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Turning Your Boiler Back on at the End of Summer

summer is coming to an end

The weather is starting to get colder as we creep into autumn and for many of us (as much as we don’t want to admit it) it’s time to turn the boiler back on. If you’ve had your boiler turned off for the summer it’s possible that, when turned back on, your system could present faults or even not work at all. We’ve put together a few pointers for successfully restarting your boiler after summer.

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Get a Boiler Service

You should get your boiler serviced every year by a Gas Safe registered boiler engineer. Scheduling this for the end of summer/ start of autumn is ideal as it will help to highlight any issues that occurred as a result of having the boiler turned off for summer, as well as any problems in general. Usually engineers are less busy during the warmer parts of the year, meaning you might be able to book a more convenient appointment.

Gradually Switch Your Boiler Back On

If you’ve had your boiler switched off over the summer you should have been aiming to fire it up once or twice a month to help prevent a build-up of things like dust, and corrosion. This will also flag up any potential issues before switching back on permanently when the weather gets colder. If you haven’t been doing this and it’s not too cold yet you could still fire it up a couple of times over the coming weeks.

Bleed Your Radiators if they Need it

You’re unlikely to notice if your radiators have stopped working effectively over the summer because they’ve probably not been on. If you find that one or more of your radiators isn’t heating up in certain areas (or not warming up at all) then you might need to bleed your radiators to remove trapped air.

When it comes to radiators, it’s also worth noting that thermostatic radiator valves can get stuck if they’re left closed for too long which means that they won’t work when it comes to turning the heating on again. Try to keep them open as much as you can during the summer months.

Don’t Turn the Heat up too Fast

It can be tempting to crank the heat up as soon as we start feeling the cold, but doing this could mean you set the temperature higher than necessary and end up wasting both energy and money. Instead try to turn your heating up one degree at a time. Generally your thermostat should be set at a temperature you feel comfortable at. For most households this is between 18 and 21 degrees Celsius (and slightly higher for the elderly). It’s also important to remember that turning a thermostat up won’t make your home heat up any faster, it will just reach a higher temperature.

Check for Faults

During a long period of inactivity (over the summer) is when problems with your boiler are most likely to happen.

If your heating system sounds like a kettle when you turn it on then there could be a build up of sludge or limescale on your boiler’s heat exchanger, known as kettling. A build up of this nature can restrict the flow of water within the heat exchanger, causing it to overheat, steam and boil.

Pilot light going out
You should start by checking that there are no issues with your gas supply before trying to reignite the pilot light. This could be caused by a broken thermocouple that’s stopping the gas supply or maybe even a draught blowing the pilot light out.

You can use our guide to find out how to resolve the 10 most common boiler problems.

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Consider How Old Your Boiler is

If your boiler has been quietly sat on the wall for many summers now then you might want to consider installing a new one. Most boilers have a lifetime of 10 years and as time goes by they can become less efficient which should make installing a brand new boiler a top priority before the colder winter months set in.

Increase Low Boiler Pressure

Boilers lose pressure over time and a boiler that doesn’t have enough pressure won’t work. You can see the pressure of your boiler by looking at the pressure gauge and it should be at around 1 bar, any less and there could be an issue with your system. There are several reasons the boiler pressure could be low, such as there being a leak in the system, the pressure relief valve needing to be replaced or the radiators have recently been bled.

Checking for a leak in the system should be the first thing that you do and if you see one then you should contact a registered engineer. If you can’t see a leak then you can repressurise the system.

Remove Clutter

If your boiler is in a cupboard then clear the space around it of any coats, shoes or anything else that might have been put to one side during the summer. This is because boilers require ventilation and engineers will also need easy access for any services.

Boiler Not Working After Being Off All Summer?

If you’re not having any luck getting your boiler going again after summer then you should contact a qualified engineer. By using Boiler Guide, you can get free quotes from up to 3 trusted engineers in your area and best of all there’s no obligation whatsoever.

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