Can anyone help, i have a Glow-worm ultimate 70ff boiler, the pump in the airing cupboard runs non stop, the boiler also fires up any time day or night, i think keeping some system up to the boilers own thermostat temp, i have checked Room stat, Tank stat, Both 2 way valves, they all work correctly, i have traced the pump wire back to the boiler and all seems okay, i guess that the fault must be in the boiler itself, maybe a stuck relay/switch or something, any ideas please.
Rob
Rob
