It would suggest a slightly dirty contact in the "in game" path...

One other thing you can try... adjust the amount of throw the reset coil has, ie loosen the 4 mounting screws and slightly increase the range of the reset arm. Use a sharpie on the screw areas to mark the original position should you mess it up.

Ken

Check that the "E" relay ( 5000 point and reset target bank relay) is activating, there is a make/break switch on the "E" relay which completes the circuit to the target bank reset coils during a game.

Regards, Richard

If the drop targets don't reset during game play, Inspect and diagnose this circuit with Alligator clip jumper wires
http://www.planetimming.com/Pinball/troubleshooting/EM%20Troubleshooting.pdf
http://www.pinrepair.com/em/index3.htm#features

Be careful because this circuit runs on 120 volts
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Since it’s a sporadic problem, I would take a closer look at each target switch that closes when the target drops. You might have one barely making. Make sure each set of contacts “wipe” on target drop.

Check the target bank sequence switch, also check motor switch 1C, motor switch 2B, the N/C switch on the reset completed relay "A", and the N/C switch on the start relay "S".

This wouldn't have anything to do with the reset of the target bank.
There is a single switch on the target bank which closes when all the targets are down. This initiates the reset of the bank during gameplay, but not at startup. Clean and adjust this switch. It's likely the cause of your problem.

There are two things that should look at.
1st-The fuse for the reset bank take it out then ckeck it with a dmm.
2nd-The series bar they do often break.
Raff

The fuse is not the problem if the target bank resets at the start of the game.