Solenoid stays open and releases two balls, or Solenoid will no open or will remain open.

  • Solenoid cam is too tight

Locate cam on the side of the solenoid and release some tension by lessening pivot bolt pressure( older unit). 

Lubricate cam pivot shaft and washer (Newer design) with bearing grease or white lithium grease and reinstall washer and lock nut.

Attached is PDF instructions for older design, newer design is the same procedure but instead of a bolt and nut design it is a shaft and nut design.