Abstract：Water treatment system is an important part of hemodialysis machine for blood purification, and there are many feedback
signal control links in the whole water production process. The water supply problem and the failure phenomenon of the primary
water treatment system caused by clicking the touch screen were summarized and analyzed in this paper. The cause of the failure was
analyzed in-depth in conjunction with the working principle of the water treatment unit, the composition of the faulty components
was checked, and the failure was solved by installing a stabilized water supply device and replacing the solenoid valve. The above
content prompts the majority of maintenance engineers to fully understand the working principle of the equipment, so as to solve the
fault and ensure the normal operation of the equipment after careful troubleshooting when analyzing the fault phenomenon occurred
during maintenance.
许金阳，郑雅青. 水处理系统故障处理两例[J]. 中国医疗设备, 2020, 35(3): 164-166.
XU Jinyang, ZHENG Yaqing. Two Cases of Maintenance Failure in Water Treatment System. China Medical Devices, 2020, 35(3): 164-166.
