How much does it cost to fix Vokera error code 80/90/91?

Typical repair cost for the Vokera 80/90/91 fault is £150-300 including labour.

80/90/91 High

Vokera 80/90/91 Fault Code

Q: What does the Vokera 80/90/91 fault code mean?

Your boiler has detected an internal electronic error that is preventing it from operating correctly.

Also written as 809091 — same fault.

The Vokera 80/90/91 fault code means: your boiler has detected an internal electronic error that is preventing it from operating correctly.. It appears on 3 Vokera models in our database.

Technical description: Internal fault

Typical repair cost £150-300 (including labour)

Engineer required

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

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Vokera models that show the 80/90/91 fault code

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

Easi-Heat 25 Repair: £150-300
Easi-Heat 29 Repair: £150-300
Linea HE Repair: £150-300

Source

Vokera 80/90/91 fault code information on this page is sourced and cross-checked against the official Vokera service / installation manuals for each affected model.

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