Worcester Bosch Greenstar 38CDi Classic – Pressure reads below one bar – Boiler Error Code

Boiler Make and Model: Worcester Bosch Greenstar 38CDi Classic
Fault Code: Pressure reads below one bar?
If your boiler’s pressure gauge reads below 1 bar, it means that your boiler needs repressurising.

This can be done using an internal filling key or using a external filling hose.