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Common Gas Boiler Issues and How to Resolve Them

Having a reliable and efficient gas boiler is essential for a comfortable and warm home. However, like any mechanical system, boilers can encounter problems from time to time. In this blog post, we will discuss some of the common gas boiler issues that homeowners in Chertsey, Chessington, Cobham, and Egham may face and provide guidance on how to resolve them. If you’re experiencing any of these problems, it’s important to seek professional assistance from a gas-safe engineer such as those at Fuller Heating, a trusted company specialising in boiler maintenance and repair.

No Heat or Hot Water

One of the most frustrating issues is when your boiler fails to produce heat or hot water. Check if your thermostat is set correctly and ensure that the boiler’s pressure is at the recommended level. If the problem persists, it could be due to a faulty motorised valve or a malfunctioning thermostat, which will require professional attention.

Strange Noises

Unusual noises coming from your boiler, such as banging, gurgling, or whistling sounds, could indicate underlying issues. These noises are often caused by trapped air or a buildup of limescale within the system. Bleeding the radiators or power flushing the system may be necessary to resolve the problem.

The Pilot Light Keeps Going Out

If your boiler’s pilot light frequently goes out, it may be due to a faulty thermocouple. The thermocouple is a safety device that senses whether the pilot light is on and allows the gas valve to open. A trained engineer can replace the thermocouple and ensure that your boiler operates safely.

Leaks and Dripping

Leaks or dripping water around your boiler should never be ignored. These issues can stem from a faulty pressure valve, a damaged seal, or a crack in the boiler itself. To prevent further damage and potential hazards, contact us immediately to assess and resolve the problem.


Regular boiler maintenance and prompt attention to any issues are vital for keeping your gas boiler in optimal condition. If you reside in Chertsey, Chessington, Cobham, or Egham and are facing boiler problems, don’t hesitate to reach out to Fuller Heating for expert assistance. Their experienced team will ensure that your boiler is functioning safely and efficiently, keeping your home warm and comfortable all year round. Contact Fuller Heating today for reliable boiler servicing and repair.