In one of our previous articles, we’ve already talked about what you can do to prepare for boiler failure and why it’s necessary to know about reliable boiler rentals in London. Yet, there are even more ways to troubleshoot and deal with central heating and boiler issues. 

We understand that not everyone is knowledgeable about these things. This is why we thought it would be useful to put together a list of common central heating and boiler problems along with their solutions. Hopefully, this proves to be useful when it comes to helping you deal with any complications that may come up:

Lack of Heating

One of the most common problems that plague homeowners is the lack of heating from boilers. This can manifest in different ways, with some boilers even failing to produce any amount of hot water. The main culprit for this issue is usually a broken diverter valve, which is responsible for diverting water to your radiator or hot water outlets. 

So, how do you go about fixing this? Well, you can try to replace the diverter valve yourself. But in some cases, you will need a new boiler altogether. To know the best course of action, it might be worth it to call in an expert to examine your boiler before you can make a well-informed decision.

Water Leakage

Water leaks are quite troublesome because they are usually unavoidable and will eventually occur due to the sheer amount of wear and tear on your boilers. The first thing that you’ll want to examine is the pressure valve of your boiler, as it’s usually the culprit for leaks.

If the pressure valve is broken, you can try to attempt to fix the problem. All you have to do is to tighten the bolts and pack gland nuts on the boiler. Now, while this may seem simple, it’s something that you should only attempt if you are knowledgeable and experienced in doing these types of repairs. Otherwise, you’re better off calling in a certified engineer to help you address the issue so that you won’t make costly mistakes.

Noisy Boilers

Boilers, especially ones that are rather old, tend to develop disruptive gurgling noises. This is particularly noticeable when the boiler is just starting up, as you may even hear a sound that can be likened to a small explosion. While this may seem a little daunting, this is a common problem that can easily be addressed.

Keep in mind that the noise is usually caused by trapped gas. What you need to do to fix it is to find a way to release the gas from the central heating pump. In this case, you’ll simply have to remove the airlock and flush out all the trapped gas. If this still doesn’t do the trick, then it may be worth looking into consulting with a professional as the noise may indicate a more serious issue with your boilers that you shouldn’t attempt to fix yourself.


While it’s important to know how to deal with common boiler and central heating problems, the last thing you want to do is cause even bigger problems for yourself. This is why you should also know when it’s time to call in the professionals and make use of temporary boilers as they work on addressing your boiler and heating issues.

Sometimes, central heating and boiler problems are just simply unavoidable. This is why you’ll want to have a backup plan ready in case something goes wrong. If you’re looking for temporary boiler rentals in London, then you’ve come to the right place. For more information on our services, get in touch with our boiler experts today to see how we can help!