Low
1018 on Worcester Bosch Greenstar 8000+ GR8701iW 30 S

Your boiler is simply reminding you that its scheduled annual service is due based on the date set in its system.

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

Maintenance interval expired: 1. Check the maintenance date set in the menu. 2. Reset the maintenance code via the reset menu.

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.

DIY fix possible

Check the current date and service interval settings in the boiler's menuReset the maintenance reminder code via the reset menu once your annual service has been completed by a Gas Safe engineer

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

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

200201202203204208214224227228229232233234235237238242244245246247248249250251252253254257258259262263265268269273281283284305306357358360362363604811815101010131017101910221023102510371065106810701071107210751076208529082910291429152916292029232924292529262927292829312940294629482949295029512952295529562957296129622963296529662968296929702971297229802981

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