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Boiler fault finding

Boiler fault diagnosis without the manual hunt

A fault code is useful. Knowing what to do with it is what gets the appliance diagnosed.

TradeAssistIQ is built to help heating engineers get from the code or symptom in front of them to the technical information that matters, without spending the call-out jumping between PDFs and search results.

Search a fault in TradeAssistIQ

Go further than the code

Search by manufacturer, model, fault code or symptom. Where the approved technical knowledge supports it, TradeAssistIQ can surface likely causes, checks, expected values, component tests, wiring information and relevant manufacturer material.

The aim is not to turn every fault into a generic checklist. The appliance identity matters. The manufacturer information matters. The actual fault in front of you matters.

Built for the job in front of you

Use the displayed code when you have one. If there is no code, describe what the appliance is doing. A boiler that will not ignite, loses pressure, overheats or produces no hot water needs a different starting point from a simple error-code definition.

Useful next pages

Heat pump fault codesFree fault code lookupTechnical assistant

TradeAssistIQ is an engineering support tool. Diagnosis, testing, repair and commissioning must be carried out by appropriately qualified persons and in accordance with the appliance manufacturer’s instructions and applicable regulations.