Cheers for that advice . Tried a spare battery and exactly the same problem . All connections seem good . If it was a connection , surely it would still turn off while I was holding the on button . Don’t mind buying a new controller but it’s down time . Drive to my local shop , get it fitted . Get to work , that’s a morning gone . Might seem a daft question . But has it got owt to do with the shurflow pump 100psi with that controller ?
Definitely sounds like the controller.
As you say, the pump with a missing or failed pressure switch can't be used without the controller.
Personally, I would take a couple of days off and order another Spring derived controller asap.
The early controllers (Varistream & Spring) were pretty robust. Failures were mainly due to water ingress or connecting the battery up incorrectly (reversed polarity.) We did see a Varistream failure once reported by a poster with a burnt connector at the PC board.
The latest V16 Spring controllers do have built in reversed polarity protection.
My experience is that Daqua.co.uk have been very reliable with their next day deliveries.
Spring controllers have always worked very well with Shurflo pumps, so I wouldn't suspect a compatability problem.