If there is a power supply to the boiler then an engineer is needed.
boiler-error-codes-worcester-bosch-greenstar-28cdi-classic-my-boiler-is-displaying-something-different-to-the-suggestions-above
If there is a power supply to the boiler then an engineer is needed.
boiler-error-codes-worcester-bosch-greenstar-28cdi-classic-my-boiler-is-displaying-something-different-to-the-suggestions-above