How to Reset a Boiler: The Simple Steps and What to Expect

It’s annoying when your boiler seems to be going wrong and you’re just not sure why, or what the next step is supposed to be. It’s at this point you’re thinking the boiler needs resetting and so need to know how to reset a boiler.

And ideally, you just want to be able to reset the boiler to fix it, so you can get on with your day. So if you’re at that stage, then we’ll take you through the steps you need to know in this article.

To reset your boiler, consult the manufacturer’s manual to become familiar with your model. Press the reset button for 10 seconds and let go. Then wait 2 minutes and you should hear and see the boiler reset. Repeat the process if this does not work, but do not keep pressing the reset button.

That’s the quick answer, but why you need to reset a boiler can be influenced by a number of factors.

Resetting a boiler can depend on the type of boiler you have, and the manufacturer’s instructions will include details on how to do this.

Typically though, when a boiler is displaying an error code, then one way to reset it would be by turning off the power supply from its circuit breaker or fuse box for at least 30 seconds. Then you can turn the power back on and wait to see if the error code disappears or if further issues occur.

If this doesn’t work, it’s best to consult your boiler manual for more detailed instructions. This may involve pressing a reset button or something more complex, like flushing the system by opening valves in specific parts of your heating system that allow water to flow through.

Some boiler error codes can also be resolved by cleaning or replacing certain parts of the system, such as the filters and valves. You may need to consult a professional or purchase additional parts in order to complete these tasks.

Regardless of the specific steps, you need to take to address your boiler error code, it’s important to remember to be careful, patient and thorough.

Doing a little research beforehand to figure out what the issue may be can make the process much less stressful!

Now you might be wondering where the reset button is on your boiler, so here’s some help on that.

Where is the restart button on my boiler?

In order to reset the boiler, you first need to locate the reset button.

The reset button on a boiler is typically found somewhere on the front or side of the unit. Depending on your specific model, it may be labelled with a “Restart” or “Reset” button, or simply as an icon that resembles a small computer.

In order to locate this button, you will likely need to refer to your boiler’s user manual or contact the manufacturer directly.

Once you have found the button, you should be able to press it to restart the boiler and resolve any operational issues.

If you are still having trouble locating the reset button on your boiler, or if the unit continues to experience issues after pressing it, be sure to consult a professional who can get the problem solved quickly.

And perhaps consider starting a boiler plan to cover your boiler in future so you never need to worry about it again.

So let’s dive in a little deeper to first understand what’s going on within the boiler system so we can ascertain if a reset is likely to work.

How to reset a boiler – Identifying the boiler fault

There are a few things that can go wrong with a boiler, and if your boiler is not working properly, it may need to be reset.

Most modern boiler systems operate using an electronic thermostat that is designed to monitor and regulate the temperature of your water.

If there is any disruption or fluctuation in this thermostat, it will shut down the power to the entire boiler system and you may then hear a consistent clicking noise coming from your boiler. You may hear the clicking sound on a constant basis.

This problem can be caused by a wide array of issues, but the most common are as follows:

1. Faulty boiler thermostat sensor

This is by far the most common cause of this particular problem and it essentially means that your high-temperature cut-out (HTCO) needs to be reset.

Resetting your HTCO is something that a skilled electrician can do with ease and it is typically a very inexpensive fix.

2. Failing circuit board

Another common issue that can cause your boiler to click constantly is a faulty circuit board in the system.

This is, again, something that skilled electricians will be able to diagnose quickly and easily, as well as repair or replace at a reasonable cost.

3. Faulty boiler pump

If your boiler is making a clicking noise and the water in your system isn’t circulating, it could indicate that there is a problem with your pump.

A faulty pump can be one of the most difficult issues to diagnose, as it could be caused by any number of factors.

However, a professional electrician will be able to examine your system and determine the source of the problem.

If a faulty pump is a problem, it will need to be replaced in order to restore the normal functioning of your boiler.

