Sanyo fully automatic washing machine, safety switch does not disconnect.
Solution: Adjust the distance between the spring sheet and the cover rod with pliers, test the machine, and the fault is eliminated.
Fault phenomenon: When dehydration is completed, the washing machine does not stop after opening the safety switch.
Analysis and maintenance: According to the regulations of the washing machine standard, when the washing machine cover is opened 50mm, the safety switch should be able to cut off the power, and the dehydration bucket can stop rotating within 10 seconds. The reasons for the failure of the safety switch not disconnecting are:
(1) Excessive top pressure deformation between the two blades of the safety switch;
(2) The distance between the safety rod and the water tank is too large;
(3) The relative motion parts inside the safety switch are jammed;
(4) The two contacts of the safety switch are stuck together. Remove the rear cover plate and control box of the washing machine. After careful inspection, it was found that the pre-deformation amount between the two blades of the safety switch was too large, which weakened its disconnection effect, causing the safety switch to fail to disconnect, resulting in the fault of non-stop.
Data source; Beijing Sanyo Washing Machine After-sales Service Phone http://blog.tianya.cn/blogger/blog_main.asp?BlogID=3442560.
Maintenance experience: If there is a gap between the spring contact points of the safety switch and poor contact, it will cause the washing machine to stop when the dehydration bucket vibrates slightly during dehydration.