High
43 on Alpha Intec 50CS

Your boiler is struggling to stay lit because the flame keeps going out, which can sometimes happen during very windy weather.

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

Loss of flame rectification - Repeated loss of flame signal during operation. This fault can occur if the flue is exposed to high wind conditions (shown as E38 in the fault code history in the INFO menu)

Shared across the Alpha Intec² range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s 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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Related fault codes

E38View →

All 61 fault codes on the Intec 50CS

Seeing a different code? Every code this model can display, in one place.

0102030405060810121516202324252729313234353637384445464751596061627273747778798084878889909192939495969899CEE03E38E62E72F4STOP

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