Solenoid burned


New Member
I have an older (I think pre 71) with a bank of solenoids with the bottom one burned out. The top one had been changed at one time to a W-R 70-111224-7. All I can find on line is 70-111224-5. What is the meaning of the -5 vs -7? Is it important? Even the WR site dosen't show a -7. Can anyone explain how these solenoids work? Anything you can add would be something I don't yet know. tim