Expert Advice & News

5 Common Boiler Problems and How to Fix Them

Neglecting boiler servicing can result in reduced efficiency, increased energy costs, and even safety hazards. Your boiler is the central component of your home's heating system. Frequent boiler maintenance not only keeps your heating system operating efficiently but also extends its lifespan, which ultimately saves you money. Let's now examine the five typical boiler issues and how to fix them.

boiler issues and how to fix it

5 Common Boiler Issue And How To Fix It

No Heat or Hot Water

Problem: A broken thermostat, diaphragm, or airlock may be the cause of your boiler's inability to provide heat or hot water.

Solution: Verify the thermostat settings, release trapped air from radiators by bleeding them, and look for any damage to the diaphragm.

Unusual Sounds

Problem: A malfunctioning pump, low water pressure, or air in the system could be the cause of strange noises like whistling or banging.

Solution: Check for low water pressure, bleed the radiators to release trapped air, and look for any problems with the pump.


Problem: Some problems, such as a malfunctioning pressure valve, corrosion, or a broken internal component, can result in leaks.

Solution: Determine the source of the leak and replace the faulty component, which could be a valve or a damaged pipe.

Boiler Losing Pressure

Problem: A malfunctioning pressure relief valve, leaking water, or bleeding radiators can all lead to low boiler pressure.

Solution: Check for leaks and seal them, repressurize the system if required, and swap out the problematic pressure relief valve.

Pilot Light Going Out

Problem: A malfunctioning thermocouple, problems with the gas supply, or a draft could cause the pilot light to go out.

Solution: Relight the pilot light, check the gas supply, and inspect the boiler for drafts.

More: Tips to Make Sure Your Boiler is Ready for Winter

Frequently Asked Questions (FAQs)

How Frequently Should My Boiler Be Serviced?

Boilers should ideally have annual servicing to guarantee peak efficiency and identify possible problems early.

Are Boiler Service Plans Worth It?

Yes, service contracts can offer regular maintenance, peace of mind, and in certain cases, repair cost coverage.

Can I Service My Boiler Myself?

Although homeowners can perform simple maintenance tasks like bleeding radiators, professional boiler service is advised for thorough inspections and repairs.

How Do I Prevent Boiler Problems?

To avoid bigger issues, give your boiler regular maintenance, bleed radiators, check pressure and take quick action when necessary.

Contact our heating engineers in Mansfield

Is your boiler in need of some fixes? Don't wait for winter chills to set in. Contact us at 07727663791 or 01773691000, or drop us an email at for reliable and efficient boiler service. Keep your home warm and cosy all winter long!