High
Burner reset light green/red fast flash (0.2s) on Worcester Bosch Danesmoor

Your boiler's reset button is being pressed or held for too long, or there is an electronic glitch preventing the system from restarting properly.

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

Reset pushbutton / remote reset anomaly

From this model's manual
Verified against the Worcester Danesmoor Riello 535 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.

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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Avoid the next call-out bill

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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