A boiler breakdown is one of the most inconvenient problems any household or business can face. Losing heating and hot water can quickly disrupt daily routines, and repairs are often needed urgently. By understanding the most common causes of boiler faults, you can reduce the chances of an unexpected breakdown and keep your system running smoothly.
What Typically Leads to a Boiler Breakdown?
Lack of Regular Servicing
Skipping annual servicing increases the risk of sudden faults. A routine check allows an engineer to clean key components, test safety devices, and spot early signs of wear. Regular maintenance not only helps extend the lifespan of the boiler but also keeps it running safely and efficiently.
Pressure Problems
Your heating system needs the right water pressure to circulate properly. If the pressure is too low, radiators may not heat up as they should. If it’s too high, the system can become damaged. Engineers can adjust pressure levels and fix leaks or faulty valves that cause these issues.
Frozen Pipes
During cold spells, condensate pipes can freeze and block the system, forcing it to shut down. While this is often a quick fix, persistent freezing may point to a bigger issue, such as poor insulation or incorrect installation.
Faulty Components
Over time, internal parts like pumps, fans, and thermostats can wear out. Unusual noises such as banging or whistling are often early warnings. Some parts can be replaced easily, but frequent failures may suggest the boiler is nearing the end of its life.
Limescale and Sludge Build-Up
Hard water can cause limescale deposits, while rust or debris can build up as sludge inside the system. Both issues reduce performance and increase strain on the boiler. Flushing the system and adding inhibitor treatments can help prevent these problems.
Fuel Supply Issues
For properties with LPG or oil boilers, fuel supply problems such as blockages or empty tanks can stop the system working. Regular servicing checks for these issues and keeps the system running safely.
Poor Installation or Old Age
Boilers that were poorly installed often develop recurring problems. Likewise, systems over 10–15 years old are naturally less reliable and less energy-efficient. At this point, upgrading to a modern model may be a better investment than continuing with frequent repairs.
Need Support with Your Boiler?
At Bog Standard Plumbing, we provide servicing, repairs, and maintenance for all types of boilers, including LPG and oil. Our qualified engineers also support commercial systems, helping both households and businesses keep their heating running smoothly. Call us today or use the contact form to arrange a service.
