Fail-safe Apr 20, 2018 3:40:53 GMT Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by WECON Support on Apr 20, 2018 3:40:53 GMT This case uses three instructions “PLS”and “SET” and “RST” ,to stop pump when pressing “stop button” or “no water in water tank”. check the link below: drive.google.com/open?id=1N5T1E1O-kteTtSIEm8A7y8dqJRlz9j1n