Boilers are essential for keeping our homes warm and cosy, especially during the colder months. However, when your boiler starts making unusual noises, it can be concerning. Understanding the reasons behind these noises can help you address the issue promptly and ensure your heating system is functioning correctly.
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Common Boiler Noises and Their Causes
- Kettling Kettling is a common issue where your boiler makes a noise similar to a kettle boiling. This is usually caused by a build-up of limescale or sludge on the heat exchanger, leading to overheating and boiling of water. The restricted flow results in steam bubbles forming and collapsing, producing the characteristic noise. Regular servicing and cleaning can prevent kettling and keep your boiler running smoothly.
- Whistling Whistling sounds often indicate air trapped in the system or a build-up of mineral deposits. Air can enter the system through leaks or during the initial filling process. Bleeding your radiators or having a professional flush the system can usually resolve this issue.
- Banging and Clunking Banging or clunking noises, also known as “water hammer,” can be caused by a number of issues including loose pipes, a faulty pump, or air trapped in the system. It’s important to address this promptly, as it can lead to further damage if left unattended. An experienced engineer can diagnose and fix the underlying problem.
- Humming A humming noise is typically less concerning but can be annoying. It is often caused by the vibration of the heating elements or the pump. Ensuring that your boiler is properly secured and insulated can reduce or eliminate this noise.
Preventative Measures
- Regular Maintenance: Scheduling annual maintenance with a qualified engineer can prevent most noise-related issues. During a service, the engineer will clean and inspect the system, ensuring everything is in good working order.
- Proper Installation: Ensuring your boiler is installed correctly by a professional can prevent many common problems. If you’re experiencing issues with a newly installed boiler, it’s worth having the installation checked.
- Water Treatment: Using water softeners and chemical inhibitors can prevent limescale and sludge build-up, which are common causes of noisy boilers.
When to Call a Professional
While some boiler noises can be resolved with basic maintenance, others may indicate a more serious issue. If your boiler is making loud or persistent noises, or if you notice any other signs of trouble such as leaks or fluctuating pressure, it’s best to call a professional. At Complete Gas Services Ltd, we offer comprehensive boiler services in Keynsham, Saltford, Midsomer Norton and across Bath and Radstock. Please get in touch if your boiler is making strange noises.