I have a fault with the dongle in my boilery thing. One moment it's doing one thing; the next, with no warning or digitised voice announcing that I have 15 seconds to reach safe distance, it does something else!
Is it the divertor valve?
Or the effects of surface tension in the pressure accumulator valve outlet?
If so, can I fix it by renewing the flow switch?
Is it the divertor valve?
Or the effects of surface tension in the pressure accumulator valve outlet?
If so, can I fix it by renewing the flow switch?