Low
8/2/7 on Worcester Bosch GB162

Your boiler is struggling because it has lost the signal from the weather sensor that tells it how cold it is 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.

What the manual says

Manufacturer manual

RC35-HK2 temperature sensor. The external temperature sensor of the remote control (control unit) of the heating circuit is defective.

From this model's manual
Verified against the Worcester Bosch Gb162 installation & service 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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