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The boiler is a frequently used appliance in UK homes. A Boiler Guide UK study revealed that London had the highest repair rates, followed closely by the West Midlands. Although significant faults are only detected when it’s too late, you can avoid being taken by surprise by the heating system in your home. That said, here are signs to look out for when your boiler needs repairs. 

It emits a yellow-coloured flame

Ideally, your boiler should have blue flames. Therefore, a yellow flame can be attributed to carbon monoxide leakage in your boiler. This gas is hazardous and has a high fatality rate, making it a case to address immediately. Moreover, its colourless and odourless features cause its leakage to go unnoticed until it has caused significant damage. What’s worse, this harmful gas can be fatal when inhaled in large quantities. 

Fortunately, some boiler manufacturers lace this gas with noticeable odours as a security feature. Therefore, when you perceive a foul smell such as rotten eggs coming from your boiler, please do not ignore it. It is also prudent to call in the heating and boiler experts to assess the situation. If you’re unsure who to call, experts like Wixon Gas and Heating can come to your aid. You can visit their website for further details.

Delayed radiator heating time

Ideally, a well-functioning radiator heats up a few minutes after activation. However, when you notice that it feels cool after several hours, you might be dealing with a faulty radiator. The manufacturer’s instructions will give you a fair idea of how long it takes for your radiator to heat up. Although most brands adhere to regulated standards in the UK, you are better off determining it yourself. According to boiler experts, a non-heating radiator could be due to a physical obstruction in the central heating system. If allowed to persist, your electric bills will bear the brunt of it all.

Irregular noises from the boiler

In ideal situations, your boiler should function silently. However, it might create gurgling or banging sounds when it is faulty. According to plumbing experts, it can happen due to a blockage as heated water tries to force its way through the internal pipes. These sounds happen when the boiler is working or slows down its function when deactivated. Again, you will need experts to attend to it. Never attempt a DIY on your home’s boiler unless you have substantial practical knowledge of how it functions. 


A leaking boiler is not a sign to ignore as it could cause more expensive repairs if not addressed immediately. In worst-case scenarios, your best option would be to change the boiler entirely while you think of resolving the damage to your home. Moreover, there’s likely to be a gas leak when there is a water leak.

In conclusion, stick to regular maintenance routines to get the best of your boiler. Additionally, never doubt the severity of a fault you detect, no matter how harmless it may seem. Faulty boilers is not an issue to deal with when the cold season returns.

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