Low
1037 W on Worcester Bosch Junior 24i

Your boiler has lost connection to its outdoor thermometer, meaning it cannot automatically adjust your heating based on the weather outside.

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 temperature sensor is defective – check the connecting lead

Engineer required

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

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