BoilerFaultCodesVokera E065 Fault Code
The Vokera E065 fault code means: your boiler has detected an electrical issue with the part that controls how much gas is burned, causing the system to shut down for safety.. It appears on 4 Vokera models in our database.
Technical description: Current modulation alarm
What causes the Vokera E065 fault?
This fault occurs when the boiler's main control board loses the ability to properly manage the flow of gas to the burner. It is typically caused by a failing electrical coil on the gas valve or a breakdown in the communication between the valve and the circuit board. Because the boiler cannot safely regulate the flame size, it shuts down to prevent damage or unsafe operation.
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 E065 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Vokera E065 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