80 Medium

Vokera 80 Fault Code

The Vokera 80 fault code means: your boiler is experiencing a temporary communication error or initialization issue that may prevent it from starting correctly.. It appears on 3 Vokera models in our database.

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description: Temporary fault code (Refer to section 7.10)

What causes the Vokera 80 fault?

This fault occurs when the boiler's internal computer chips struggle to communicate with each other during a startup check. It is often caused by a loose connection in the wiring or a glitch on the main control board that prevents the system from confirming everything is safe to run.

Typical repair cost £100-220 (including labour)

DIY fix possible

Locate the mode selector switch on the front of the boiler.Turn the switch to the 'OFF/RESET' position and wait for 5 seconds.Turn the switch back to either 'Hot Water Only' or 'Heating and Hot Water' to restart the system.

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Vokera models that show the 80 fault code

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

Source

Vokera 80 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