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My boiler is leaking – What Should I do?

Posted on by Rudkin & Herbert Team

My boiler is leaking – what do I do?A leaking boiler can be a concerning problem which is often a sign something within the internal workings of your unit has become damaged, worn or broken. From pressure issues to damaged seals and corrosion, there can be many sources of a leaky boiler. Crucially, should you find your boiler is leaking water, don’t try to tackle the problem yourself as this can be highly dangerous and cause even more problems; gas boiler repairs and maintenance should only be carried out by trained, Gas Safe Registered professionals.

Let’s take a look at some common causes of boiler leaks.

Causes of boilers leaking water

Pressure problems

Boilers are fitted with a pressure relief valve to ensure that, should the internal pressure get too high, this can be released to prevent damage. When pressure is released, this will be in the form of a small amount of leaked water. Intermittent dripping from this valve is normal and you shouldn’t try to stopper it as this could lead to pressure buildup and your boiler rupturing or exploding.

Dripping from other locations – such as the auto air vent – or large amounts of water coming from the pressure relief valve suggests there is a problem. Check your pressure gauge to see whether your pressure levels are indeed elevated – a value around one bar is normal. Call an engineer if you have cause for concern.

Faulty seals

The seals within your boiler can be a common area to wear, degrade and break, therefore causing water to escape. The seals at your boiler pump are a particular location where leaks can occur. Depending on the age of your boiler and the extent of the issue, you can either replace the seals or replace the whole pump.

Corrosion

Corroded parts are a leading cause of boiler leakages. Over time, components can wear down, lose strength and increase in permeability, resulting in your boiler developing a leak. Corrosion can be limited to a specific part and, if this is the case, fixing the leak can be as simple as replacing that part, if you catch it early. However, if corrosion has spread throughout your system, an entire replacement will likely be the best option.  

Loose pipes or joints

Another area to consider is the pipework. Joints in the pipework can loosen, wear and degrade, creating a water leakage; these issues should, however, be relatively easy to mend. If your pipework problems are due to a poor quality installation, this is a more complex issue to resolve and more extensive work will likely be needed to remedy the situation.

What action should I take if my boiler is leaking?

Boiler leaks can cause significant damage if they aren’t dealt with swiftly. If you spot a leak, you should:

  • Try to minimise any potential damage by using a container to collect the leaking water.
  • If the leak is substantial, you should turn off your boiler and your water supply at the mains stop tap to halt the flow of water.
  • Contact a Gas Safe Registered engineer as soon as possible to come and examine your boiler and carry out an appropriate fix.

Rudkin & Herbert have a team of highly trained, experienced Gas Safe Registered heating experts. Our talented engineers can cope with a wide variety of heating and plumbing work, from central heating system installations to quick and efficient boiler repairs and servicing. As a leading heating and plumbing business in Leicestershire, we have built a strong reputation for quality and reliability over our 25 years of operation. If you have any enquiries, don’t hesitate to get in touch with our helpful team today.

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