Medium
47 on Alpha E-Tec Plus NX

Your boiler is deliberately limiting its heating power because it has detected a mismatch between the water flow and the amount of heat being generated.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

Burner power limitation

From this model's manual
Verified against the Alpha E Tec Plus Nx installation & service manual, page 62.
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 fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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