Bosch washer 52, more water intake than displayed, troubleshooting Z4

by ojhz32bn on 2011-10-22 15:50:37

**Fault Analysis:** This machine is a fully automatic washing machine with fuzzy control. The cause of the fault is poor operation of the water inlet system components or control components.

**Fault Inspection:** If the issue is simply excessive water intake, adjusting the high-speed screw on the water level sensor to an appropriate position will suffice. If the water continues to flow in without stopping, after ruling out a faulty water inlet valve, the resistance value of the inductive coil inside the water level sensor should be measured. The normal value is around 40Ω. Then check whether the built-in spring inside the sensor has disengaged. Also, observe if there are any leaks in the rubber diaphragm and air guide tube. The inspection result shows that the inductive coil inside the water level sensor has an open circuit, causing the water level control to fail, leading to the aforementioned fault. After replacing the water level sensor, the machine was tested and operated normally. Fault resolved.

**Data Source:** Beijing Bosch Washing Machine After-sales Service Phone Number: [http://blog.tianya.cn/blogger/blog_main.asp?BlogID=3446026](http://blog.tianya.cn/blogger/blog_main.asp?BlogID=3446026).

**Bosch Washing Machine:** Excessive water intake compared to the displayed water level, or continuous water inflow.