Worcester Bosch Greenstar 34CDi Classic – No lights lit permanently on the display – Boiler Error Code

Boiler Make and Model: Worcester Bosch Greenstar 34CDi Classic
Fault Code: No lights lit permanently on the display?
Firstly, check there is a power supply to the boiler. Take care when doing this or ask a competent person or an installer to help.

If there is a power supply to the boiler then an engineer is needed.