BoilerFaultCodesWhat the manual says
Manufacturer manualSLAVES NON PRESENT There are no slave boards connected
From this model's manual
Verified against the Vokera Condexa Pro installation & service manual, page 56.
What causes this fault?
This fault occurs when the boiler's main brain loses its connection to the internal sub-boards that coordinate the heating demand. The most common reason is a loose or damaged communication wire between these components, or a electronic failure within one of the secondary control boards themselves.
Engineer required
This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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