BoilerFaultCodesVokera Red LED On Fault Code
Also written as REDLEDON — same fault.
The Vokera Red LED On fault code means: your boiler has detected a general internal error and has safely shut itself down to prevent damage, meaning you currently have no heating or hot water.. It appears on 1 Vokera model in our database.
Technical description: Internal fault (Reset required)
What causes the Vokera Red LED On fault?
A solid red light indicates that the boiler's internal safety system has detected a generic malfunction, preventing it from firing up. This is often caused by a failure in the ignition process or a breakdown in communication between the main control board and vital components like the gas valve. While a simple reset may temporarily clear it, the fault usually points to a failing part that is no longer operating within safe limits.
DIY fix possible
Locate the mode selector switch on the front control panel.Turn the switch to the 'OFF/RESET' position and wait for 5 seconds.Turn the switch back to either the 'Hot Water' or 'Heating and Hot Water' position.
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Gas Safe Register →Vokera models that show the Red LED On fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Vokera Red LED On 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