High
neon flashing (Section H & K) on Baxi Combi 80e

Your boiler's internal computer has crashed or is struggling to process the reset command, preventing it from starting up again safely.

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.

Technical description

Selector in reset position and neon does not extinguish

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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