Medium
8/0/9 on Worcester Bosch GB162

Your boiler is having trouble communicating with an internal sensor that monitors your hot water temperature.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

The contacts to DHW temperature sensor 2 have shorted or are interrupted, the sensor has been connected incorrectly or 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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