OK so there is every chance that this has always happened but it's recently just become louder. Maybe the fan is broken or has become loose? Is this possible?
Is replacing the fan an easy job?
No. I just presumed. Thank you for this advice. If I do have a fan that turns on randomly, what would you recommend as a solution please? This never used to happen...
Hi this is my first post here.
We have a gas boiler that serves our central heating and water cistern for hot water. We have a Honeywell dual channel programmer and a Nest Smart Thermostat. Everything has been functioning well for a while but recently we've had this new issue:
When neither...