BoilerFaultCodesHeatline d.68 Fault Code
Also written as D68 — same fault.
The Heatline d.68 fault code means: your boiler failed to light on its first try, which means it may struggle to keep your heating or hot water running consistently.. It appears on 7 Heatline models in our database.
Technical description: Unsuccessfull ignitions at fi rst attempt
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Heatline models that show the d.68 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Heatline d.68 fault code information on this page is sourced and cross-checked against the official Heatline service / installation manuals for each affected model.
- Heatline CaprizPlus 28 manual (PDF)
- Heatline CaprizPlus 24a manual (PDF)
- Heatline Compact 24 manual (PDF)
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026