How much does it cost to fix Viessmann error code 63:2 to 63:14?

Typical repair cost for the Viessmann 63:2 to 63:14 fault is £100-£180 including labour.

63:2 to 63:14 Low

Viessmann 63:2 to 63:14 Fault Code

Q: What does the Viessmann 63:2 to 63:14 fault code mean?

Your boiler is notifying you that a specific pre-set service interval or scheduled maintenance time has elapsed and a routine check-up is now required.

Also written as 632TO6314 — same fault.

The Viessmann 63:2 to 63:14 fault code means: your boiler is notifying you that a specific pre-set service interval or scheduled maintenance time has elapsed and a routine check-up is now required.. It appears on 5 Viessmann models in our database.

Technical description: every 2 to every 14 days

What causes the Viessmann 63:2 to 63:14 fault?

This notification is triggered by the boiler's internal timer reaching a pre-set date or number of burner operating hours. It serves as an automated reminder that the manufacturer's recommended maintenance window has arrived to ensure continued efficiency. It is not caused by a mechanical failure, but rather by the system tracking its own usage history.

Typical repair cost £100-£180 (including labour)

Engineer required

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

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Viessmann models that show the 63:2 to 63:14 fault code

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

Source

Viessmann 63:2 to 63:14 fault code information on this page is sourced and cross-checked against the official Viessmann service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026