Haier washing machine, repair theory for the failure of water intake due to excessively high water pressure G0

**Repair Theory for Haier Washing Machines When They Cannot Fill Water Due to Excessive Water Pressure**

If the washing machine fails to fill water and it is observed that the water inlet hose has become noticeably thicker and harder, this indicates that the water pressure has exceeded the pressure range required by the inlet hose and the water inlet valve. Excessively high water pressure is more likely to occur in the lower floors of high-rise buildings. When the water pressure exceeds 0.8 MPa, the reason the water inlet valve cannot open is that the sum of the pressure difference between the top and bottom surfaces of the iron core and the spring force of the small spring is greater than the electromagnetic吸引力 generated when the coil is energized, preventing the iron core from being pulled up.

For areas with excessively high water pressure, a pressure-reducing valve should be installed on the water inlet pipe to eliminate the adverse effects of high water pressure on the washing machine's operation. Alternatively, minor modifications can be made to the structure of the water inlet valve to reduce the impact of high water pressure on its opening function. This can be achieved by slightly compressing the small spring inside the water inlet valve, thereby reducing its initial spring force. Gradual compression of the small spring can be used for testing, but after compression, the spring must still exert some pressure on the iron core to ensure that the water inlet valve automatically closes when powered off.

**Content Source:** http://blog.sina.com.cn/haierxyj114