BoilerFaultCodesVokera A07 Fault Code
The Vokera A07 fault code means: your boiler has detected an internal electrical safety failure and has shut down to prevent an unsafe operating condition.. It appears on 1 Vokera model in our database.
Technical description: Safety relay does not open
What causes the Vokera A07 fault?
This fault occurs when a critical internal electrical component, known as a safety relay, becomes stuck in the closed position on the control board. The boiler detects that it can no longer physically cut the power to vital components if it needed to, so it shuts down as a protective measure. The most common reason for this is electrical wear and tear or a hardware failure within the boiler's main control box.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Vokera models that show the A07 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Vokera A07 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