Common Firebird Boiler Problems & Repair Advice

Common Firebird Boiler Problems & Repair Advice

Common Firebird Boiler Problems & Repair Advice

We all rely on our boilers day after day for heating and hot water, and more often than not they’re extremely reliable workers. Sometimes things do go wrong though and you can be left trying to soak up every last bit of heat from the cup of tea in your hands.

If you have a Firebird boiler, we’ve put this guide together to take you through some of the common faults to get your hot water and heating back up and running before you know it. While there are a few faults that can be identified and repaired yourself, some do still need an engineer, if that happens then you can use our free service toget quotes from reliable and trusted engineers near you.


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Who are Firebird?

Firebird began life in 1980 and have been making products designed to achieve the highest possible levels of efficiency ever since. Find out more about Firebird and their full range of boilers on Boiler Guide.

Top 5 Firebird Boiler Problems

  1. Central heating not coming on

    If your central heating isn’t coming on then it’s worth checking that your thermostats are turned on, whether the bottom of the radiators are warm (may need to be bled) and low boiler pressure. If none of these seem to be causing the issue then it’s likely to be an appliance issue, which will need an engineer.

  2. Low boiler pressure

    If your central heating system isn’t working correctly then your boiler may have low boiler pressure. You can easily check the pressure of the boiler yourself by looking at the built-in pressure gauge. If you see anything below 1 then you may have an issue but before going any further, take a look at our guide to low boiler pressure.

  3. Boiler leaking

    A leak can begin for one of many reasons, but it normally means that an internal component has broken, usually a seal or valve. In time, this may lead to corrosion, rust or cause electrical components within the boiler to short circuit. Contact a Gas Safe registered engineer as soon as possible to take a look at this issue.

  4. Hearing strange noises

    Limescale or sludge building up on your boiler’s heat exchanger can cause the boiler to make some strange noises which is known as kettling. This build-up can restrict the flow of water within the heat exchanger causing the water to boil then steam and whistle, like a kettle.

  5. Radiators not heating up

    A number of things can prevent your radiators from heating up, but the most common reason is sludge or air build-up in the system. If the bottom of your radiator is getting hot but not the top, you may need to bleed it. You can bleed the radiators yourself which our guide to bleeding radiators can take you through but you can get an engineer to do this for you.

Which Boiler Issues Need an Engineer??

To help you identify the potential causes of some common boiler problems, we’ve put together the table below so you’ll know if you’ll need an engineer.


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Problem Possible Cause Do you need an engineer?
No heat or hot water Can be caused by several things including broken diaphragms and airlocks, failure of motorised valves, issues with the thermostat or low water levels Yes
Leaking and dripping Most likely to be a broken internal component but it will depend where the water is leaking from Yes
Banging, whistling or gurgling noises Air in the system could be causing this, otherwise it could be that the water pressure is too low Yes
Pilot light goes out The thermocouple could be broken which is in turn stopping the gas supply Yes
Losing Pressure Could be a water leak in the system, the pressure relief valve needs replacing or due to recently bleeding radiators No, unless there’s a leak
Frozen condensate pipe This fault should be displayed on your boiler as an error code or warning notification Yes
Thermostat issues Thermostat could be turned off or not set to the correct settings (time etc.) Consider replacing
Kettling Limescale or sludge building up on the heat exchanger Yes
Radiators not getting hot Sludge or air building 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 or the pump not circulating the water in the system properly Yes

Error Codes

When there’s a fault with your Firebird boiler, it will make you aware by displaying an error code. If you’re not sure what it means, take a look through our list of Firebird error codes.

Should You Replace Your Firebird Boiler Instead?

If your boiler has been providing heating and hot water to your home for many years, then the time to replace it may be here. If you’re living in a detached home you could be making potential savings of £305* a year. 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 a Firebird Boiler?

If you think that a new boiler is the right way to go, then you need to to think about who you want to do the replacement.

First things first though, any installation should be carried out by a Gas Safe registered engineer. The big decision to make comes down to a local engineer or a national company.

Local engineers can often offer very competitive rates and if you like the personal touch then you’ll be happy to know that you’re likely to be dealing with the same person from the first phone call to the last.

When it comes to national companies, not only will you be getting your boiler replaced but also have the option to get some extra services like ongoing boiler cover and big brand protection.

We always recommend getting up to 3 quotes, rather than the first one you’re given, to give you the best chance of finding the deal that’s right for you. With our service you can receive free quotes from engineers near you.

Boiler Insurance and Ongoing Cover

If your Firebird boiler warranty has expired, then boiler insurance is something you might be thinking about incase anything goes wrong. Insurance that offer an annual service and safety inspections are well worth considering and remember that while you can take out insurance with your energy supplier, you’re under absolutely no obligation to do so.

Firebird Boiler Warranty

The majority of Firebird boilers come with a 2 warranty as standard that covers parts although they can stretch to as long as 10 years in some cases. Use our guide to Firebird warranties for more information.

To find trusted engineers near you, use our service to receive free quotes for a new boiler installation.

*According to the latest figures from the Energy Saving Trust


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