Xinfei bcd229ema circuit board relay does not work, and the compressor is overloaded. When using the refrigerator, excessive items are put in, the thermal load exceeds the cold generated by the system, or the power supply voltage drops, which causes the motor current to rise sharply, the thermal protector acts, the fuse blows, and the motor stops running. If the fault is not eliminated for a long time, the winding of the motor will be burned after long-term operation.