Combi Boiler

Combi boiler blog posts from Housewarm

No hot water from boiler

No Hot Water From Boiler but Heating Working? Here’s Why

Having no hot water from your boiler and no fault code could be happening for many reasons. Different boilers and setups vary a lot and so do the reasons for not getting hot water. I have been repairing boilers full-time for over a decade and have encountered and fixed many boiler problems. Here I’ll show you the

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Vaillant Boiler leaking water

Why is My Boiler Leaking Water From Underneath? Help Guide

A boiler leaking water can cause your boiler to not fire up, rust, or become dangerous. I have been fitting and fixing boilers full-time for over a decade and have repaired many leaking boilers and radiators leaking water. In this post, I’ll share some of what I have learned over the years from my on-the-job

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How to replace a pressure relief valve

How to Replace a Pressure Relief Valve on a Combi Boiler

A pressure relief valve (PRV) is a safety valve on a central heating system to prevent the pressure from getting too high and becoming dangerous. When the boiler pressure is too high and reaches 3 bar, the PRV will release the water from the system and discharge it outside. I have been repairing boilers full-time

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