how can i fix it 24cdi worcester boiler?

Hi, this is Worcester, Bosch Group
We offer technical advice for installers on our website: www.worcester-bosch.co.uk.
Our technical team can also help with enquiries - please call 0844 892 3366.
We look forward to helping you.

Worcester, Bosch Group
March 2010

sounds like the ot water flow switch is stuck on, test by setting boiler to hot water only, then turn the hot water temperature dial right down, if it cut's off the flow switch is stuck.

Ian
March 2010