BoilerFaultCodesVokera E13 Fault Code
The Vokera E13 fault code means: your boiler's main control board has suffered an internal electronic failure and can no longer manage the system's functions.. It appears on 2 Vokera models in our database.
Technical description: Internal fault (PCB)
What causes the Vokera E13 fault?
This fault occurs when the boiler's internal computer brain suffers a hardware failure, meaning it can no longer safely coordinate the various sensors and components. The most common reasons include standard wear and tear of electronic capacitors or damage caused by an external electrical power surge. Because the control board is the central processing unit, the boiler shuts down immediately as it can no longer guarantee safe operation.
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 E13 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Vokera E13 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