BoilerFaultCodesVokera 38 Fault Code
The Vokera 38 fault code means: your boiler’s internal computer has lost its programmed settings and no longer knows how to operate correctly.. It appears on 3 Vokera models in our database.
Technical description: wrong parameter from the factory
What causes the Vokera 38 fault?
This fault occurs when the boiler's main control board experiences a memory failure or data corruption, causing it to lose its factory-set identity. It essentially means the computer chip no longer understands which model of boiler it is supposed to be controlling. The most common reason is an internal electronic component failure on the PCB, often triggered by an electrical surge or simple age-related wear.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Gas Safe Register →Vokera models that show the 38 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Vokera 38 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