RED LED LIGHT High

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.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

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.

Typical repair cost £120-250 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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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