between M3 …