Sweet had that happen once spent ages trying to find the problem.  Then leaning in I hit the flipper and it fires to life.     

     Best advice I can give you to get this game going is to rebuild all the stepper units and score reels.    Check out the 101 section and I've made threads on how to do this if you have never done one.   90% of EM problems come from the steppers and score reels

+1

EMs have a knack of sometimes fixing themselves after a few games. Things start "working" again, but as Daniel correctly stated, you will need to rebuild steppers etc. Have a read of the many EM restores and Marvin's EM Repair guide and you will build up the confidence. If in doubt, there is plenty of help at hand - just ask the question(s) !

Great to see you have added an EM to the collection