How to service a boiler yourself

Like any other mechanical gadgets, boilers require occasional servicing .This not only ensures that they stay in good condition but is a great protection against accidents caused by boilers. Over the years faulty boilers have been reported to cause severe injuries and even death to people.

Boiler fatalities are often linked to inadequate servicing including broken valves, rusted wires and over heating in the steam chambers whose pressure eventually causes explosions, hence causing harm. So if you own a boiler regular servicing should be on your priority list.

Ideally a boiler should be services at least twice a year. Most people service theirs once year when nearing the cold seasons of winter. But it advisable to give it least two treats a year, one in the summer and another just before winter when it will be come even more in handy.

As the topic suggests, it is possible to service your own boiler though, if I may add not entirely recommendable unless you know what you are doing. Engineers and those familiar with mechanical equipment can handle this with their eyes closed. Boilers are not to complicated compared to other equipment for those with an engineering background.

But you can service your small, home boiler, which will most likely have fewer wires to cut and fix hence minimizing chances of you mixing things up. Use the boiler manual from the manufacturer, if you misplaced it, goggle it, it should be available on the manufacturer’s website or something.

Once you have the manual the below is what you will be expected to work on in the boiler courtesy of


It is advisable to do the below when the boiler is off, unless you are an expert.

Visual examination-Does the boiler meet required standards. Some homes still have century old boilers which may be harder and even more dangerous to service on your own. If you have one of these, please take them to the museum and trade for a smaller more manageable one.

But even modern boilers can show physical signs of wearing and tearing, which is at most times identified by rusting. If so, it needs immediate servicing.

Check boiler components-Remove casing and check for main boiler components. Start with the heat exchanger and sensor; are they in the right position?

Terminals-Look for obstruction of terminals, ideally they should be open to allow steam to roll through

Gas valve-This should be well adjusted so that it does not leak. Smell for any sign of pungent smell which indicates leakage.

Burner-ensure the burner is in the right position.

Clean the inside casing- Its inside surfaces most likely they are greased.

After all is clean put back the casing and close it. Your boiler should be ready for use for a while before servicing again. But insist that unless you have no way out, please hire the services an engineer, it might just save you a lot of unnecessary headaches, if you get my drift!