Low Warning
F06 on Ideal Logic Max System

Your boiler's outdoor temperature monitor is not sending a signal, which may cause your heating to behave unpredictably based on the weather.

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

Outside Sensor Fault

What causes this fault?

This fault occurs when the boiler loses communication with the small sensor located on the exterior wall of your home. It is usually caused by water ingress damaging the sensor's internal circuitry or a loose connection in the wiring that links the sensor to the boiler's main control board.

This fault is more common during autumn and winter, as heavy rain or freezing conditions can accelerate the degradation of the outdoor sensor's casing.

Engineer required

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

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Related fault codes

F1View →F2View →L1View →

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