Common Intergas Boiler Problems & Repair Advice

Common Intergas Boiler Problems & Repair Advice

Intergas Boiler Problems and repair advice

When we have a new boiler installed, we visualise the warm paradise our home is going to be and don’t really want to think about them going wrong.

While boilers are extremely reliable appliances, should the worst happen this guide is here to provide you with repair advice so you know exactly what to do. Many common boiler problems don’t even need the expertise of an engineer but if one is needed (and if in doubt always get in touch with an engineer), you can get free boiler repair quotes with our service.

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Who are Intergas?

Established in the Netherlands, Intergas launched their first condensing boiler in 1989 and have since become one of the leading brands in energy efficient condensing boiler technology. You can find out more about Intergas and their full range of boilers on Boiler Guide.

Top 5 Intergas Boiler Problems

  1. Boiler keeps losing pressure

    Low boiler pressure can end up leading to your central heating system not functioning properly. It’s easy to check a boiler’s pressure level by simply taking a look at the built in pressure gauge. If you see anything below 1 then you may have an issue. Find out more with our guide to low boiler pressure.

  2. Frozen Condensate Pipe

    A frozen condensate pipe can occur during the colder months as this pipe leads outdoors to a drain to dispose of acidic water. If your condensate pipe has frozen, there are online tutorials on how to thaw a frozen condensate pipe by pouring warm water over it, if you feel unsafe doing so you should call out a registered engineer.

  3. Hearing strange noises

    Any strange noises you hear coming from your boiler tends to be caused by air in the system, low water pressure or it’s kettling. To find the cause of your noisy boiler, use our guide to central heating noises.

  4. Leak coming from the bottom

    If you notice that water is coming from the bottom of your boiler, then some internal parts have failed. This could either be a connected joint, rusty pipes, corrosion of the heat exchanger, incorrect boiler connections, auto-air opening or leakage of the heating pump. Contact an engineer who will be able to determine the cause and prevent the leak from getting any worse.

  5. Radiators not heating up

    Your radiators not heating up can be down to a number of reasons, but the two most common are sludge or air build-up in the system and unequal distribution of heat. If only the bottom of your radiator is getting hot, you may need to bleed it. This is fairly straightforward and our guide to bleeding radiators can take a you through it. If you don’t feel safe bleeding the radiators yourself then contact an engineer.

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Which Boiler Issues Need an Engineer?

Not all boiler problems will need the trained eye of an engineer and can be done yourself, use the table below to know when you should be contacting an engineer.

Problem Possible Cause Do you need an engineer?
No heat or hot water Broken diaphragms and airlocks, failure of motorised valves, issues with the thermostat or low water levels Yes
Leaking and dripping Most common cause is a broken internal component but it will depend where the water is leaking from Yes
Banging, whistling or gurgling noises A common cause is air in the system, alternatively it could be that the water pressure is too low or it’s kettling Yes
Pilot light goes out Could be a broken thermocouple which is stopping the gas supply Yes
Losing pressure There could be a water leak in the system, the pressure relief valve needs replacing or the radiators have been bled recently No, unless there’s a leak
Frozen condensate pipe Your boiler should display a fault code or warning notification Yes
Thermostat issues Thermostat may be turned off or not set to the correct settings (time etc.) Consider replacing
Kettling Limescale or sludge building up on the boiler’s heat exchanger Yes
Radiators not getting hot Sludge or air build up in the system or an unequal distribution of heat Your radiators will need to be bled which doesn’t require an engineer but if you don’t feel like carrying out the task yourself
Boiler keeps switching itself off Could be low water pressure, a problem with the thermostat or a lack of water flow due to a closed valve, air in the system or the pump not circulating the water in the system correctly Yes

Error Codes

So that you know there’s a fault with your Intergas boiler, an error code will display on the screen, to know exactly what it means take a look at our list of Intergas error codes.

Should You Replace Your Intergas Boiler Instead?

Have you had your Intergas boiler for quite a few years? If you have, potential savings of £305* a year in a detached home may make you want to think about getting a new one. Take a look at the table below to see how much you could be saving depending on your current boiler rating and property.

House Type G (<70%) F (70-74%) E (74-78%) D (78-82%)
Semi-Detached £200 £140 £120 £120
Detached £305 £210 £180 £180
Detached Bungalow £155 £105 £90 £90
Mid terrace house £175 £120 £105 £105
Mid terrace house £95 £65 £55 £55

Who Should You Choose to Replace an Intergas Boiler?

If you like the sound of a new boiler then you need to choose who to replace it, which can be a big decision. In the end, your choice will come down to either a local engineer or a national company.

Local engineers can offer very competitive rates and you’ll be getting a very personal service from the same person throughout your communications. To make sure you’re getting the best deal, it’s a good idea to get a quote from more than 1 engineer, we recommend getting up to 3.

National companies may end up costing you a little bit more but it could be worth it as big brand protection is a huge bonus. They will also be able to offer extra services such as ongoing boiler cover.

Boiler Insurance and Ongoing Cover

When your warranty has come to an end you might want to consider covering your boiler with boiler insurance. You can easily take this out with your energy supplier but there’s no obligation to do so. When comparing boiler insurance, the best ones will offer and annual service and safety inspections.

Intergas Boiler Warranty

As standard, Intergas boilers come with a 12 month warranty but depending on the model you have installed the warranty can extend from 3-10 years. Take a read of our complete guide to Intergas warranties to find out even more about what they offer. A boiler warranty is well worth having as you’re covered should anything go wrong so keep it valid by arranging an annual Intergas boiler service by a Gas Safe engineer.

Send us an enquiry today to receive free quotes for a new boiler and find trusted engineers near you with our free service.

*According to the latest figures from the Energy Saving Trust

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