Annual Boiler Servicing in Haydon Wick

The usual culprits are a blocked condensate trap, a weakened expansion vessel causing pressure swings, a dirty burner and scale building up on the hot water side. None of these tend to fail overnight, which is why a yearly service is a good chance to spot them before they leave you without heating or hot water.

The parts behind it include the flow sensor, the diverter valve and the hot water side of the boiler, where scale often builds up in hard water areas. Mention the problem when you get in touch, and ask about any part you are unsure of so you can decide what to do.

Read the manufacturer's terms, as most require a yearly service by a suitable engineer and sometimes registration with the manufacturer. Keep any service paperwork and check whether the logbook needs filling in. Missing a service can give the manufacturer grounds to refuse a claim, so it is worth setting a reminder.

Yes. Haydon Wick is part of my regular area, along with neighbouring Blunsdon, Purton and Lydiard Millicent, and Swindon itself. Send me your postcode and I will confirm.

That plume is normal for a condensing boiler. It is water vapour from the flue gases, and it is most visible on cold days. What is worth mentioning is a plume that suddenly changes, a smell, or staining around the terminal. If you notice any of those, mention them when you get in touch.

Yes, that is fine. Plan for a spell without heating or hot water while the boiler is off, and expect some noise during the work. The area around the boiler needs to be clear, with access to the gas meter, but otherwise you can carry on as normal.

It is worth checking whether the boiler responds correctly when the thermostat calls for heat, and how the thermostat is wired or connected. Some smart thermostats need a particular setting to work well with condensing boilers, and the wrong setup can make the boiler work harder than it needs to.

Debris collects in the condensate trap over time, and if it blocks, the boiler can lock out or the condensate can back up inside it. Manufacturers' service schedules often include cleaning the trap and making sure the pipe runs freely to the drain, which makes it one of the more useful items on a modern combi.

Not at all. Booking one now gets the boiler looked at, though if the manufacturer's cover required yearly services, the missed years may affect it, so read the terms. Either way, a service now gives you an up-to-date picture of its condition.

Leave it on with the heating set low or on frost protection rather than switching it off at the wall, so it can protect itself and the pipes. Check the pressure before you go. If a service is due around the trip, book it beforehand so you know the boiler is in good shape.