When gas boilers break down, the most common sign is a banging noise. When you hear this noise, it is not wise to ignore it. If the banging continues, the cause should be identified, as well as any faulty parts that need to be repaired or replaced. By acting quickly, the costs of repairing a boiler and replacing faulty parts can be kept low.
The banging noise usually occurs due to air in the system. Most traditional boilers, which tend to be open vented, are prone to air getting trapped the system and making these noises. Air can also get trapped in newer boilers caused by malfunctioning air release valves.
The second most common reason for banging noises is due to components such as the gas to water heat exchanger becoming scaled. Heat travels through cracks in the scaled surface causing steam bubbles to form, resulting in loud banging sounds. Other common reasons are the boiler overheating, component failure such as the expansion vessel, automatic air release valve, the high limit thermostat, and most commonly, the pump.
It is recommended to get your boiler serviced at least once a year, though ideally it is recommended to be done twice. Regular services ensure your boiler continues to run smoothly, reducing the likelihood of emergency repairs, which can be time consuming and expensive. If you don’t get your boiler serviced regularly, it is more likely to break down and be costly to fix. But should the worst happen; our fully qualified engineers will carry out a boiler repair or central heating repair quickly and with minimum fuss and hassle. Our engineers are specially trained to repair boilers, so you can relax if you ever do have problems with your boiler.
Content Created by the Vedhas Team (Sunny Sahdev, Vivek Mistry, Dhara Patel)
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