Switch wire had come off. I resoldered it.

It was the slightly sticky S relay again. I put a very small amount of silicone grease where the two blades rub and that seemed to help.

Closed problem report

Replaced the “balls played” light in the trough and changed a burnt bulb on the playfield

Re-opened problem report

It appears that the rod/plunger that rings the bell is missing.

Seems ok now