Unknown
2963 on Worcester Bosch Greenstar 8000+ Style

Worcester Bosch Greenstar 8000+ Style fault code 2963

What the manual says

Manufacturer manual

The heat exchanger sensor or both supply and heat exchanger sensors are defect

From this model's manual
Verified against the Worcester Bosch/Worcester Bosch Wb 47114 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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All 99 fault codes on the Greenstar 8000+ Style

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