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Baxi heat pumps

Specifications, fault codes and service routines for popular Baxi heat pumps on BoilerTag.

Real-world Baxi fault diagnostics

Diagnostic checklists from engineer-submitted Baxi faults, with step-by-step checks and safety notes.

  • 800

    The Baxi 800 boiler intermittently heating without a fault code can be attributed to several common issues, including low system pressure,…

  • 100he — fault Ignition Lockout

    The Baxi 100HE displaying an 'Ignition Lockout' fault, with no heating or hot water and no noises, indicates the boiler has failed to…

  • 824 Combi 2 — fault E.04.10

    The Baxi 824 Combi 2 displaying fault code E.04.10 indicates that the burner has failed to ignite after four attempts.

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