ill start again . right, ive got a glowworm combi boiler which is under the stairs, and for the past few weeks u can hear a hum hum hum hum noise when stood on the stairs.
When u listen to the boiler u can hear it faintly...
got a glowworm combi boiler under the stairs in a cupboard and when the heating is on u can hear a constant hum hum hum hum when standing on the stairs and can hear it faintly from boiler plummer came and had a look other daysaid it were coming from pump but everything working ok heating and...