Emergency
2910 on Worcester Bosch Greenstar 8000+ GR8701iW 30 S

Your boiler has detected an issue with the exhaust flue system or internal water drainage, so it has safely shut down to prevent any unsafe operation.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Act immediately

Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now. This fault can be dangerous if ignored.

What the manual says

Manufacturer manual

Fault in flue system: 1. Check the flue for obstructions and remove any found. 2. Check the flue integrity test. 3. Check for water in the sump and check the siphon operation.

From this model's manual
Verified against the Worcester Bosch/Worcester Bosch Wb 47115 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 is a emergency severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

EAView →2900View →2911View →

All 103 fault codes on the Greenstar 8000+ GR8701iW 30 S

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

200201202203204208214224227228229232233234235237238242244245246247248249250251252253254257258259262263265268269273281283284305306357358360362363604811815101010131017101810191022102310251037106510681070107110721075107620852908291429152916292029232924292529262927292829312940294629482949295029512952295529562957296129622963296529662968296929702971297229802981

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