High
No Flashes (after 15 seconds) on Baxi Bermuda 552

Your boiler has failed to detect a flame or a temperature reading, meaning it has completely shut down for safety.

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

Temperature Sensor / Gas Flame Detection fault. Replace P.C.B.

From this model's manual
This code was read directly from the manufacturer service manual for this model.
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 No Flashes (after 15 seconds): no call-out fees, no surprise bills.

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