My big old Broomwade has packed up. There's power to the Danfoss switch box and the pressure switch is on Auto, but no sign of life. Any ideas what to investigate?
It was working perfectly last time I needed it (months ago)

If the motor doesn't run it could be the start capacitor. Whenever I've had one go it's been easy to find as it's blown a hole in the side of it.

Turned out to be the switch not latching. I guess it must have been a dirty contact through lying unused for so long. Annoying that I had to disconnect the whole thing, jury rig an alternative set of wiring and it worked straight away.