Medium
Burner reset light green/red fast flash (0.2s) on Grant Vortex Blue

Your boiler's reset system has detected a fault with the button itself, often because it is being held down too long or is stuck.

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

Reset pushbutton / remote reset anomaly

From this model's manual
Verified against the Grant Vortexblue Doc0131 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.

DIY fix possible

Check if the reset button on the burner is physically stuck in the 'in' positionGently press and release the button to ensure it clicks and springs backTurn the electrical power to the boiler off for 30 seconds and then back onEnsure any remote reset devices or thermostats are not continuously sending a reset signal

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A cover plan would handle faults like Burner reset light green/red fast flash (0.2s): no call-out fees, no surprise bills.

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