Low
27 on Intergas Rapid

Your boiler is receiving an incorrect signal from the weather sensor installed outside your home, so it is using a standard internal setting instead.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Shortcut outside sensor: Replace the outside sensor

From this model's manual
Verified against the Intergas Rapid installation & service manual, page 55.
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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