Solution:
1. Check whether the indicator light of the feeder is normal;
2. Check whether the power cord is firmly inserted or damaged;
3. Check whether the power cable interface on the back of the feeder is loose;
4. The APP operates the grain output/press the feeder's grain output button to confirm whether the feeder's grain stirring motor rotates and whether the grain output door rotates;
5. Check whether there is grain stuck on the leaves inside the grain bucket, and whether there is grain stuck/residual in the "grain channel";
6. Restart the device/APP to confirm whether the fault is rectified.