Ultimate 40ff help

[Hellothur]

My pumps running constantly causing my boiler to fire up every 30mins,
First of all checked my 2 port actuators there fine and in the off position, secondly checked the fuses on the pcb and visually checked resistors and they all seem fine? Noticed that n1 light was on on pcb. Any ideas? Thanks!

 

[lightning]

are you getting 240 volts at s/l if so will be faulty 2 port valve if not faulty pcb , my moneys on the valve

Paul