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What causes a boiler to breakdown

  • Posted by:
  • Admin
  • Tags:
  • Boiler Breakdown, Boiler Repair, What to do
  • Posted date:
  • 18-07-2019
What causes a boiler to breakdown

Boiler Breakdown, in most cases, comes without warning. When your boiler is running correctly, and all is good in the world, it is easy to take it for granted. You expect that it will always provide you with hot water and heating when you need it.

As the winter months approach, the skies darken and the temperature drops, this is the time of year when we most value our heating. Unfortunately, after months of being left unused, it’s also the time of year when our boiler is most likely to break down. It’s a cruel irony that prompts many to have their boilers serviced during the summer ready for the winter months.

If you’ve had neither the time nor the foresight to carry out essential maintenance and find yourself with a leaking, noisy or temperamental boiler, check our list of common causes of boiler breakdown.

Inaccurate Thermostats

If your boiler never entirely produces enough heat for your home, then it’s quite likely that your thermostat is the issue. They are delicate pieces of kit, and over time, they can lose accuracy. A slight knock or simple wear can require a boiler engineer to calibrate your thermostat, or you can buy a newer, more energy-efficient thermostat at little expense.

Frozen Condensation Pipe

The newer type of condensing boilers has a condensation pipe at the back of the unit which can if improperly insulated, become susceptible to freezing during winter. Frozen pipes will cause your boiler to cease working altogether.

Enlisting the help of our professional repair services means we can safely defrost your piping and get your boiler up and running again.

Pilot Light is Out

Pilot lights shut off to prevent an explosive build-up of gas and can be caused by leaking gas pipes. If you smell gas, you should call a boiler engineer immediately rather than attempt to relight the pilot light.

Loss of Pressure

Leaking water pipes and loss of pressure can indicate that you need to replace the pressure release valve. Check the pipes for apparent signs of leakage, attempting to resolve this yourself can lead to further boiler damage.

Strange Noises

Mainly caused by air entering the system, but can also indicate that your boiler pressure is low. Check for leaks, and call an engineer to rid you of those night-time noises.

At Emergency Plumbers Southampton, we have many years’ experience in successfully repairing, installing and enhancing central heating systems. Call us today for a free quote and some friendly expert advice.


If you are thinking about installing a new combi boiler, get in touch with our boiler engineer to discuss your central heating needs.