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    Transformers

    At National Boiler Spares, whether you’re replacing a worn boiler transformer or upgrading your system, our selection of high-quality transformers for boilers guarantees reliability and optimal operation.

    Boiler transformers are essential electrical components designed to provide power to key components such as the ignition system, control circuits, sensors, and heating elements. They ensure the safe operation of the boiler by preventing electrical surges and supplying consistent voltage to sensitive components.

    Signs that your boiler transformer may need replacing include: 

    • The boiler isn’t starting or ignition failure
    • Frequent trips in circuit breakers
    • Strange noises coming from the transformer area
    • Visible signs of wear or damage, such as overheating, burning smells, or discolouration
    • Inconsistent performance or flickering lights in the control system

    Promptly replacing boiler transformers is crucial to ensure the safety, efficiency, and longevity of your boiler system.

    Buy boiler transformers online 

    National Boiler Spares stock a wide range of boiler gas valves for many brands and manufacturers including Baxi, Worcester, Vaillant, Ideal, Glowworm and more. Try using our search bar above to find your specific boiler transformer by parts or GC number with ease.

    Why choose National Boiler Spares?

    At National Boiler Spares, we are a trusted source of high-quality boiler spare parts and heating components for customers throughout the UK and beyond. Our comprehensive range of new brand genuine parts covers the latest and older model boilers, all available at the best possible prices online or over our trade counter. We work closely with our suppliers to ensure that we always have the latest and most innovative products available, and we are constantly expanding our boiler spares and parts range to meet the evolving needs of the industry. 

    Boiler Transformer – FAQS: 

    What is a boiler transformer, and what does it do?

    A boiler transformer is an electrical component used in boilers which converts electrical power to the necessary voltage required for components like the ignition system, control circuits, and sensors. It ensures safe and efficient operation by converting high voltage to a level that is compatible with sensitive boiler components.

    How long does a boiler transformer last?

    A boiler transformer typically lasts 10-20 years depending on factors like usage, maintenance, and environmental conditions. Regular servicing can extend your boiler transformers’ lifespan.

    What causes a boiler transformer to fail?

    There are a few causes a boiler transformer might fail, which include:  

    • Electrical surges or faults
    • Overheating due to poor ventilation
    • Wear and tear over time
    • Incorrect voltage supply or mismatched transformer ratings 

    How do i choose the right replacement boiler transformer?

    When replacing a boiler transformer, ensure it matches the voltage, power, and compatibility requirements of your specific boiler model. You can refer to the boiler’s manual or consult with a professional to find the correct part.

    How can I maintain my boiler transformer?

    To maintain your boiler transformer, you may want to: 

    • Schedule regular servicing to check for wear or electrical issues
    • Ensure adequate ventilation around the transformer
    • Protect your boiler from power surges with a surge protector
    • Inspect for damage, loose wiring, and clean regularly 

    These steps can help extend the life of your transformer and ensure efficient boiler operation.Â