pressure has dropped below one bar. two taps underneath, which one is used to top up water in system?.

denise, September 2010

Hi, this is Worcester, Bosch Group.

We have a section on our website which talks you through boiler repressurisation, link: http://www.worcester-bosch.co.uk/homeowner/products/faqs/boiler-repressurisation/the-heating-systems-pressure-is-low-how-do-i-re-fill-the-system

Hope this is of help to you

Worcester, Bosch Group, September 2010