I need some help to confirm how my system should be wired.
I have a new Ideal Boiler (hot water tank system) and I'm replacing existing controls with a Hive. Also added an underfloor heating zone in a new extension. Three 2-way valves installed (radiators, water, underfloor).
Problem is...
I have a Glow worm energysaver 50e boiler running 14 radiators through microbore tubing. One motorised valve for the hot water which is stored in a standard cylinder - pretty normal set-up which is about 12 years old and has been well maintained.
I have had a sudden increase in boiler noise...