Low
E10 on Baxi Suprima 40

Your boiler is having trouble communicating with the optional sensor used to measure the temperature outside, meaning it may not know how hard it needs to work to heat your home.

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

DIY fix possible

Check the external sensor on your outside wall for any obvious signs of damage or loose wiringTurn the boiler power off and back on again to see if the error clearsIf the fault persists, contact an engineer to inspect the sensor wiring

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Related fault codes

E1View →E119View →E133View →

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