Boiler Turning Off – Why and what can I do about it?

Whether you are a home or a business no one wants their boiler turning off unexpectedly leaving you without heating and hot water. 

If your boiler turns off when you are not expecting it then keep an eye on it as often this then leads to it doing it a lot. BPS Facilities’ fully-trained, expert Gas Safe Registered Engineers can quickly assess what is happening and offer you solutions. Don’t leave issues with your boiler as often this can lead to further issues and component damage and more costly repairs. Whether you have a domestic or commercial boiler we have the qualifications and experience to resolve any issues for you.

Main Reasons for Boilers Turning Off Unexpectantly

Short cycling occurs when your boiler turns off and on more frequently than usual. Various causes can contribute to this problem, ranging from technical problems with the boiler to problems with the ventilation system. A boiler’s lifespan can be reduced due to short cycling, which increases its stress. Short cycling can be caused by a variety of reasons.

If your boiler is short-cycling, the first thing you should do is check the water pressure. If it is low, you can try to adjust it yourself or call a professional like BPS who know exactly what they are doing. If the water pressure is not the issue, then there are a few other things you can check.

Low Water Pressure

Low water pressure can also cause a boiler to short-cycle and result in the boiler turning off more frequently. Boilers need a certain amount of water pressure to operate effectively and if the water pressure is too low or high, the boiler will turn on and off more frequently in an attempt to reach the desired pressure. 

Low water pressure can be caused by a variety of issues including a property’s plumbing system, and leaks in pipeworks or radiators. Often there can be a problem or leak occurring that you aren’t aware of or can’t see so it’s important to book an appointment for an expert like BPS to come and assess your whole system for you including pipework. 

Frozen Pipes

Your boiler’s pipes may freeze if the outside temperature is very cold and as a result, your boiler may turn off. To avoid cracks in the pipework and subsequent leaks and, or burst pipes, it is critical to thaw them out as soon as possible. If you experience frozen pipes then BPS Facilities can arrange for one of our engineers to come out and assess your pipework and recommend any actions that will help to reduce the likelihood of this happening again. 

Thermostat Issues

You could also be short-cycling your boiler because your thermostat is too low. The boiler will turn off more often if the thermostat is set to a lower temperature than the room temperature. The problem can also be caused by a drought inside the house or by an inadequately insulated home.

Clogged Filters

Clogged or dirty filters can cause a boiler to short-cycle and keep turning off. A boiler filter is needed to remove dirt and debris from the water input before it enters the boiler. If the filter is dirty, it can restrict water flow and this can cause the boiler to turn off more frequently. BPS can quickly and safely check your boilers filters and recommend any action that is needed. 

Boiler Leaks

Boiler or pipework leaks can cause air bubbles which can prevent effective water flow and cause a boiler to turn off. Boiler and pipework leaks can be easily fixed by replacing components or pipes or using epoxy to patch them up. Always use an expert like BPS when it comes to your pipework as ineffective changes can cause further leaks, floods and, or damage to your boiler itself. 

Venting Problems

If a boiler’s venting system is not working correctly it can result in your boiler turning off unexpectedly. A boiler’s venting system removes harmful gases from a boiler and emits them outside. If the venting system is not working properly dangerous and harmful gases can build up and cause the boiler to shut off as well as causing injury or death.

Heat Exchanger

The heat exchanger in a boiler is one of the most important parts as it is responsible for transferring heat from the combustion chamber into the water in the boiler. If the heat exchanger isn’t working as it should do it can cause a boiler to off more frequently.

If a boiler is making strange noises this could mean there is a problem with the heat exchanger including rust or corrosion. If you think there may be an issue with the heat exchanger in your boiler we would advise that you call a professional like BPS facilities to ensure a qualified expert assesses it for you. 

Water Pump

A boiler’s water pump is responsible for circulating water throughout the boiler. If it isn’t working as it should do, it can cause the boiler to turn off intermittently.

Again, strange noises from your boiler could mean there is an issue with the water pump. You should call a professional for help if you are unsure or you don’t know what you are doing and they will quickly assess what the problem is for you and offer safe and effective solutions. Trying to repair or replace a water pump on your own can be dangerous if done incorrectly.


If your boiler keeps turning off then it is advisable to call a qualified heating engineer who is Gas Safe Registered like BPS Facilities.

We can quickly arrange for one of our qualified and experienced Gas Safe Registered Engineers to come out to your property and safely identify the problem for you. We will advise you of the solutions to ensure your boiler stops turning off when you aren’t expecting it, which may be a repair or replacement parts that are needed. 

We work with all sizes of boilers ranging from domestic through to full plant room operations and we work with all the major manufacturers. 

We are available 24/7 if you have an emergency and our professional call centre team will ensure the right engineer is dispatched to you quickly. 

Our customers are at the heart of what we do and a priority for everyone who works for us. 

If your boiler is turning off unexpectedly contact us today on 029 20 484114 and one of our team will arrange for a suitably qualified engineer to come out and assess your boiler system for you.


Trying to repair or replace parts of your boiler when you don’t have the experience or qualifications can be dangerous, therefore you should always use a Commercial Heating/Boiler/Plumbing Engineer who is Gas Safe registered for any pipework, maintenance and servicing as well as the installation as they will have the qualifications, skills and experience to ensure your boiler works effectively and safely for you.

BPS offer these services as well as Boiler Management Services to cover your maintenance, servicing and repair needs. We will service and maintain your systems when needed and our emergency repair service means we will come out to you quickly, 24/7, 365 days a year to ensure your boiler system is back up and running quickly for you.

What are the benefits of having a Boiler Management Company?

The benefit of a boiler management company is that you will no longer have to find a reputable, professional and reliable boiler company whenever your boiler needs maintenance or repair, as well as minimizing the downtime you will endure should an emergency occur. We schedule your boiler maintenance and service visits ahead of time to ensure that it is always working effectively, efficiently, and safely, as well as ensuring that it is still covered by the manufacturer’s warranty.

BPS are specialists in the design and installation of all types of heating systems. We have extensive experience in Mechanical Services Heating system installations whether you have the requirements for a new installation or maintenance of an existing system as well as outstanding customer service every time.

We are a customer-focused company and each member of the Total Boiler Services team is committed to delivering the best service every time. We only send engineers to do a job if it needs to be done, and they complete all jobs to the highest standard. 

BPS Values

Our core values are trust and honesty, they run throughout our business and are reflected in everything we do, from your initial call to us, our regular contract review meetings and the services our engineers and team provide. We deliver a high-quality service every time and our team is fully empowered and have a desire to do this every time.

If your boiler keeps turning off contact us today on 029 20 484114 and we will arrange for one of our engineers to come out to assess it for you. 

Check if you may be eligible for the Boiler Upgrade Scheme or find out if you could be eligible for money off low carbon heating technologies here.