What the manual says
Manufacturer manualMaintenance is due on <dd.mm.yyyy> please call your service engineer: Advanced service reminder warning. 1. Check the maintenance 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.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register →
Boiler cover options
Avoid the next call-out bill
Monthly cover means no unexpected bills when your boiler breaks down.
Approved partner
Get a quote →
Domestic Appliance Guard
Unlimited call-outs, 24/7 helpline, no price-hike promise
Affiliate links. We may earn a commission at no extra cost to you.
Related fault codes
All 103 fault codes on the Greenstar 8000+ GR8701iW 30 S
Seeing a different code? Every code this model can display, in one place.
200201202203204208214224227228229232233234235237238242244245246247248249250251252253254257258259262263265268269273281283284305306357358360362363604811815101010131017101810191022102310251037106510681071107210751076208529082910291429152916292029232924292529262927292829312940294629482949295029512952295529562957296129622963296529662968296929702971297229802981