I had a 2 port valve fail, so I set the boiler down to 50°C to avoid scalding. The rads and cylinder were very hot before I reduced it.
Problem is it won't go back - I set it back to 82°C (which it "remembers") but it continues to modulate beautifully, achieving a constant flow temperature of 50 -51°. The hot water gets up to about 50°C, and the rads are all just about too hot to hold comfortably.
I am considering checking if the pcb has a factory default reset facility, and if not swapping the board itself.
Does anyone have any thoughts on this?
Problem is it won't go back - I set it back to 82°C (which it "remembers") but it continues to modulate beautifully, achieving a constant flow temperature of 50 -51°. The hot water gets up to about 50°C, and the rads are all just about too hot to hold comfortably.
I am considering checking if the pcb has a factory default reset facility, and if not swapping the board itself.
Does anyone have any thoughts on this?
