A 10-step checklist to good boiler servicing

Posted by British Gas in Your Home

boiler man

From de-scaling your kettle to bleeding your radiators, regular servicing is an important part of maintaining your household appliances, and never more so than when it comes to your boiler. But what does good boiler servicing involve? Follow this checklist and you’ll be well on your way to making sure your boiler is properly maintained.

1. First up, most boiler engineers recommend annual servicing as being adequate for the majority of household boilers. The professional doing the boiler service should be Gas Safe Registered (this accreditation has replaced the commonly-known CORGI certificate).

2. The service should start with a visual check that establishes that the boiler, its installation and its positioning, comply with the rules laid out in building regulations, electrical regulations, gas-safety regulations, water by-laws, installation instructions and British Standards. All must comply with present legislation.

3. The next part of the boiler service is the pre-service check. To do this the engineer will fire the boiler, check the its basic operation and identify any initial faults.

4. The casing should then be removed (something you, as the householder, should never do yourself). At this point the main components will be examined to see they are clean and free from damage. These components include the main burner, the main injector, the heat exchanger, condense trap, the spark centre probe and the seals and fans. Also part of this section of the boiler service is the checking of all electrics for overheating, the cleaning of all inside surfaces, inspecting all pipe work (water & gas) and joints, and very importantly, making sure the flue terminal is unobstructed.

5. Next, the gas valve should be checked with a flue gas analyser to make sure the boiler is combusting properly.

6. If any of these tests show a fault, the engineer should inform you of any additional costs that the repairs will incur. It is widely recommended that the parts are only replaced with those also made by the manufacturer of the boiler, to ensure that they’re compatible.

7. Next, the engineer should carry out a gas-tightness test to establish if there are any leaks in the system.

8. The casing of the boiler should then be carefully replaced.

9. If you are unsure about the length of time that your boiler service should take, most experts state that a basic service will last around half an hour.

10. The final step is the service report. This is your chance to compare what the engineer has stated they have done, with what has actually been completed. Only sign-off the report if you are satisfied with the work done compared to the checklist. To guarantee yourself an annual boiler check, you can sign up for HomeCare from British Gas. Just head to this site: http://www.britishgas.co.uk/products-and-services/boilers-and-central-heating/cover/homecare.html

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Robert Osborne

On the occasion of each of the previous three annual services I have asked the engineer to determine what causes my Glow-worm 18hxi boiler to ignite loudly. I have requested that the noise is either eradicated or diminished. This has been achieved on each occasion but within days of the engineer's inspections the loud reverberating noise returns. On each occasion I believe the engineer has adjusted the pump which is up in the attic. It is disconcerting to have a boiler which sounds as though it is increasing the boiler ignition noise to a high level. My next service has just been booked for Tuesday 8th April 2014 between 12.00 and 14.00.

Mrs F Sibson

The boiler efficiency is great however 5/6 engineers have visited and even replaced the plastic pipes and even replaced parts of the pipe. The boiler was new & installed by British Gas 4th August, 2011 and cost us £4,489 plus another bill for electricians. We had it serviced by your Brit.Gas Engineer on Wed. 12th inst., but it is still leaking at the joints. He has been told and is returning tomorrow.

Frank partington

Sounds like your expansion tank is leaking internally, inside the tank is a rubber ballon which expands when the heated water expands this stops water escaping into your overflow if the ballon burst it fills with water and you have no expansion so it can only go into your overflow pipe . The way to check is find the expansion vessel a big round thing in the boiler on it you will find a valve like on a car tyre if you press it for two seconds and water comes out , it is capput if air comes out it will need re pressurising with a bike pump. You will need to look at manufacturers instructions to get the correct pressure, also check your pressure relief valve is not letting by any water when at the correct setting.

mrs maureen moffatt

our boiler water pressure keeps rising past the reccomented leval we correct by letting water out of one of the radiators please advise mrs m moffatt

Keith Murdoch

We have a new build with gloworm boiler, santon solar plus tank, and pottertom water solar panels. Do you service all these, that is the complete system?