Baxi
The Baxi HP40 Air Source Heat Pump offers a standard 2-year warranty, extendable to 5 years upon registration and annual servicing, provided the magnetic filter is fitted.
The Baxi HP40 Air Source Heat Pump (ASHP) is designed for domestic heating applications in the UK. This page provides essential information for heating engineers and homeowners, focusing on the appliance's warranty terms, activation procedures, and support channels. Understanding these details is crucial for proper installation, commissioning, and long-term maintenance, ensuring compliance with manufacturer guidelines and maximising appliance lifespan.
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Full technical specifications extracted from the manufacturer brochure. Empty sections are hidden.
The Baxi HP40 ASHP unit, magnetic filter and wired controller comes with a 2 year warranty as standard. To activate the enhanced 5 year warranty, if you are a Baxi Heat Pump Installer, you can register the warranty directly through your Baxi Works account within 30 days of commissioning. For all other installers, to activate the 5 year warranty, you will need to book a Baxi commissioning visit via baxiworks.co.uk (UK) or baxiworks.ie (ROI), log in or create a Baxi Works account, register the product, and select Baxi to undertake the commissioning visit. On completion of commissioning, the 5 year warranty and Benchmark will be registered on your behalf. The Baxi HP40 ASHP should be registered on Baxi Works. The warranty start date commences from the date of commissioning. The Benchmark checklist must be completed during commissioning, preferably digitally using the Benchmark app. The magnetic filter supplied with the Baxi HP40 ASHP must be fitted during installation and registered through your Baxi Works account; the warranty for the Baxi HP40 ASHP will revert to 2 years if the magnetic filter is not fitted at installation or is removed. The Baxi HP40 ASHP and the magnetic filter must be serviced annually within 60 days of the anniversary of the commissioning date, in accordance with the procedure set out in the installation and maintenance manual. Full terms and conditions are available at baxi.co.uk/trade/register-a-warranty (UK) or baxi.ie/customer-support/register-warranty (ROI).
The Baxi HP40 Air Source Heat Pump (ASHP) is a key offering from Baxi for domestic heating in the UK. This reference focuses primarily on the appliance's warranty provisions and associated support protocols, as detailed in its official warranty guide. Technical specifications beyond these warranty terms are not extensively covered in this specific document.
The Baxi HP40 ASHP unit, along with its magnetic filter and wired controller, is supplied with a standard **2-year warranty**. This warranty period can be extended to **5 years** under specific conditions. For Baxi Heat Pump Installers, the enhanced warranty is activated by registering the product directly through a Baxi Works account within 30 days of commissioning. Other installers must book a Baxi commissioning visit via baxiworks.co.uk (or baxiworks.ie for ROI). During this visit, Baxi will undertake the commissioning, and upon completion, the 5-year warranty and Benchmark will be registered on the installer's behalf. Warranty registration is mandatory for the enhanced period.
A critical condition for maintaining the 5-year warranty is the correct installation and registration of the supplied magnetic filter. Failure to fit or subsequent removal of this filter will cause the warranty for the Baxi HP40 ASHP to revert to the standard 2-year period. The warranty commencement date is tied to the date of commissioning, and the Benchmark checklist must be completed at this stage, preferably using the Benchmark app.
Ongoing maintenance is essential for warranty validity. The Baxi HP40 ASHP and its magnetic filter require servicing annually, specifically within 60 days of the commissioning date's anniversary. This must be carried out in accordance with the procedures outlined in the installation and maintenance manual.
In the event of an issue, customers are directed to contact their installer first. Should an installer suspect a warranty failure, they are advised to contact Baxi's Technical Team for initial phone support. If a Baxi Engineer visit is deemed necessary, a pre-authorisation for card details will be requested during booking, applicable only if the issue is determined not to be a warranty failure. Full terms and conditions are available on the Baxi UK and ROI trade websites.
Common questions from engineers and homeowners about the Baxi HP40 ASHP.
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Specifications on this page are extracted from the manufacturer brochure. Always cross-check against the latest datasheet before commissioning or quoting. Last updated 30 April 2026.