High
05 on Alpha Intec2 30SE

Your boiler has detected an issue with the sensor that measures the flow of water for your central heating, which is likely preventing the system from heating your home.

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

CH flow sensor fault - Incorrect flow sensor resistance value

From this model's manual
Verified against the Alpha/Alpha Intec2 20 30se 04 15 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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Related fault codes

06View →

All 54 fault codes on the Intec2 30SE

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

010203040608101215162023242931363738434445464751596061627273747778798084878889909192939495969899E03E38E62E72F0

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