Ronshuda washing machine, normal water supply, Beijing Ronshuda Washing Machine Repair Center, but no washing. Fault analysis: According to the fault phenomenon, it may be a mechanical system failure or an electrical system malfunction.
Fault inspection: The measured power voltage is 220V AC, which is normal. Inspect the clutch's embrace spring and fork, both of which show no abnormalities. Check the heart-shaped deceleration mechanism of the reducer clutch, which is in good condition. Inspect the embedded parts behind the wave wheel, the fixing screws of the wave wheel, the motor transmission pulley, the clutch pulley, the V-belt, and the fixing screws of the motor, all of which are normal. This indicates that the mechanical system is basically working normally, and the fault lies in the electrical system.
Check the winding of the motor and its wiring, the capacitor and the connector, all of which show no abnormalities. Measure the red, yellow, blue, and yellow feet of the computer board, none of which have voltage. In normal working conditions, there should be an output of 220V AC voltage. Therefore, it is determined that the microcomputer board has a fault. Replace the microcomputer board, start the machine for testing, the washing machine works normally, and the fault is eliminated.
Data source: Beijing Ronshuda Washing Machine Repair Phone http://blog.tianya.cn/blogger/blog_main.asp?BlogID=3447654.