High
All LEDs Off on Vokera Option

Your boiler has lost all power and is completely unresponsive, meaning it is currently unable to provide heating or hot water.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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.

What the manual says

Manufacturer manual

No power, blown fuse, Internal fault. Ensure power supply to Boiler is on, check fuse, Contact engineer

From this model's manual
Verified against the Vokera Boiler Option installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

What causes this fault?

This fault occurs when the boiler's electrical circuit is broken, preventing the control system from turning on. The most common reason is a blown 3A fuse in the wall spur or on the internal board, often triggered by a power surge or a failing internal component causing short circuit.

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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