Keston Combi Boiler Sludge Buildup

Hello,

My Keston combi boiler is making some strange noises. The pump is also struggling hard with the backpressure & is overheating constantly. Apart from this, the water flow on my Keston combi boiler is boiling quite hot but on returns, I am getting too much cold water. Is it something serious? Should I replace the boiler because it is five years old?

Thanks for the suggestions

Michele

Hi Michele

I guess there is sludge buildup in the central heating system. Sludge is just a dirty water. Different particles of the dirt/dust, which are present in the water, combine with iron oxide. As a result, this corrosion comes from the pipes, soldered joints, and radiators. In older boilers, this problem is very common. When this gooey liquid passes though the boiler’s central heating system, it deposits few of these particles. I would suggest you fit the scale reducers & magnetic sludge filter in your boiler to resolve this issue