4. A build-up of residue in the pipes and system

If your boiler is making loud banging noises, it could be a sign that there is a build-up of residues and deposits in the pipes and radiators of your system.

This can be caused by corrosion or other issues with your system, such as low water levels or a lack of circulation.

To resolve this issue, you will need to have your boiler professionally inspected and cleaned.

A professional electrician will be able to examine your system, identify the source of the problem, and recommend any necessary repairs or cleaning procedures.

Depending on the extent of the damage, this could involve replacing components like valves or pumps in order to restore normal operation.

5. Extreme pressure fluctuations

As your boiler runs, the water and gas in your system are constantly moving through your pipes.

When the pressure of these fluids fluctuates too dramatically, it can cause problems with the operation of your boiler. Extreme fluctuations can damage components like valves, pumps, and radiators.

There are a few different things that can cause these fluctuations in pressure. Poor installation, improper maintenance, or ageing equipment are all potential culprits.

In some cases, your boiler may also be too small for the size of your home or building, resulting in increased pressure on its components.

If you notice extreme fluctuations in pressure, it is important to work with a professional to identify the source and organise a suitable repair.

6. A leak in the system

One of the most common and frustrating problems with heating systems is a leaking system. This often occurs when pipes, valves, or fittings start to wear out over time and lose their seal.

Leaks can be difficult to detect, as they may not always show up right away. One common sign that your system is leaking is if you notice higher energy bills or an increase in the amount of time it takes for your system to heat up.

If you suspect that your heating system is leaking, it is important to work with a professional who can identify the source and help you make any necessary repairs.

Whether you are dealing with a small leak or a larger one, addressing the issue as soon as possible will limit the potential damage and prevent further problems down the road.

7. Blocked plate heat exchanger

One common cause of boiler system leaks is a blocked plate heat exchanger.

The plate heat exchanger serves an important function in your heating system, transferring thermal energy between indoor and outdoor environments.

However, if it becomes blocked or damaged, this can lead to performance issues as well as air leakage within the system.

Symptoms of a blocked plate heat exchanger include higher heating bills, decreased efficiency, boiler system leaks, and increased noise levels.

If you notice any of these symptoms, it is important to have your heat exchanger professionally inspected as soon as possible.

Depending on the severity of the blockage or damage, you may need to replace the entire unit or just the damaged parts. A boiler professional will be able to assist with this.

8. Old and worn components

One of the most common causes of damage to plate heat exchangers is old, worn components, especially on older boiler models.

These include worn gaskets and seals that can become cracked or damaged over time, resulting in leaks and performance issues.

If you suspect that any of the above issues are causing your boiler to click constantly, it is best to consult with a skilled electrician as soon as possible to get the problem diagnosed and resolved.

How to reset a boiler – Consistent issues

If you’ve been dealing with a clicking boiler for some time now, it’s important to pay close attention to any other strange symptoms that may be occurring in your system.

For example, if your boiler seems to be heating less efficiently than usual or not heating at all, this could be a sign of an entirely different issue and should be dealt with immediately.

Or if the boiler is making a noise then that could be for a number of reasons which we’ve outlined in our specific article here on boiler noises. [Link to the previous boiler noise article]

So now you know a little more about what is happening, you might want to know how to reset a boiler yourself, so you can get on with your day.

Can you reset a boiler yourself?

Given everything that we’ve outlined above. If you’re confident about where to locate the reset button on your boiler, and you can confidently go through the steps, then yes absolutely you can reset a boiler yourself.

Otherwise, we would always advise you to call a professional if you are worried or not confident in carrying out the reset yourself.

How to reset a boiler – Next steps

If after carrying out the steps, your boiler is still making an unusual noise then it’s probably worth calling a professional as this may be a sign of something more severe.

One of the best ways to avoid issues is to have regular maintenance performed on your system.

This involves cleaning out your components and replacing parts that may be starting to wear down. Regular maintenance also allows you to identify any other issues that could result in an issue. So contact us about our boiler plan now, so we can get your boiler covered.