Vokera RED LED LIGHT Fault Code
Also written as REDLEDLIGHT — same fault.
The Vokera RED LED LIGHT fault code means: your boiler has stopped working because it failed to light the flame properly, or there is an internal communication error preventing it from running.. It appears on 2 Vokera models in our database.
Technical description: Fault condition - check NTC sensor or control board connections.
What causes the Vokera RED LED LIGHT fault?
This fault occurs when the boiler's internal computer can no longer accurately read the temperature of the water flowing through the system. The most common reason is that a temperature sensor has failed or become disconnected, though it can also be caused by the main control board failing to process the signal correctly.
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 RED LED LIGHT fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Vokera RED LED LIGHT 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