Low
D.47 on Vaillant Combi Compact 282EB

Your boiler's outdoor sensor is struggling to communicate the outside temperature, which means your heating might not adjust correctly to the weather.

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.

Technical description

Outside temperature with weather compensator – Vaillant controller only

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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