Now as Chris would say, what exactly have you fitted when you changed a "switch"?
I would interpret that is the little switch at about £10 but Chris would interpret this as the hydraulic unit at about £45.
What you need to do is open the front, swing down the pcb unit and view the operating pin from the hydraulic unit throught the little holes when you turn the HW tap off.
The pin should retract sharply and leave a gap of about 1 mm clear of the switch.
Tony Glazier
I would interpret that is the little switch at about £10 but Chris would interpret this as the hydraulic unit at about £45.
What you need to do is open the front, swing down the pcb unit and view the operating pin from the hydraulic unit throught the little holes when you turn the HW tap off.
The pin should retract sharply and leave a gap of about 1 mm clear of the switch.
Tony Glazier