its showing fault code 04 which is low water pressure
but the pressure is just over 1.5 but the boiler wont reset
any ideas anyone.

rob, July 2010

Volkera Linea 24 fault 04 indicates a lack of flow through the boiler.
This is likely to be a flow pressure switch fault or the boiler pump is knacked.
Depends on how old the boiler is as the flow switch was introduced at a later date to the original boiler as a modification.

Carefree, July 2010