Low
E10 on Baxi 400 Combi (range)

Your boiler is having trouble communicating with the optional sensor used to measure the temperature outside, meaning it might not heat your home efficiently.

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.

Technical description

Outdoor sensor error

Engineer required

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

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Related fault codes

E09View →E135View →

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