Fault with this boiler can anyone help ?
Got to boiler and controls calling for heat, on display boiler showing in CH mode. But pump runing and doing not else.
Reset boiler and It fired then D2 came up on the display.
Boiler got to about 30 and cut off pump still running.
Reset again and boier runs at 41 and will not ramp up to full speed.
The controls are the small clock on the right of the boiler and a room stat wired into 5/6
Thinking PCB any thoughts ?
Got to boiler and controls calling for heat, on display boiler showing in CH mode. But pump runing and doing not else.
Reset boiler and It fired then D2 came up on the display.
Boiler got to about 30 and cut off pump still running.
Reset again and boier runs at 41 and will not ramp up to full speed.
The controls are the small clock on the right of the boiler and a room stat wired into 5/6
Thinking PCB any thoughts ?
