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How do I reset my Vaillant boiler?


In the video, you will notice that Leon, our boiler engineer, is sitting in front of a Vaillant boiler. With Vaillant boilers or their latest versions, resetting it comprises a straightforward process. If you take this particular Vaillant boiler, on the front, you will see a button with the icon of a flame next to it. So, all you have to do is to press the button, hold it for two seconds and let go. It will then reset the boiler. It’s pretty easy to handle, and you can do it yourself. This blog will help you answer the question, how do I reset my Vaillant boiler? Keep reading.

In a way, this resetting resembles something like rebooting a system. However, it is alright if this is something that happens rarely. If this keeps happening too often, then you might be having a problem on your hands. Alternatively, if you are ever on the lookout for a boiler service London engineer, then visit our homepage to find out more. 

Boiler Servicing and Maintenance

We believe that your safety and the safety of your home is of utmost importance during a boiler service or any other gas appliance-related work. Our customer-first approach is what has allowed us to build up a stellar reputation over the last decade. The only way to ensure that your boiler or appliance is functioning efficiently and safely is with regular maintenance and professional servicing, which are usually carried out annually. There are a number of reasons to get a yearly service.


Why is my Vaillant boiler not firing up?

There are several reasons your Vaillant boiler may need to power up correctly. Most of these newer devices are designed to enter into ‘lockout’ mode when there is a problem or safety risk. Keep an eye out for a fault code displayed on the boiler’s indicator. Contact a professional boiler engineer if you’re unsure what to do. In the meantime, refer to the following list:

  • A leak in the heating system
  • Improper supply of gas
  • Blockage in the heat exchange
  • Deteriorating internal parts
  • Low pressure
  • Ignition failure
  • Overheating

Still asking yourself, how do I reset my Vaillant boiler? Don’t fret. We are here to help clear any doubts. Let’s find out more. In the meantime, why not check out our extensive list of informative blogs. Since we’re on the subject of Vaillant boilers, learn more about why does my Vaillant boiler keep losing pressure?

What is a boiler lockout?

A boiler lockout is when your unit powers down because of an issue with the heating system. The first thing to do is to go for a reset. However, it is essential to understand that a reset will not fix an underlying problem with the boiler. This is where you will need help from a certified Gas Safe engineer. Now, usually, during a boiler lockout, there are bound to be red or green lights blinking on the appliance to indicate the problem. With a Vaillant boiler, the display panel will display a fault code, F27. Remember that if the boiler you have is anything other than a Vaillant, you’ll need to check the device’s manual (hopefully, if you have it) and determine what to do next. We hope this blog is getting you on the right path with answering – how do I reset my Vaillant boiler?

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We cover all of London - from Wandsworth to Westminster and Brixton to Bromley and everywhere in between. If you’re looking for a boiler service in London then you’ve come to the right place. Boiler Solutions is one of London’s leading plumbing and heating companies.


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How long does water take to heat after resetting boiler?

You will notice that gas water heaters can heat your water faster. Accelerated heating, in this case, is due to gas water heaters having burners that reach higher temperatures more rapidly than the heating coils in electric water heaters. However, these are merely quick comparison averages. Several decisive factors would also affect your water heater’s recovery time. So, your recovery rate could be higher or lower than average. These could be affected due to the following – fuel type, tank size, temperature rise, etc.

Does turning a boiler off damage it?

Although it is perfectly safe to switch your boiler off at the mains, depending on the type of heating system and its age, doing so for long periods could cause problems with your central heating. For example, it might lead to elements such as the pump or valve seizing up. If you are considering switching your boiler off at the mains, then getting down a boiler engineer to conduct a boiler service in advance is a good idea to check for any potential issues. At the same time, why not check out our blogs and read up on articles such as the one about types of boiler systems types of boiler systems?