**Analysis and Repair:**
After reaching the preset water level, an automatic washing machine will automatically stop filling with water and switch to the washing program, during which the agitator rotates in both forward and reverse directions. If the washing continues after the water stops filling, it indicates a fault in either the capacitor section or the mechanical transmission section. The electrical part should be checked first. Electrical faults may include: a malfunctioning programmer, an open circuit in the motor wires, an open capacitor, or loose connectors. First, check the control board. Using a multimeter, measure the voltage output from the red, yellow, and blue terminals of the control board. A simultaneous 220V voltage output from these three terminals was detected, whereas under normal conditions, these three terminals (red, yellow, and blue) should alternately output 220V voltage. Therefore, it is determined that the control board is faulty.
**Solution:** Replace the control board to eliminate the fault.
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**Source of Information:** Siemens Washing Machine After-sales Service in Beijing - [http://blog.tianya.cn/blogger/blog_main.asp?BlogID=3432932](http://blog.tianya.cn/blogger/blog_main.asp?BlogID=3432932)
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**Fault Phenomenon:** Normal water intake upon startup, but the washing machine does not operate after reaching the preset water level.
**Siemens Washing Machine Repair Experience:** Washer does not wash.
**Repair Experience:** Under normal power supply conditions, if no voltage output is detected from the red, yellow, and blue terminals of the control board, this also indicates a fault in the control board.