6P High

Buderus 6P Fault Code

The Buderus 6P fault code means: your boiler is struggling to ignite because the starting component is staying on longer than it should to try and get the flames going.. It appears on 1 Buderus model in our database.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description: Blinking fault code: Glow ignitor has been on too long
Typical repair cost £140-£260 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Buderus models that show the 6P fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Buderus 6P fault code information on this page is sourced and cross-checked against the official Buderus service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026