Is it possible to know when your old boiler needs replacing? The signs might not be obvious, and considering that most boiler issues occur throughout the colder months, this can cause you big problems. 

9 Signs You Might Need a New Boiler

Thankfully, nine tell-tale signs could indicate that your current boiler is on its way out and needs replacing. These are:

No hot water or heating. There are a few causes for no heat or hot water. These include faulty thermostats, a failed valve or diaphragm, or frozen pipework. Regardless of what’s causing it, you’ll need to contact a qualified heating engineer to take a look and repair the issues.

Dripping or leaking. A boiler that is leaking or dripping could have a broken pressure valve or pump as a consequence of the pressure being too high. Corrosion may have also occurred around pipeworks or tanks. While one damaged valve can be replaced easily, more severe issues may require you to have a new boiler installed altogether.

Unusual noises. Notice some funny noises coming from your boiler? It could be due to a structural problem like excess air trapped in the system, or a loss of pressure. Pump failure might also have occurred. If you’re noticing a humming sound, this could indicate a faulty pump or thermostat.

An unlit pilot light. There’s a couple of reasons why your boilers pilot light has gone out. The thermocouple might be dodgy, restricting the supply of gas to the boiler. Or, deposits could have built around the pilot light itself. It is possible to re-light this yourself, although it’s best to investigate the cause of the problem in the first place.

Loss of pressure. A boiler suffering constant low pressure is not typical. It indicates a problem with your central heating systems like general wear and tear, faults, or leaks. The good news is that these are relatively easy to diagnose. In some cases, the entire boiler might need replacing.

10+-year-old boiler. Ever wondered how long a boiler lasts? The general estimate is about ten to fifteen years. As a general rule, the older a boiler is, the more likely it’ll need replacing. However, there’s no reason why certain systems can’t last much longer.

Kettling. Otherwise known as the noise made by boilers or central heating systems when there’s a fault, kettling can push your heating bills up. A common cause is the buildup of sludge or limescale near the heat exchanger, which restricts flow and causes a gurgling or rumbling noise. Unfortunately, a boiler making such noises may be beyond repair and require a total replacement.

Cold radiators. There are two main reasons why radiators might feel colder than usual. Firstly, a buildup of sludge, and secondly, trapped air inside radiators. If the problem is the latter, simply ‘bleeding’ the radiators to release the air is enough to fix the issue. If it’s caused by sludge however, your system will need flushing out. For more severe problems, a boiler replacement may be your only hope.

The boiler frequently switches off. The most common reasons for a boiler frequently switching off are a faulty thermostat, an ineffective pump, or poor flow caused by a closed valve. Otherwise, you might need an entirely new boiler fitting.

Quick Tell-Tale Signs Your Boiler is On its Way Out

Here’s what you need to look for:

  • Hot water or heating has stopped working as a result of a dodgy thermostat, diaphragm, valve or frozen pipe
  • A high-pressure boiler has sprung a leak as a result of a broken pressure valve or corrosion
  • Strange noises caused by a loss of pressure, trapped air, a pump or thermostat problem
  • An unlit pilot light resulting from a faulty thermocouple or deposits
  • Low pressure due to a leak or general wear and tear
  • A boiler that is more than ten years old
  • Kettling which is caused by sludge or limescale buildup causing restricted flow
  • Accumulation of sludge or trapped air in your radiators
  • A boiler that frequently switches off due to a dodgy thermostat, closed valves or poor flow

If you need any advice then contact The Yorkshire Boiler Company and they will only be happy to give you the correct advice.