Medium
499 on Ideal Logic Air

Your boiler has lost communication with the weather sensor installed outside your home, meaning it can no longer automatically adjust its settings based on the outside temperature.

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

No outdoor connection Fault

From this model's manual
Verified against the Ideal Logic Air installation & service manual, page 75.
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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