High
neon flashing (Burner lights) on Baxi Combi 80e

Your boiler is trying to start but cannot light the gas flame, meaning you will not have any 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

Burner fails to light; refer to Section F.

From this model's manual
Verified against the Combi Instant 80e Current 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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Boiler cover options

Avoid the next call-out bill

A cover plan would handle faults like neon flashing (Burner lights): no call-out fees, no surprise bills.

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