Low
10 on Atag iC Range

Your boiler has lost connection with the sensor that monitors the outdoor temperature, which might cause your heating to respond incorrectly to 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.

What the manual says

Manufacturer manual

Outside sensor error (open, short circuit, or out of range)

Shared across the iC Range range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
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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Related fault codes

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All 33 fault codes on the iC Range

Seeing a different code? Every code this model can display, in one place.

1P42040506178101102104105108109110111112114117118119129133140151154180181201203303304501612

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