Commercial engineers · Regional network
    Commercial boiler model guide

    Hamworthy Stratton Repair & Servicing

    Stratton is Hamworthy’s wall-hung commercial boiler family. It should not be grouped with the floor-standing Upton or ModuMax format. Stratton mk3 uses stainless-steel heat-transfer construction, while earlier marks have their own controls, components and instructions. Record the mark and complete size designation before requesting a repair or discussing a replacement.

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    Hamworthy Stratton: overview and specifications

    The following is identification-level information, not installation or adjustment instructions. Exact operating limits, gas settings and permitted system conditions must come from the manual for the actual appliance, fuel and revision.
    • Stratton mk3 published nominal sizes extend from 40 to 150 kW.
    • Wall-hung condensing appliance with stainless-steel exchanger in mk3 documentation.
    • Mk3 technical sheets describe 5:1 turndown.
    • Mk3 water-pressure ratings differ by model size; confirm the exact table rather than one range-wide limit.

    Typical commercial applications

    Wall-hung Stratton plant can suit commercial heating where compact appliance placement and multi-boiler capacity are useful. A cascade arrangement still needs correctly designed primary flow, headers and controls. Engineers assess the actual wall/frame installation and clearance for servicing, not merely the number of boilers on the asset list.
    • Record which heating or boiler-fed hot-water circuit the appliance serves.
    • Review the shared pumps, pressure equipment, flue and control arrangement with the boiler.
    • Confirm current load and service continuity needs before major repair decisions.

    Hamworthy Stratton: faults and diagnostic approach

    High-temperature events are investigated through primary circulation, exchanger condition and sensor accuracy. Ignition and flame messages need the correct burner-control family and supply checks. Preserve the first code and identify the installed controller; a code table from another Stratton mark can misdirect the diagnosis.
    • 1. Preserve the original display and fault chronology before a permitted reset.
    • 2. Establish appliance identity, genuine demand and safe common supply conditions.
    • 3. Test the suspected cause through manufacturer procedures and independent measurements.
    • 4. Agree a repair only when the findings support the proposed component or system remedy.

    Parts compatibility and repairability

    Mark, output and serial application determine Stratton service kits and electronics. OEM references and supported replacements are checked before ordering; do not substitute an Upton component because it shares a controller family. A genuine new control still requires any prescribed configuration and operational verification.
    • Confirm availability, application and lead time before promising return to service.
    • Do not bypass an unavailable safety component or improvise combustion adjustments.
    • Compare major repair cost with supported replacement options where condition or spares make repair doubtful.

    Servicing, testing and booking

    Mk3 stainless-steel cleaning requirements and air/water-quality guidance are followed through its own manual. Check burner sealing, condensate, safety controls and circulation. Relevant gas integrity and combustion tests are followed by demand, modulation and shutdown verification, including the common sequence on multi-boiler sites.
    • Provide the model/serial details, controller identity, symptoms and access requirements through ServiceM8.
    • The provider confirms regional coverage, familiarity and attendance; a request is not a guaranteed appointment.
    • Diagnosis time, output, service kits, access, specialist parts and post-work testing determine the quote. No fixed national rate applies.
    Other equipment

    Also serviced: gas water heaters and warehouse heaters

    Separate from boiler work, we also arrange repair and servicing for commercial gas-fired water heaters and warehouse space heaters.

    Frequently asked questions

    Which Hamworthy Stratton specifications apply?

    The full model, type, output, fuel and revision determine the technical table. The high-level summary here does not replace the applicable manufacturer instructions.

    Can a Hamworthy Stratton fault code select a spare?

    No. A code describes an operating condition. Safe diagnosis, component tests and compatible application references are needed before a replacement is agreed.

    What follows a combustion-side repair?

    The prescribed reassembly and combustion checks, applicable gas integrity testing and verification of controls and useful heat delivery follow the actual work.

    How do I book for Hamworthy Stratton?

    Use Book an Engineer to supply the data plate, original fault, site postcode and access information through ServiceM8. The regional provider confirms competence, appointment and pricing.

    Book a commercial boiler engineer

    Share the site postcode, boiler make and model, symptoms and access requirements. The central booking operation routes your request to the appropriate regional provider, who confirms availability, scope and pricing.